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ADAPT-MAT 2010 User Manual

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1. 43 4 6 3 Camera and Viewports Toolbar eese eux pa yn EE reo Yuan 46 40A Settings Lor 47 S Morel cio WOO MOAN c 48 4 00 60 Model De sion Strips Toolbar renens p rae 49 45 Modelme Loolb4tsesedtievee tein a taedia 50 4 6 8 Support Line Results Scale Toolbar eeeeeeeemee 52 4 6 9 Reinforcement OO Dar sett Hr t UR ree latus dA e 53 4 6 10 Cursor Function and 53 MODELING AND DESIGN eee eene eee eee eene eese 55 Dol OVERVIEW a 57 52 DESIGN PROCEDURE xiii eu said REPRE ERU EO neater ee 57 5 24 Create the Structural Model T 57 5322 Soil Support Conditions sereen a 58 3 2 5 Validate the Structural Mode lesre E vei dpa taris 58 324 Completand Finalize Input Data especi qo aeuo bett ire tesi 58 3 2 3 Perom AVAL VSS deca eciam cus edid so reste fundens 59 2 2 0 Prepare DES DE 59 5 2 7 Validate the Code Compliance of the 59 23 2 9 Generate Structural Drawings uiro EI Ere ER ese 60 5 2 0 Generate Structural Calculation 60 WEE ere t o EHE E VE 63 O
2. luis ean UO nado tas esq dus 16 2 0 di uod da SINGER NUR DIN PU UM MM SUID EE 18 2 10 GENERATION OF DRAWINGS 1 toI aint cece aan ae 18 2 11 LINK WITH 3RD PARTY PROGRAMS AND ADAPT DATA EXCHANGE 19 QUICK STAR Tonini muito asserts ies docuit aimes vue ed 21 3l OVERVIEW MM E M 29 2122 OPENING THE PROGRAM tivi eet eU e o n te bem 23 a OUICKAOSTARTeSLEPSBY STEP 24 24 232 The MOST i idi ero d 25 2 33 Miewine the Mode sostenuto eoo Heroid a 26 Deine the Soll Support 28 23 9 JADDpIeationot LoadS doe scisco vn UN debes N 20 3 5 0 IM sbiand Analy E codici den eae ae 3l KA 3MIEWIUTS ANd YSE RESUS tie foster opea onte toti oo Patatas to ues 32 USER INTERFACE Gente o sore veris paste Ee LS 35 Content LIST OF CONTENTS 41 OVERVIEW OF ADAPT BUILDER PLATFORM 37 4 2 ADAPT BUILDER INITIAL SCREEN 37 4 3 lt ADAPT MODELER MAIN 39 4 4 MOUSE FUNCTION AND OPERATION eene eere 40 AS TOOLS SPECIFIC TO ADAPTPSNPAC ipiis totae eoa Ini uio To 40 V6 OBNBRALIOODHBARS tb say tiu eT d ui ee 4 461 Transform to Structural Components 1 41 40 27 3SelectioOHl T OODE
3. 77 6 5 1 Set and Assign Material 78 6 5 1 1 Set and Assign Multiple Concrete Materials 78 6 5 1 2 Set and Assign Mild Steel Material Rebar 60 6 5 2 ASSIOM SOIL 80 995 17 he ap 62 6 5 4 Input and Assign 62 6 541 Pater Load Generation 83 6 5 4 2 Iane Load Cr nebatiotisos 63 0543 Pomt Load Generations ER VE Panties 64 6 52 4 oad CombInattonsao cde te adotta uda UU dtd 64 6 66 FINITE ELEMENT MESHING ANALYSIS AND VIEW RESULTS 86 6 6 1 Finite Element s e o tb eere ho eae a ede ace tes 67 6002 UC MING eran 87 VEW RESUS P 88 6 00 1 View DelleetloD 89 6 6 3 2 Review Of Soil Pressure 69 50 33 Generate Lie COonDt OU ince ee DIN ii 91 6 7 GENERATION OF SUPPORT LINES AND USE OF SPLITTERS 94 Goneratlor or ctas a eia Cod Pura fua uas 94 On SO Lets dados estu e bi dicitur Eoi tiet i dod 96 68 PRODUCE AND REVIEW DESIGN RESULTS sss 98 6 8 1 Review Analysis Design
4. veas Tob Laad FIGURE 6 6 5 DISPLAY SCREEN OF FEM SOLUTIONS 6 6 3 2 Review of Soil Pressure e Select Soil Pressure under the Results tab This will display soil pressure for the selected Load Combination Use the tab Load Case Combinations from left hand panel to scroll through all combinations specified in the model The soil pressure is reported as ksi 89 Chapter 6 ADAPT MAT 2010 RC TUTORIAL US units FERAE E 90 Results Deformation E Column Actions only Slab wall Actions wall Actions only x Slab Actions only Pressure FIGURE 6 6 6 SOIL PRESSURE UNDER RESULT TAB Important Note The allowable soil pressure does not apply to the pressure reported at a point in a contour plot such as in Figure 6 6 7 The allowable soil pressure is intended for the average pressure over a minimum area such as a square or circle having a diameter or side value between three to four times of the slab thickness In the design check of this tutorial if the point pressure is within the allowable value the design is considered acceptable Otherwise using the pressure contour the average pressure over the preceding minimum area would have had to be calculated and checked with the allowable value Strength Dead and Live Stress 1 Contour 0 001 ksi Maximum Value 0 000e 000 ksi 0 000 0 000 0 000 ft 74 105 11 180 9 667 8 Minimum Value 1 202 002 FIGURE 6 6 7
5. Color Palette All All All All 15 00 in 20 00 in Save as Default Cancel FIGURE 3 3 10 SELECT SET VIEW ITEMS DIALOG BOX LOADS TAB 3 3 6 Mesh and Analyze Once the model has been built with components supports and loads the model can be meshed and analyzed for a solution To mesh the structure FEM Process Toolbar open the FEM Process Toolbar SB LIBER 27 ai Automatic Mesh Generation button 99 A dialogue window will appear prompting the user to select a mesh and node consolidation dimension The default values are set to 3 ft and 1 5 ft The recommend mesh size is typically between 3 4 times slab thickness and the recommend node consolidation dimension 15 between 2 3 times slab thicknesses After meshing the structure the model can by analyzed by selecting the Analyze Structure tool E and select The FEM menu also contains the functions required to mesh and analyze the slab 3l Chapter 3 QUICK START ADAF riteria FEM Reports Help H Display FEM Toolbars E Automatic Mesh Generation Manual Mesh Generation Clear Mesh Analysis Options EE Analyze Struckure Create Design Sections Manually Line Contour View Design Results Toolbar Shift Nodes FIGURE 3 3 11 FEM MENU 3 3 7 Viewing Analysis Results After the general model analysis has been completed the analysis results can be viewed graphically and in report format For a cursory review of results afte
6. Wall m Beam a Drop Cap Panel a 8 Opening Gridline a a B Skip Loading Reinforcement m Rebar Span Direction X Y X Y Support Line EE IDEM Tributary Region Splitter j a E Color Palette All None None None Save as Default Dimension Label Symbol EEGI Symbol Font Height 5 T EEEEEE 20 in 20 00 in gin 20 00 in 20 00 in eh 20 00 in 1i 2000 in 10 in 20 00 in 20 00 in amp in 20 00 in Al Al Cancel FIGURE 3 3 5 SELECT SET VIEW ITEMS DIALOG BOX STRUCTURAL COMPONENTS TAB Any feature from either toolbar among other selections can be made from View toolbar Here you also have the option of turning off on the view of individual structural components To do this select View Structural Entities and display or turn off the display of the desired component 27 Chapter 3 QUICK START ADAPT ler ADAPT BUILDER MAT it View User Interface Settings Tools Draw Modify Build Loading G lt Redraw X Zoom pan Select Display Item Select Deselect View by Select Deselect Label Display J Display WCS C wire Frame e Remove Hidden Lines Rendering Viewport View Orientation X3 Undo Camera Direction View Structural Entities
7. Selhweight 1 00 Live load 3 00 s Selfweight 3 00 Dead load 1 00 Live load Service Tatal Load 1 00 Selhweight 1 00 Dead load one 1 00 Live load SERVICE TOTAL LOAD FIGURE 6 5 11 LOAD COMBINATION DIALOG BOX Now save the file as MAT US ACI 02 ADM This file contains the structural model materials soil support design code rebar specification and loadings with load combinations FINITE ELEMENT MESHING ANALYSIS AND VIEW RESULTS Open the previously saved US ACI 02 if you have closed it If you have completed all steps successfully as specified in the earlier sections you may continue with the file you created and saved in your hard disk The model is now ready for analysis ADAPT MAT supports the Object Oriented Modeling approach which allows users to model the physical components as they are truly represented Once done the program can automatically generate a finite element mesh From Criteria gt Analysis Design Options the user can specify a sparse or uniform mesh The default 15 set to a sparse mesh as it will lead to a faster processing time without compromise or a degraded solution The user can also specify the suggested cell size and node consolidation parameters It 1s recommended to review Chapter 8 of the ADAPT Floor Pro User Manual for a thorough description of meshing features in ADAPT Builder as they are also applicable to ADA
8. results e Complete and finalize input data e Perform analysis Prepare e Design e Generate structural drawings e Generate structural calculation reports 5 2 1 Create the Structural Model Use one of the following options to create your structural model o Import an AUTOCAD file of the model DXF or DWG and convert it to structural model by transformation 57 Chapter 5 MODELING AND DESIGN PROCESS ADAPT 5 2 2 5 2 3 5 2 4 58 o Define the foundation slab and loading using the Build and Loading tools of the program This is also referred to as manual generation of a model o Import geometry and load on the model from a multi story analysis program such as ETABS or other programs supported by ADAPT Builder platform o Use the generic data exchange file format of the program to create and import the geometry of the foundation mat The common and more accurate method for the generation of geometry of your structural model from the first option above that 1s importing an AUTOCAD file since most of the commercially available multi story software does not model the complex foundation geometry with adequate degree of accuracy Define Soil Support Conditions Define the location and properties of the soil support piles and rock anchors if any Validate the Structural Model In this step you determine whether the structural model of the foundation slab you have generated and its support conditions a
9. 175 FIGURE 6 5 7 DESIGN CODE TAB INSIDE CRITERIA DIALOG BOX 6 5 4 It is recommended to click on all of the tabs and ensure the parameters Specific to this tutorial go to Preferred Reinforcement Size and Material tab to specify preferred rebar diameters for the top bar 5 and for the bottom bar as 0 Go to the Shear Design Options tab to specify the preferred bar size as 3 0 375 1n shear reinforcement type 15 stud and number of rails per side 15 2 Finally click on OK to apply the changes Input and Assign Loadings ADAPT MAT will automatically consider Self Weight as we specified Wc for the concrete materials The program also has two reserve load cases as Dead Load and Live Load In this tutorial we need to specify area loads line loads and point loads Hence let us ensure that the Loading Toolbar 1s displayed in the screen ADAPT MAT 2010 RC TUTORIAL US units Chapter 6 You may use the User Interface drop down menu to turn on the Loading Toolbar Alternatively from the Loading drop down menu you can turn on Display Loading Toolbar 6 5 4 1 6 5 4 2 Patch Load Generation Select the slab and click on the Patch Load Wizard icon from the Loading Toolbar Specify a value of 0 04 ksf as Superimposed Dead Load The program will display a confirmation dialog specifying one patch load is applied This will apply 0 04 ksf uniformly distributed loading on the entire foundation slab Create Patch Load Automatical
10. ADAPT MAT 2010 USER MANUAL Copyright 2011 support adaptsoft com www adaptsoft com ADAPT Corporation Redwood City California 94061 USA Tel 1 650 306 2400 Fax 1 650 306 2401 ADAPT International Pvt Ltd Kolkata India Tel 91 33 302 86580 Fax 91 33 224 67281 ADAP LIST OF CONTENTS Content LIST OF CONTENTS OVERVIEW iaire eerie enO EAE eidecssustiets 1 BASIC PRATURDBS iiti b 5 2 AVERVIEW a a 7 220 3OBONIBIRY n Y 2 95 SUPPORT CONDITION S casi 11 SSOILSHUDDOEE 11 252 Compression Only 12 2 9 97 TOO DC HOES 12 Zoe Grade Beati SUDDOEE RV Um DE CUM E ES DU US UU UA 12 22059 PUNO E 13 2 2 0 POMS DiI OSs pee cee uei aede v E ete at iuis 14 2 9 Fonon PPO NE ve sapeva Vt at cv 14 2 9 5 doe un Pains exec A 14 PAGS MN GUI re I IUE TIR Im 14 2 34 10 5M OTIS 15 zai MATERIAL PROPERTIES 15 2 LOADS vated 15 Load 15 2 52 Load C OTDITIQtIOTls 15 20 REINFORCEMENT erede aeg eias tun aqu tuere tuns 16 Der 3 POSISDENSIONIB QS 458 Q1 EDI ROSE 16 2 9
11. 98 0 5 2 Generate Desrem 5eetlolls os bep late tte oa umo RIEN 90 6 8 3 Review Design Strips Column and Middle Strips 99 6 5 4 Design the Desisn Secu Ons etaed 101 6 8 5 Adequacy Check for the Design 102 6 8 6 Generic Rebar ioc eti oai eto EAR esI 105 6 5 7 Specify Base Reinforcement and Re design esses 106 6 5 5 Puuchins Shear C Deck ouo ue oe Ip BURN IUE d PEU dE 108 ANALYTICAL BACKGROUND sissccscssccssssancesniutdegctannvansetetsancastvacesosvasadcan 113 iii iv Content LIST OF CONTENTS S MEE GS 115 52 OSDRUCDIURALONIODELBNO eds Reiten Eoaomses testium Eoo ola 115 on ME IU SIS Mm 115 E22 PII eT 116 do MISCELLANEOUS TOPIK tid Nac et tabo Set DEUM ope tet Coss 116 Jus POPES SUTE dori Gru int MT tbe V A 116 SSUperposrtolkons be c cet re usce t ertt 118 OVERVIEW Chapter 1 Chapter 1 OVERVIEW Chapter 1 OVERVIEW This Page Left Intentionally BLANK IDAPT OVERVIEW Chapter 1 ADAPT MAT is a computer program that enables you to model analyze design and generate structural drawings for ground supported concrete structures that are used to transfer load to the underlain soil in a serviceable and safe manner The program can handle practically all possible foundation configura
12. BE Ede S i i ZU Xv tex t ATO 1 op A Y F Og 9 ox Q ay E a F amp QBSQivNe oY PERPUAAH 62 74 33 45 3 00 SI Curren ISNPON GRD OFF 1 00 1 00 04 02 10 FIGURE 4 3 1 ADAPT MODELER MAIN SCREEN IN MAT MODE ADAPT Modeler operates the same way as other Windows programs AII program tools are accessed from one of the toolbars provided by the program or through the menus provided in the menu bar at the top of the screen Toolbars may be opened closed docked to the edge of the screen or dragged to any position on the screen as View menu item Tools can also be accessed by clicking the right mouse button while the cursor is in the Menu Bar or Toolbar areas of the screen The User Information Bar displays tool specific information and any coordinate values that may be typed by the user for specific program procedures The Status Bar displays such information as the mouse cursor coordinates location current unit system snapping status and gridline spacing and status A short description of each specific tool also appears in this area when the mouse cursor 15 placed over the corresponding tool button 39 Chapter 4 USER INTERFACE Jiiigiiti 4 4 4 5 40 MOUSE FUNCTION AND OPERATION The primary function of the mouse 15 through its left click Depending on the mode of the program as outlined in the next section the left click will result in s
13. Post tensioned Slab On Ground 5081 z Design scope and PT Extension modules Dynamic Rebar Design DRD IW Post tensioning Fabrication Shop Drawing Import E sport loadinggeometn v Generic REVIT ROBOT STAAD Pro ETABS System of units C sl American C MES Cancel Help FIGURE 4 2 1 ADAPT BUILDER INITIAL SCREEN The Extension modules included in ADAPT Builder are Dynamic Rebar Design DRD and the Post tensioning Fabrication Shop Drawing module A detailed description of each module is given in the ADAPT Floor Pro User Manual Under mport Export loading geometry area program gives the choice to turn on other 3rd party general structural analysis or modeling solutions from which user can import geometry and or loading Finally one needs to specify the System of units SI US or MKS can be selected in the program Upon clicking on OK it will open ADAPT MAT environment 38 E USER INTERFACE Chapter 4 4 5 ADAPT MODELER MAIN SCREEN Figure 4 3 1 shows the full screen display of the ADAPT Modeler program in MAT mode with typical features labeled for easy identification 2 mat01 ADAPT BUILDER MAT File Edit View User Interface Settings Tools Draw Modify Build Loading Strips Material Criteria FEM Reports Help Dc W D Ov OF ti rf 8964055 u QEQQMQ COO FG
14. u ag ag ag All Layers On All Layers 3g b x BE FIGURE 6 4 4 LAYERS DIALOG BOX o Now only the polygons drawn in selected layer will be displayed in the screen Select all of them using Ctrl A Once the column polygons are selected use the Transform Column icon from the Transform to Structural Component Toolbar Alternatively you use menu item Build gt Transform Drawing Entities gt Transform entity into Column Note Only polygons can be transformed using the transformation toolbar in ADAPT Builder If your drawing 75 Chapter 6 ADAPT MAT 2010 RC TUTORIAL US units file contains components that are composed of individual lines this tool will not work o Change the view to an Isometric View by selecting Top Front Right View from the Camera and Viewports Toolbar You will notice all polygons are changed to a Column entity in the drawing you may double click on any column to change or view its General Properties Location FEM Properties and CAD properties as shown in Figure 6 4 5 Notice that when in ADAPT MAT mode all columns will be resting on slab 1 modeled as Upper Column and placed under Current Plane Column layer General Locator SPER Pr 4 FIGURE 6 4 5 TOP FRONT RIGHT VIEW WITH TRANSFORMED COLUMN AND 76 COLUMN DIALOG o Select the menu item Settings Drawing Layers to o
15. 1 50 inch Soil Properties Let us take an example of the structural modeling of foundations that rest on multiple soil layers and each have a different spring constant Winkler constant Figure 6 3 3 shows a foundation slab on three layers of soil each with its own spring constant k1 k2 and k3 The stiffness experienced by the foundation slab at its interface with soil interface A in the figure is due to the combined responses of the three underlain soil layers 1 2 and 3 User needs to determine the equivalent spring constant that must be specified for the determination of slab deflection and its design For academia let us also determine the force and displacement at the interface of each of the layers FOUNDATION SLAB SOIL LAYER 2 SOIL LAYER SOIL LAYER 3 FIGURE 6 3 3 SLAB ON MULTI LAYER SOIL FOUNDATION ADAPT MAT 2010 RC TUTORIAL US units Chapter 6 6 3 9 1 6 3 9 2 6 3 9 3 6 3 9 4 Equivalent Spring Constant The equivalent spring constant for design of the foundation is the sum of the inverse of the spring constants of each of the underlain soil layers For the condition shown in Figure 6 3 3 the constant to be used for the analysis of the foundation ke 15 given by ke 1 k1 1 k2 1 k3 Soil Pressure The displacement of the foundation at its interface with the soil interface A in Figure 6 3 3 is determined through the analysis of the fou
16. 9 4 specify kza value 81 08 pci Retain the spring type as Compression Only Soil Support General Location Properties t l Label Sail Support 1 Group Group 1 kza 8 108 01 Pci Spring 5 ol type Shittnesses are along global axes bulk modulus of oil Compression tension or compression tension applies to the vertical direction only FIGURE 6 5 6 SOIL SUPPORT PROPERTY BOX 81 Chapter 6 ADAPT MAT 2010 RC TUTORIAL US units FERAE E 82 6 5 3 Set Criteria Let us now set design criteria for this project This should be done before we enter in loadings as automatic load combinations are generated based on the design code selected by the user Use menu item Criteria to open the dialog box By default the Criteria input window will open under the Design Code tab Select ACI 2005 IBC 2009 for this project Figure 6 5 7 Please note that some of the codes will be unavailable for selection as they do not support the US unit system Criteria Two ay slab criteria One way slab criteria Prefered Reinforcement Size and Material Shear Design Options Beam criteria Rebar Round Lp Spacing Analysis Design Options Design Code Reinforcement Bar Lengths Rebar Minimum Cover Choose code t ACI 1999 pe f Canadian 1884 6 t ACI 200 2005 sz C Canadian 2004 c AM ELE Help Strength reduction factors Bending max value 0 90 Shear two way
17. ADAPT Floor Pro User Manual ADAPT MAT has the capability of importing solutions directly from other commercially available programs through use of the ADAPT Integration Console IC Through creation of input output files this program creates a new ADAPT Data Exchange File that is imported to ADAPT MAT In its current form ADAPT IC will import both lateral and gravity forces per level As 15 often the case with mat foundations the entire gravity load on a structure would be considered in mat design along with lateral loads There are current alternate methods that can be used in a third party program which will allow the total gravity load to be imported to ADAPT MAT It is recommend to consult with an ADAPT Technical Support Specialist for addition information support adaptsoft com 19 Chapter 2 BASIC FEATURES 20 This Page Left Intentionally BLANK QUICK START Chapter 3 Chapter 3 QUICK START 21 Chapter 3 QUICK START 22 This Page Left Intentionally BLANK QUICK START Chapter 3 31 OVERVIEW This chapter includes a simple example as an introduction to the program Once you have reviewed the example in this chapter it 15 recommended to review Chapter 6 Tutorial for a step by step description of data generation and design 32 OPENING THE PROGRAM e Open the program to display the splash window shown below Select Mat raft foundations grade beams option if not a
18. and layers in the program The settings are also accessed from the Settings menu 47 Chapter 4 USER INTERFACE 48 4 6 5 2 Layer Setting The color and line settings for each layer can also be modified in this window rae Line Style Setting Click on this tool to open a list of the available line styles and descriptions Select the line style of your choice Colors Setting This tool opens a color palette from which you can select background of the modeling window Display WCS This toggle tool displays or hides the World Coordinate System icon at its real position in 0 0 0 Snap Toolbar 7 4 OXLABRE ST FIGURE 4 6 7 SNAP TOOLBAR This toolbar contains all the snapping tools of the program To snap to an entity the mouse must be in Select Pick mode and you must bring the cursor close to the location where you will snap the entity Snap to Endpoint Snap to Midpoint C Snap to Center Snap to Intersection L Snap to Perpendicular This tool forces the mouse cursor to snap to a target entity such that the entity being created will be positioned perpendicular to its target Snap to Nearest HH Snap to Grid This tool forces the mouse cursor to snap to the nearest grid point USER INTERFACE Chapter 4 4 6 6 H8 Grid Settings This tool opens the Grid Settings dialog box where grid spacing angle and other parameters can be set amp Snap Settings This tool opens
19. dictated by ACI318 08 Section 7 12 1s not required for soil supported slabs Hence the program will not report any reinforcement required for serviceability conditions regardless of the option shown in Figure 6 8 1 being selected as Yes 6 8 2 Generate Design Sections To generate design sections manually at each of the support lines use the menu item FEM gt Generate Design Sections Automatically This will introduce a middle strip in between the main support lines column strips and generate design strips in X and Y directions 6 8 3 Review Design Strips Column and Middle Strips Use the menu item Reports gt Single Default Reports gt Graphical I Design Plans gt Design Strips X direction to view the generated 99 Chapter 6 ADAPT MAT 2010 RC TUTORIAL US units column strips and middle strips in the X direction as shown in Figure 6 8 2 Middle and column strips are shown hatched in Figure 6 8 3 for this example Reports Help Single Default Reports Report Project Title Compiled Reports Report Cover Tabular Loading k Design Plans 4 Support Lines X direction Mesh Plan Support Lines Y direckion Design Strips x direction Design Strips direction FIGURE 6 8 2 DESIGN STRIPS IN X DIRECTION MENU FIGURE 6 8 3 COLUMN AND MIDDLE STRIPS IN X DIRECTION e Similarly use the menu item Reports gt Single Default Reports gt Graphi
20. fy as 60 ksi and the value of Es as 29000 ksi Click OK Since this is single entry this property will be applied for all components 6 5 2 Assign Soil Support There are two choices to model soil support One may snap the corner points of the slab to model the soil support Otherwise as we want to model soil support of uniform stiffness for the entire foundation we can model a rectangular or quadrilateral soil support which inscribes the entire foundation Both will give same result considering soil support below the foundation slab area only For this tutorial the second option will be used Build Loading Strips Material Criteria FEM Reports Help Display Modeling Toolbars we Preprocessing KE Construction Aids Structural Components Rebar Support d d k d d Spring Soil Support Point Spring Transform Drawing Entities 1 Line Spring Eg Sail Support FIGURE 6 5 4 SOIL SUPPORT MENU ITEM 80 2255222 3 ADAPT MAT 2010 RC TUTORIAL US units Chapter 6 Use menu item Build gt Spring Soil Support gt Soil Support The UIB yellow bar at bottom of interface will ask to specify four corners Click on four corners surrounding the slab region and press C to Close End Accept Ensure that the soil spring boundary inscribes the mat area Figure 6 5 5 FIGURE 6 5 5 SOIL SUPPORT INSCRIBING THE MAT FOUNDATION Now double click on the Soil Support to open its property box Figure 6 5 6 As computed in Section 6 3
21. line automatically than to create one manually Splitters Splitters are used to delineate a separation in slab You can use them to identify the boundary of a region that you wish to consider in your design Also they can be used to identify the boundaries of a design strip tributary They have other important and useful functions too Each splitter is associated with the design intended for one of the orthogonal directions referred to as X or Y directions It 15 defined according to the strip direction the splitter is meant to affect Each splitter affects strips one specified direction at a time Therefore separate splitters should be drawn for each direction For example if a splitter 1s intended to affect the strips in the X direction draw the splitter in the X direction USER INTERFACE Chapter 4 ta Strip Method Load Transfer Specific to ADAPT PT and ADAPT RC When a support line 15 designed to rest on another support line in the orthogonal direction and transfer its load to the supporting line there 1s no physical support such as a column or wall at the intersection The reinforcement in the slab or post tensioning is designed to carry the load of the support recipient support line In modeling for strip method you must mark the location where a support line is shedding load without the presence of a supporting wall or column 3 Connect Drop Caps to Columns This tool is used to connect all existing drop cap end
22. mm extension or tons cm of extension The program provides you the option to specify stiffness for displacements other than vertical direction Grade Beam Support Grade beams that are integrated with a mat slab do not need additional support definition The soil region that supports the mat will also support the grade beam But for grade beams that are isolated Fig 2 3 1 you need to specify a line support along the beams The stiffness of the support is defined in terms of displacement of the soil support per unit force placed on unit length of the grade beam Ib 1n2 kN mm2 t m2 Obviously the wider the grade beam the stronger will be the resistance of the supporting soil since the larger contact area mobilizes a larger volume of soil beneath the beam BASIC FEATURES Chapter 2 FIGURE 2 3 1 STANDALONE AND INTEGRATED GRADE BEAMS 2 3 5 For example if the bulk modulus of the soil is 200 Ib 1n3 0 06 N mm3 units and the width of the grade beam 15 24 inch 600 mm the resistance of the soil per unit length of the beam to be specified is 200x24 4 800 Ib in2 length of grade beam 0 06 600 36 N mm2 length In the general case you will use line spring tool with compression stiffness in the vertical direction to model grade beam supports Line Springs Line springs provide you with a more general support condition than the simple support of a member on soil The support provided by a line spring can be resistance a
23. odifv Build Loading Strips Material Criteria FEM Reports Help 1 E Display Modeling Toolbars Preprocessing Construction Aids Structural Components 27 Slab Region Rebar t f column Support d hy Wall Spring Soil Support Beam Transform Drawing Entities S es Drop Cap Panel FIGURE 3 3 2 BUILD STRUCTURAL COMPONENTS MENU ITEM Aodify Build Loading Strips Material Criteria FEM Reports Help E Bw OF 8 MS te 1001 9 Display Modeling Toolbars qu Preprocessing Construction Aids Structural Components Rebar Support a ee edet MEN Spring Soil Support Transform Drawing Entities gt KA Transform Lines into Polygons n Transform entity into Column v Transform entity into Drop Cap Panel DA Transform entity into Wall gt Transform entity into several Walls 27 Transform entity into Slab Region Transform entity into Opening RA Transform entity into Beam FIGURE 3 3 3 TRANSFORM DRAWING ENTITIES MENU ITEM 25 Chapter 3 QUICK START ADAPT Once a structural component is added double click on the any component to modify the default dimension s of the component After changes are made to the component properties make sure to select the green checkmark for the changes to be updated and active Slab Region ALS General Location Properties H gm Label Slab Region Material Concrete Group Groupi l Thickness 800 in FIGU
24. of 2 0 The results from this design are shown in Figure 6 8 21 180 90 SCHEDULE OF STUD RAILS FOR PUNCHING SHEAR REINFORCEMENT Load Combination Strength Number of rails per side 2 Column Number Stud Studs ID of diameter studs rail in Distance Notes Dimensions are in in Distance distance of the vertical bars from the respective column face 7 16 5 indicates layer 7 at distance 16 50 in from face of support 7 16 5 indicates layer 7 at distance 16 50 in from face of drop caps exceeds maximum allowable by code Refer to details for arrangement FIGURE 6 8 21 PUNCHING SHEAR REINFORCEMENT 111 Chapter 6 ADAPT MAT 2010 RC TUTORIAL US units 112 This Page Left Intentionally BLANK ANALYTICAL BACKGROUND Chapter 7 Chapter 7 ANALYTICAL BACKGROUND 113 Chapter 7 ANALYTICAL BACKGROUND 114 This Page Left Intentionally BLANK JEA E ANALYTICAL BACKGROUND Chapter 7 This section provides information on several aspects of the analysis and design features of ADAPT MAT 7 1Y OVERVIEW ADAPT MAT is a standalone computer program within the umbrella of the ADAPT Builder software platform It has been entirely developed by ADAPT s team of structural engineers and software developers in providing a complete analysis and design solution for mat and raft foundations The program is the most comprehensive three dimensional 3D finite element FEM analysis and design tool for c
25. of Generate Design Sections Automatically Create Design Sections Manually Linie Contour Ux Generate Line Contour Te Display Hide Contour NS Increase Number of Displayed Contour Lines wenn ness estis We Reduce Number of Displayed Contour Lines View Design Results Toolbar 12 DisplavIHide Text Shown Contour Lines amp w Contour Display Setting Shift Nodes FIGURE 6 6 8 LINE CONTOUR OPTIONS UNDER FEM MENU WP Generate Line Contour Use this menu to generate the line contours after analyzing the structure Figure 6 6 8 91 Chapter 6 ADAPT MAT 2010 RC TUTORIAL US units WW Display Hide Contour Use this menu to either display or to hide the line contours after generating them Ww Increase Number of Displayed Contour Lines This menu allows you to increase the displayed number of contour lines uw Reduce Number of Displayed Contour Lines Use this menu to decrease the number of contour lines for your model 129 Display Hide Text Shown on Contour Lines Use this menu to either display or to hide the labels for the contour lines that are labeled This menu will open the Result Display Settings Figure 6 6 9 to alter the contour line display aa Contour Display Setting Generate Line Contour Load combination Strength Slab actions M11 bending moment about local axis 1 t M22 bending moment about local axis 2 Orientation Angle from global axis LEN degrees En laca
26. two or more intersecting walls this button 1s used to transform it into several individual walls each having a rectangular cross section In the analysis however the program treats the walls integrated into one along their common vertical joints The tool operates in the same manner as the Transform Column tool Transform Drop Cap Panel This button is used to transform a rectangle closed polyline into a drop cap The tool operates in the same manner as the Transform Column f tool Transform Beam This button is used to transform a polygon closed polyline into a beam The tool operates in the same manner as the Transform Column 1 tool USER INTERFACE Chapter 4 Transform Opening This button 15 used to transform a polygon closed polyline into an opening The tool operates in the same manner as Transform Column f tool 4 6 2 Selection Toolbar This toolbar contains all tools related to selecting specific elements objects and structural components in the model Each tool 1s described below Selection Toolbar 8 6B FIGURE 4 6 2 SELECTION TOOLBAR Hint Mode When activated the arrow displays the identification of the entities to which it points In this mode you cannot select an entity by clicking on it Ji Window Selection When this tool is highlighted the Pick Select mode is active You can select an entity by clicking on it or a group
27. 0 x Dead load 1 60 x Live load 6 3 6 2 Serviceability Load Combinations Load Combinations for Serviceability Check Sustained in service load combination stress check U 1 00 x Selfweight 1 00 x Dead load 0 30 x Live load Total in service load combination stress check U 1 00 x Selfweight 1 00 x Dead load 1 00 x Live load 6 3 6 3 Initial Load Combinations Load Combinations for Initial staged check U 1 00 x Selfweight Deflections The deflections will be calculated for both uncracked gross moment of inertia and cracked effective moment of inertia Long term deflections are estimated using a creep coefficient of 2 For the mat foundation the maximum deflections are maintained below the following values with the understanding that the structure is not attached to nonstructural elements likely to be damaged by large deflections of the slab Maximum allowable total long term deflection 2 L 240 Maximum allowable live load deflection 2 L 360 Where L length of clear span Hence load combination for long term deflection due to creep and the instantaneous action of live load U 3 00 X Dead load 1 00 x Live load 69 Chapter 6 ADAPT MAT 2010 RC TUTORIAL US units FERAE 6 3 8 6 3 9 70 Load combination for checking deflection under live load U 1 00 Live Load Cover Mild Reinforcement clear covers for the Raft are given below Cover to top bars 1 25 inch Cover to bottom bars
28. 2 0 02 0 03 0 03 0 03 0 03 0 03 0 03 0 03 0003 0 03 0 03 0 03 0 03 0 02 0 02 0 02 0 02 0 02 0 02 FIGURE 6 8 10 DEFLECTION RESULTS ALONG SUPPORT LINE i jii 4 Suppor Support Line FIGURE 6 8 11 SUPPORT LINES AND DESIGN SECTIONS RESULTS IN X apport Line DIRECTION 104 ETE E EU HE ADAPT MAT 2010 RC TUTORIAL US units Chapter 6 J ai m i a I i 4 i RA Ii M i Lu TL E TU FIGURE 6 8 12 SUPPORT LINES AND DESIGN SECTIONS RESULTS IN Y DIRECTION Figures 6 8 11 and Figure 6 8 12 show support line results for the tutorial example model 6 5 6 Generate Rebar Drawing Once the design of sections 15 complete use the menu item FEM gt Generate Rebar Drawing to display the rebar required to meet demand for serviceability strength or envelope The dialog box as shown in Figure 6 8 13 will be displayed The user can select the any of the load combinations defined in the model to view rebar for Note that when the ACI318 code 15 selected no rebar will be generated for serviceability conditions as the code waives temperature and shrinkage reinforcement for soil supported slabs You may choose the Bar Length Selection and the Bar Orientation and then click OK If the orientation of the bars 1s Along support lines the reinforcing is aligned parallel to the support lines even if they are not in the X Y
29. 3 will be displayed Specify the direction for the support line for which this splitter will be associated This 15 the X direction for this example The splitters as described above are shown in Figure 6 7 4 If you re model is different than the example for this tutorial input splitters in a like manner for all necessary support lines Chapter 6 EXT General Location Praperties H Label Splitter 1 Group Group 1 Support Line direction FIGURE 6 7 3 SPLITTER DIALOG BOX 14 FIGURE 6 7 4 SUPPORT LINES AND SPLITTERS IN X DIRECTION e Splitters 1 and 2 in this example are shown in Figure 6 7 4 Using the approach described above for the X direction draw support lines in Y direction From Figure 6 7 5 note that Support Lines 8 15 were created using the Support Line Wizard tool Support Line 16 requires use of the Create Support Line tool since it only contains two supports at the interior of the slab in the width and length of the scanning band where the Support Line Wizard 1s used e In this example for Support Line 16 we need to create two more splitters to correctly generate tributary regions for this design strip 97 Chapter 6 ADAPT MAT 2010 RC TUTORIAL US units 22222322 These splitters are shown in Figure 6 7 5 In your model review the support lines and identify those which require the use of splitters If you are using this model for the tutorial input the splitters a
30. 4 Chapter 4 USER INTERFACE 35 Chapter 4 USER INTERFACE 36 This Page Left Intentionally BLANK DAFI USER INTERFACE Chapter 4 4 1 4 2 Geometry Models Modeler Revit Structure AutoCAD Robot Millenniu Concrete PT Tendon Design Modeling ETABS Staad Pro Environment OVERVIEW OF ADAPT BUILDER PLATFORM Developed from the ground up with ADAPT Building Information Modeling BIM Technology the ADAPT Builder Platform is a collection of fully integrated design and analysis tools for concrete floor systems foundations and beam structures whether with or without post tensioning The solution s intuitive and easy to use 3D component modeling capabilities allow you to quickly model any structure In addition the Builder Platform 1s the industry s only solution that gives you the flexibility to analyze 3D structural models using either the Finite Element Method FEM or the Equivalent Frame Method EFM Specialized design tools for concrete beam frames one way or column supported flat slabs parking structures mat foundations ground supported slabs and built in building codes e g American Canadian British European and Australian ADAPT s Builder allows for a streamlined worktlow ADAPT Builder Express EX Concrete Design Suite Structural drawings PT amp Rebar ADAPTPT s True 3D ADAPT Floor Pro ADAPT Floor Pro Floor Pro 3D FEM Analysis ADAPT MA
31. First Drawing Import At this step the simplified structural or architectural drawing will be imported to the Builder program and converted to a structural model Follow the steps below o Open the Builder program in MAT mode with American unit system as shown in Figure 4 2 1 o From File pull down menu select File Import DXF DWG o Open the desired dwg file o Now Project Calibration Dialog Figure 6 4 1 will appear Select Yes to enter into calibration mode The cursor will default to Snap mode o Before you click make sure the Snap to End button 1s selected from the Snap Toolbar 73 OE rs EF Chapter 6 PROJECT CALIBRATION Do vau want to calibrate the imported drawing Calibration is necessary if the drawing vou import is nok drawn to the Scale vau plan to use FIGURE 6 4 1 PROJECT CALIBRATION DIALOG o Calibrate the drawing using any of the dimension lines shown in the drawing or a known distance between two points The User Information Bar UIB will ask to Enter the Start Point of Calibration Line This 1s the yellow bar at the bottom of the main interface as shown in Figure 4 3 1 Click on the first known point The will ask to Enter the End Point of Calibration Line Click on the second known point Now it will ask to Enter the Correct distance in feet between the two Points you Selected Input the proper dimension in feet and hit enter This will complete calibration of the dr
32. M Toolbars LT Automatic Mesh Generation Manual Mesh Generation B Clear Mesh Analysis Options Analyze Structure Punching Shear Check Create Design Sections Manually Line Conbaur iu view Analysis Results View Design Results Toolbar Shift Nodes FIGURE 6 6 4 FEM MENU This will open the AD Viewer View Results screen From the left hand panel of the screen select the tab Load Case Combinations 88 Jiiciii 3 ADAPT MAT 2010 RC TUTORIAL US units Chapter 6 6 6 3 1 View Deflection e Select Service Total Load from the list of the load cases e On the top of the same left hand panel click on Results From the list of results select Deformation gt Z translation This will display the vertical deflection of the structure e Click on the button Display Results tu icon This will display the color contour for displacement as shown in Figure 6 6 5 e Use the Warping 1 and Rotate tools on the screen to examine the deflected shape of the model Die ct User interface ook Help c PPP FPP PFA Mo Xx i gt SP ee te oe ee Lond 2 Tranelstion 1 Contour 1 006 in l m Umt m Bim Value 11756001 fin 74 105 11 180 0667p raraiahon Minimum Value 2 3IJe 007 fin 0 000 Lond Carez Combnabora and E niis ocupa Display
33. PT MAT 2252222 ADAPT MAT 2010 RC TUTORIAL US units Chapter 6 6 6 1 Finite Element Meshing The menu item FEM gt Automatic Mesh Generation will be used for creation of the first mesh In this tutorial the suggested cell size of 3 ft will be used Turn on the Shift nodes automatically option if it is not already set and specify maximum distance as 1 5 ft FIGURE 6 6 1 AUTOMATIC MESH GENERATION DIALOG Click on OK to generate finite element mesh as shown below WH EIS TO OER ER AEE ur rE CEE L T LI COPA wonne EAE D SERRE eT BEE VA EET HES EES a TERES FRENE E und d 5 HN SCPE ae IPP emery A PTT PAY TH EEH TT E HH e A FIGURE 6 6 2 FINITE ELEMENT MESH 6 6 2 Analyze Structure Use the menu item FEM gt Analyze Structure and confirm in the subsequent dialog box Figure 6 6 3 that the model is ready for analysis For this model with soil spring supports the program will produce 87 OE rs EF Chapter 6 ADAPT MAT 2010 RC TUTORIAL US units iterative solutions for each load combination Click on Yes to save solution and terminate this dialog Analysis Status Analysis successfully completed Do you want to save the solution FIGURE 6 6 3 ANALYSIS STATUS DIALOG 6 6 3 View Results Once the analysis has been successfully completed the program will confirm this use the menu item FEM gt View Results FEM Reports Help Display FE
34. RE 3 3 4 SLAB REGION PROPERTY BOX 3 3 3 Viewing the Model 26 Once a model has been successfully built where all necessary components are added it is important to validate the accuracy of the model Doing so will ensure that the model most closely represents the foundation system being analyzed To make a cursory view of the model in two or three dimensions use the Camera and Viewports Camera and Yiewports Toolbar TEENE toolbar The tools located here allow you to view the model from different elevation and plan views You can also elect to view the structure as an isometric view This is useful when verifying more complex geometries and loading The toolbar contains several selections allowing you to pan zoom rotate and refresh the view The View toolbar gives options to customize the display and what components and loads are shown in the main interface One of the most commonly used tools is the Select Set View Items 65 icon When this button 15 activated menu of items will be shown prompting the user to set those components and loads to be viewed along with the option to display component or load ID s Dimensions load magnitude or moments Labels or Symbols The symbol size and font height of text can also be modified ADAPT QUICK START Chapter 3 Select Set View Items Structural Components Finite Element Loads Item Display Render ID Slab Region Column
35. SOIL PRESSURE FOR STRENGTH CONDITION The user may also view other actions like Bending Moment of the slab about the X or Y global axes for different conditions This gives an indication of the regions with maximum moments in a particular direction and possible line of cracking failure for the concrete slab This might be used as a guideline to define support line for design ADAPT ADAPT MAT 2010 RC TUTORIAL US units Chapter 6 Close the ADViewer screen by using menu item File Exit or the Close amp button at the top right corner This will close the results viewer and return back to main screen of ADAPT MAT 6 6 3 3 Generate Line Contour Use the menu item FEM gt Line Contour Generate Line Contour Figure 6 6 8 This will bring up a dialog box prompting the user to select the required load combination and slab actions Select Strength as the load combination and specify M11 as the slab action as shown in Figure 6 6 9 e Using the menu item FEM gt Line Contour gt Contour Display Setting you can control the display of value density of contour etc Set one moment contour equal to 0 3 kip More details about all menu items under Line Contour are described later Slab action for M11 and M22 are shown in Figure 6 6 11 and Figure 6 6 12 FEM Reports Help Display FEM Toolbars LIES Automatic Mesh Generation Manual Mesh Generation Pd Clear Mesh Analysis Options Analyze Structure Punching Shear Check
36. Set View Items Structural Components Finite Element Loads Item Slab Region Column Wall Beam Drop Cap Panel Opening Gridline Skip Loading Mesh Reinforcement Rebar Span Direction Support Line Tributary Region Splitter Color Palette Save as Default Display Render ID Dimension Label Symbol Symbol Size Font Height v gin 20 00 in 3in 20 00 in 3in 20 00 in 6 in 20 00 in gin oo in BE 5 o e e 5114 5 nm n2 ojo oo oo 5 f 5 m w o ojo of e oo 3 gt 5 o e e elal els 6 in o e 5 gin 20 00 in Al Cancel FIGURE 6 4 6 SELECT SET VIEW ITEMS DIALOG BOX O Now save the file as MAT US ACI 01 ADM This file contains the structural model created from the drawing file using the ADAPT MAT environment MATERIAL SOIL SUPPORT CRITERIA AND LOADINGS Open the previously saved US ACI 01 ADM if you have closed it If you have completed all of the steps successfully as specified in the earlier section you may continue with the file you created and saved in your hard disk 77 Chapter 6 ADAPT MAT 2010 RC TUTORIAL US units AERAR E 78 6 5 1 Set and Assign Material Properties 6 5 1 1 Set and Assign Multiple Concrete Materials Material Add Since we need to specify two grades of Concrete one for the Slab another for columns and walls us
37. T 3D FEM Analysis ADAPTSOG Revit Structure AutoCAD s i C E m FA 3D Model FIGURE 4 1 1 ADAPT BUILDER EXPRESS WORKFLOW 3D FEM Analysis ADAPT BUILDER INITIAL SCREEN ADAPT Builder is a general platform which contains ADAPT MAT for the design of mat foundations While opening the program the user can choose the configuration as required in the particular project ADAPT Builder s initial screen is shown in the Figure 4 2 1 As a basic interface of the program Modeler will remain ON under Structural Modeling area 37 Chapter 4 USER INTERFACE ADAPT Then user can select the Structure Type and choose among the following e Elevated Floor Systems Beam Frames Grid Frames ADAPT Floor Pro e Mat Raft Foundation Grade Beams ADAPT MAT e Post Tensioned Slab On Ground ADAPT SOG Select ADAPT MAT for the design and analysis of a mat foundation system To design conventional reinforced concrete structure select RC Only under Design Scope To design a post tensioned concrete structure select RC and PT ADAPT BUILDER CONCRETE DESIGN PLATFORM Concrete Design Suite Structural modeling Iw Modeler r Structure type Floor systems beam frames grid frames Select analysis method w 3D Finite Element ADAPT Floor Pra Equivalent Frame Export Design Strip ta ADAPT PT AC Mat taft foundations grade beams ADAPT MAT
38. a series of Compression Only springs with some finite stiffness superposition of load cases doesn t apply As an example the deflection for the dead load and live load cases when calculated individually may not add up to the deflection calculated for the combined actions Use the menu item Loading Load Combination The program will contain following load combinations Service Total Load 1 00 x Selfweight 1 00 x Dead load 4 1 00 x Live load Service Sustained Load 1 00 x Selfweight 1 00 x Dead load 0 30 x Live load Strength Dead and Live 1 20 x Selfweight 1 20 x Dead load 1 60 x Live load Strength Dead Load Only 1 40 x Selfweight 1 40 x Dead load You need to create the following combinations for checking deflection due to Live Load only and Long Term Deflection Specify NO CODE CHECK under Analysis Design Options as you don t need to check stress and calculate rebar requirement for these conditions LongTerm 3 00 x Selfweight 3 00 x Dead load 1 00 x Live load LiveLoad 1 00 x Live Load 85 Chapter 6 ADAPT MAT 2010 RC TUTORIAL US units 222523273 6 6 86 Combinations Service Total 1 00 x Selfweight 1 00 Dead load 1 00 x Live load Service Sustained Load 1 00 Selfweight 1 00 Dead load 0 30 s Live load Strength Dead and Live 1 20 x Selfweight 1 20 x Dead load 1 60 Live load Load Only 1 40 2 Selfweight 1 40 Dead load iti 1 00
39. abular gt Punching Shear Desig e The user has the following options o Punching Shear Stress Check Result o Punching Shear Stress Check Parameters and o Punching Shear Reinforcement e Anexample of each is given in Figures 6 8 19 to 6 8 20 109 Chapter 6 ADAPT MAT 2010 RC TUTORIAL US units ADAPT x S Y COLUMN a SECTION a Y nX i Lez Load Combination Strength Dead and Live shear moment toshear to moment stress ratio tsi kei ks ks FIGURE 6 8 19 PUNCHING SHEAR STRESS CHECK RESULTS N S Y COLUMN R SECTION a Y r X L X depth length rr length ss constant pi id i i2 in 4 J 1 13E 005 1 13E 005 1 13E 005 Column 3 1 13E 005 Column 3 5 Column 4 5 Column 4 30 13 30 13 7 38E 002 30 13 3013 7 38E 002 13 00 30 13 3043 7 38 002 1 1 13E 00 1 13 005 Column 5 Column 5 Column 6 Column 6 Column 7 Column 7 1 13E 005 Column 8 1 13E 005 Column 8 Column 9 1 13E 005 Column 10 30 13 3013 7 38 002 1 13 005 040 FIGURE 6 8 20 PUNCHING SHEAR STRESS CHECK PARAMETERS In this example since the stress ratio for all columns are less than 1 shear reinforcement is not required In order to obtain a solution which requires shear reinforcement in order to display shear reinforcement output the 110 225222 3 ADAPT MAT 2010 RC TUTORIAL US units Chapter 6 Strength combination was increased to include a factor
40. are a similar report for your FLOW CHART FOR DESIGN OF MAT RAFT FOUNDATION If you do not have a vg drawing of the Yes have AutoCad ie a a TON Expertise Frepare proper layers in Autocad Simplify preprocess imported drawing a Fabrication drawing A sh op installaton drawing I 1 Refer to notes and references 61 Chapter 5 MODELING AND DESIGN PROCESS 62 This Page Left Intentionally BLANK ADAPT MAT 2010 RC TUTORIAL US units Chapter 6 Chapter 6 TUTORIAL 63 Chapter 6 ADAPT MAT 2010 RC TUTORIAL US units 64 This Page Left Intentionally BLANK ADAFE ADAPT MAT 2010 RC TUTORIAL US units Chapter 6 6 1 6 2 OVERVIEW This tutorial package 1s tailored to the needs of design engineers who are seeking to become familiar with the latest developments in design of reinforced concrete MAT RAFT foundation slab consisting of extended layers of concrete and usual resting on soft ground systems The tutorial covers in detail the process of designing reinforced concrete RC MAT foundation using the ADAPT Builder suite of software with focus on ADAPT Modeler amp ADAPT MAT Long regarded as a difficult engineering challenge designing concrete floor systems 15 greatly simplified with ADAPT Builder which provides significant efficiencies throughout the design process This tutorial 15 broken into several sessions which would
41. are modeled as beam stick elements with six degrees of freedom at each node 115 Chapter 7 ANALYTICAL BACKGROUND ADAP Unlike many other commercially available programs complete compatibility of displacement is established over the entire foundation system and among all its components For example grade beams below the foundations are modeled eccentric to the slab as they appear in real life but are solved with full compatibility of displacement at their interface with the slab equal strains in beam stem and slab at a common interface Post tensioned tendons where present are discretized into segments associated with each shell element they traverse When force calculation 1s invoked by you the force along each tendon varies as passes from one shell element into the next The advanced and unique features of ADAPT MAT have become possible due to a finite element formulation specifically developed for analysis of complex concrete structures including post tensioning Aalami 2003 7 2 2 Design The design involves 1 the calculation of design values demand 11 the comparison with allowable limits of the building code selected by the user and 11 provisions of reinforcement where applicable The design values are determined in a manner similar to an elevated slab and are dependent on the generation of design sections associated with design strips tributary regions evolving from support lines The procedure fo
42. as been successfully completed the program will display a confirmation dialogue box as shown in Figure 6 8 7 Click on Yes to save the results and close this message Design Status Design successfully completed Do you want to save the results FIGURE 6 8 7 DESIGN STATUS DIALOG BOX 6 8 5 Adequacy Check for the Design Sections e Now click on Yes to save the result and dismiss the Design Status dialog box e Open the Support Line Results Scale Toolbar Click on Display Design Sections z3 button from this toolbar The program will automatically show a toolbar as shown in Figure 6 8 8 These icons allow the user to toggle between design sections in the X and Y directions E3 Show Hide Support Lines in X direction M snow Hide Support Lines in Y direction FIGURE 6 8 8 SUPPORT LINE DISPLAY TOOLBAR e Click each of them to view support lines and design sections once for the X direction and once for the Y direction 102 ADAPT MAT 2010 RC TUTORIAL US units Chapter 6 Make a cursory review of the support line results in both directions Where design sections are shown in a green color the sections are found adequate for the specific design check selected from the Result Display Settings f tool Any section shown as a dashed pink line has not met the required code checks and 15 inadequate Typically in RC design for strength checks design sections will be shown as OK for design status green color as the p
43. ave the option to modify the height of each wall Upturned beams Beams can be modeled to be entirely above a foundation slab or partially above and partially below the slab BASIC FEATURES Chapter 2 FIGURE 2 2 6 VIEW OF A FOUNDATION SYSTEM INCLUDING THE MODELING OF WALLS AND COLUMNS 2 3 SUPPORT CONDITIONS A foundation system can be supported partially or wholly on a variety of support conditions as described below 2 3 1 Soil Support Area Foundations can be modeled to rest on more than one type of soil Each soil type will be specified with its own property and the support area it covers A supporting soil region can be extended beyond the boundary of a mat and below the openings The program will consider only the resistance of soil that is immediately below the structural members of the foundation Soil regions modeled extending beyond the boundary of a mat s structural members and within the openings will not be considered to provide support Not all the regions of a foundation system need be supported on soil You may define parts of the foundation to overhang or span unsupported lengths The soil is represented by Winkler springs for which you define the associated bulk modulus as part of your input data The unit for the soil s bulk modulus is Ib in This value typically varies between 100 to 400 pci between 0 03 to 0 12 N mm In the absence of detailed information 200 psi 0 06 N mm is a reasonable starti
44. awing o For this tutorial click No when asked if you want to change the project origin Start Point wolls ore 8 in columns are 24 in 24 in All other dimensions ore in Ft amp in 90 End Point FIGURE 6 4 2 START AND END POINTS OF CALIBRATION LINE 74 222222222 ADAPT MAT 2010 RC TUTORIAL US units Chapter 6 6 4 2 Transformation of Structural Components o Open the Transform to Structural Component Toolbar for conversion of the drawing to structural model Use the User Interface menu and click on the following Transform to Structural Component Toolbar Alternatively use menu item Build Display Modeling Toolbars to view this toolbar along with the Build Toolbar Transform to Structural Co X FIGURE 6 4 3 TRANSFORM TO STRUCTURAL COMPONENT TOOLBAR o Use menu item Settings gt Drawing gt Layers to open the Layers dialog box Click on the button Layers Off This will turn off all the layers in the drawing Click on the light bulb icon in the On Off column for the layer representing the structural columns Figure 6 4 4 to turn on only the objects in this layer while the display of other objects remain turned off Current Current_plane 0 Arc ADAPT Circle ADAPT Line ADAPT Polygon ADAPT Palyline ADAPT Test Adapt Column Adapt Dimension deek Meare ase Line Style Cancel e a ch ch ch n 2g CONTINUC 3g CONTINUC ag CONTINU New ag
45. be selected or removed from selection depending on the option chosen Select Layers E E ae OYE Line Style TEMPLATE DD REMOVE 0 CONTINUOUS 0 x CONTINUOUS UCS_ICON 9 xw CONTINUOUS New Current plane Slab Region CONTINUOUS B CONTINUOUS CONTINUOUS I CONTINUOUS All Layers On Delete Curent plane Support Line Current _ plane Column 9 Current plane Load 9 All Layers Off FIGURE 4 6 3 SELECT LAYERS DIALOG WINDOW lz Select by Type This button is used to open a dialog box Figure 4 6 4 in which one or more component types can be selected as a group For example all columns or all support lines can be selected at once To use the tool do the following o Click on the Select by Type tool The dialog box below will open o Select an entity type from the list If more than one type is to be selected hold down the Ctrl key while selecting from the list 44 USER INTERFACE Chapter 4 o Choose the selection criteria from the check boxes at the bottom of the dialog box and press OK Entities of the type chosen in the list will be selected or removed from selection depending on the option chosen xi Cancel Connector Drop Floor Domar Gridline Line Load pening Fatch load Point Load Point Support Polygon Polpline Slab Region Splitter Support Line Text Tributary Region Criteria C All f By k
46. cal gt Design Plans gt Design Strips Y direction to view generated column strips and middle strips in the Y direction as shown in Figure 6 8 4 Notice that the program will introduce intermediate support lines in between the user defined support lines identifying column strips These strips are referred to as middle strips and are generated due to the selection being made from the Criteria menu Had this item been selected as No the program would have created design strips 100 Jiiciii 3 ADAPT MAT 2010 RC TUTORIAL US units Chapter 6 associated with user defined support lines only Also notice the generation of strips where splitters were used for this example Once you have finished reviewing the designs strips you will notice a Report Mode dialog box as shown in Figure 6 8 5 Click on the Exit Reports Mode button to return back to the normal view FIGURE 6 8 5 REPORT MODE DIALOGUE BOX 6 5 4 Design the Design Sections Use the menu item FEM gt Design the Design Section s Note If the analysis results are not copied or not saved in the working directory you may receive a warning as shown in Figure 6 8 6 For that case you need to perform analysis using the FEM gt Analyze Structure menu 101 Chapter 6 ADAPT MAT 2010 RC TUTORIAL US units LAPE Solution Availability K solution available Analyze structure First FIGURE 6 8 6 SOLUTION AVAILABILITY DIALOG BOX Once the design h
47. d 0000 ket Variable Magnitude Fzz Fz3 0000 Downward load positive Moment signs follow global axis 1 2 and 3 refer to the three consecutive vertices select to specify the values of load distribution Use the arrow tool above to move the points FIGURE 3 3 8 PATCH LOAD DIALOG WINDOW An alternate method for adding loads to a model is by using the Loading menu The option of modifying load cases and combinations and adding loads to a structure is given in this menu Jld Loading Strips Material Criteria FEM Reports Help Display Loading Toolbars ag e pe Load Case Library HIE H Paint Load Line Load F Patch Load inn Line Load Wizard Ej Patch Load Wizard Load Combination Skip Pattern FIGURE 3 3 9 ADD LOAD MENU ITEM To view loads the Loading Toolbar contains a Display Loads button which will toggle load display in the main interface The Select Set View Items button contains a rooted menu allowing the user to isolate the display of both load cases and load types QUICK START Chapter 3 Select Set View Items Structural Components Finite Element Loads Item Display Render ID Dimension Label Symbol Symbol Size Font Height Point Load E a in 20 00 in Line Load E x i500 2000 in EN a sg Patch Load 1500 in ano i Gravity Lateral Special Lateral Loads All None
48. d SOVER WEW eto Snare tae aa asses ER DA De a 65 6 2 INTRODUCTION cri ud uta EB Apa pa e esca ELSE 65 6 3 DESIGN SCOPE AND CRITERIA a A 66 65 eit a baratas tib egets di reed sn tasa teorie red hub edu ts 66 GZ Material PROP Cities sese omaia ted 67 6 55 Applicable C Ode se acetates 67 0 5 4 Structural DOGU MIC MES a nta A e eu nae oue 68 0 5 Desioen LORS ei EIS eres OECD des ERR TRY eda SUCI Roues eau vas 68 6 3 0 Load Combinations and Stresses eere eiae dea et Hess nes 68 6 3 6 1 Strength Load 68 6 3 6 2 Serviceability Load 69 6 3 6 3 Initial Load 69 il ADAP LIST OF CONTENTS Content 0 9 7 MCE CONS E Mnt octets 69 C OVET 70 ct Serres erie 70 6 3 9 1 Equivalent Spring 71 6252922 SOl PTOS SITO 71 6 3 9 3 Displacement at Interface of Soil Layers 71 6594 eie diceva eiecit 71 64 GENERATION OF 3D STRUCTURAL MODEL THROUGH DWG IMPORT 73 G41 First Drawine cose aa qe e ets 73 6 4 2 Transformation of Structural Components essen 75 65 MATERIAL SOIL SUPPORT CRITERIA AND LOADINGS
49. directions The selection of an angle generates rebar layouts for those directions The Dynamic Rebar Module calculates the required reinforcement for the direction selected For this tutorial specify Library Length and to have desirable rebar length and bar orientation along global X and Y axis as shown in Figure 6 8 13 105 Chapter 6 ADAPT MAT 2010 RC TUTORIAL US units Generate Rebar Drawing Options E Load Combination Envelope Bar Length Selection Calculated Lengths Library Lengths Bar Orientation Along support lines 5 Angle from global x axis For bars along support lines in Cancel FIGURE 6 8 13 GENERATE REBAR DRAWING OPTIONS e The program will display the requirement of rebar at the top and bottom faces of the slab and or beams at all positions for the enveloped condition considering strength requirement and minimum rebar for service condition when required per code as shown in Figure 6 8 14 4 4 Ur TTE bem jU L U vo x d Lg s 2 V E zm eap n etc 3o XX EPAL L En tz DENS sia j IM PER CER 4 t Dx D L JEA gu s cm m 1 p 13 H5x EY gm dop
50. e the menu item Material gt Concrete The material dialog box for Concrete will open By default there will be one concrete already established Click on the Add button to add another concrete Y Concrete Cy 240000 zl 40 00 31754 E Colinder Sirenigih Cone 075 E FIGURE 6 5 1 CONCRETE MATERIAL DIALOG BOX Now select Concrete 1 and rename the label as Concrete Slab Specify Weight Wc 150 pcf and 28 days Cylinder Strength as 4000 psi The Modulus of Elasticity of concrete 1s automatically calculated and displayed by the program using f c and Wce the relationship as mentioned in section 8 5 1 of ACI 318 08 15 given below The user 15 given the option to override the code value and specify a user defined substitute The user can specify Wce in place of Wc which will be used only to calculate Ec value Ec Wc X 33 Nf US Ec Wc X 0 043 Nf SI Where Ec modulus of elasticity at 28 days psi MPa s ESTESE ADAPT MAT 2010 RC TUTORIAL US units Chapter 6 fc characteristic cylinder strength at 28 days Wc density of concrete 150 1b ft3 2400 kg m3 Similarly select Concrete 2 and rename the label as Concrete CW Specify weight 150 pcf and 28 days cylinder strength as 5000 psi Now click on the Select by Type icon from the Selection Toolbar Refer to Chapter 4 for additional details Select Column and Wall and click on OK This will select all columns and walls
51. ection By default all curves are displayed perpendicular to the slab surface Select this button to flip the curves into the XY plane 123 Numerical Display Select this button to display the result values for each design section along the support lines USER INTERFACE Chapter 4 n Display Min Max Values Click this button to only display the minimum and maximum result values along the support lines oS Result Display Settings Select this button to open the Result Display Settings window Display Punching Shear Design Outcome Once you have executed the punching shear design the results can be reviewed in the model by clicking on this button 4 6 9 Reinforcement Toolbar FIGURE 4 6 11 REINFORCEMENT TOOLBAR BASIC DE Generate Rebar Drawing This tool creates refreshes the generation of rebar drawing oy Open Rebar Display Options The dialog window gives you full control over the display of reinforcement Display Hide Rebar This is simply a toggle switch to turn the display of the entire reinforcement on the plan on or off Create Mesh Reinforcement This tool enables you to specify a wire mesh fabric or rebar layout over one or several areas of the floor system IN Mesh Rebar Wizard The wizard lets you define a mesh reinforcement over a specific region of slab that you select 4 6 10 Cursor Function and Operation Depending on the cursor mode the program responds differently Before starting a
52. ection s and or rotation about one or more of the principal direction s The vertical location of the line support can be below above or any other height with respect of the mat foundation Piles Piles are used where the soil 15 considered inadequate in providing the support needed for the superstructure A pile supported mat behaves essentially the same as a column supported slab since the mat and its load are supported at discrete pile locations similar to a suspended slab supported on columns There is no design contribution of the soil below the mat in providing resistance and is disregarded Pile supported mats can be best modeled and designed using ADAPT Floor Pro When using ADAPT MAT each pile has to be modeled as a point spring having the same stiffness properties as the pile it represents faa BASIC FEATURES Chapter 2 2 4 2 5 2 3 10 Voids in Soil Where there is no soil support below part of a foundation such as a foundation overhang of a light building along its perimeter due to loss of moisture in soil you do not define a soil support Transfer of force between a foundation and soil can take place only at the locations where you define soil MATERIAL PROPERTIES Each of the structural components specified such as slab regions grade beams and reinforcement have can be specified with its own material property Structural components of the same type such as two columns can each have their own different mater
53. electing the entity below the cursor inserting an entity or performing an operation at the location of the cursor The right click of the mouse with cursor on the display portion of the screen will display the window shown in Figure 4 4 1 T Exit ClaselEnd A amp ccept Pan Dynamic zoom Zoom Window zoom Extent FIGURE 4 4 1 RIGHT CLICK OPTIONS OF THE MOUSE Click on a menu item listed to perform the operation described If you right click the mouse while the cursor is outside the display screen a list of all available toolbars appears From this list you can select the toolbars you want to display TOOLS SPECIFIC TO ADAPT MAT In general the tools contained in the ADAPT Builder platform are universal to each unique program including ADAPT MAT SOG and Floor Pro A description of the most commonly used toolbars is provided later in this section The ADAPT Modeler User Manual contains detailed descriptions of all toolbars and menus located in the program general operations of the program and functions of the main menu The understanding of these functions is inherent to ADAPT MAT and it is intended that those features described in the ADAPT Modeler User Manual are inclusive of ADAPT MAT It is recommended that users familiarize themselves with this document and information pertinent to the general use of the ADAPT Builder platform ADAPT MAT contains some unique functions specific to soil supported foundations and the modeling the
54. enerated design strip calculations but retains all the information that you entered manually such as support lines and splitters This tool is generally used when you decide to modify design strips calculated by the program 49 Chapter 4 USER INTERFACE ADAP 38 Display Strip X Display Strip Y 4 6 7 Modeling Toolbar 50 Modeling Toolbar tox fe y S a TI FIGURE 4 6 9 MODELING TOOLBAR The first three tools of this toolbar deal specifically with the creation of design strips The remainder helps you to improve or correct your work For the purpose of this workshop only the first three tools will be reviewed tz Support Line You use this tool to create a new support line manually In most instances the second tool Support Line Wizard will be simpler and faster to use Generally it is recommended to use the Support Line Wizard and edit the support line it creates 1f needed Support Line Wizard This tool creates a support line automatically The support line wizard automatically generates a support line in the direction that you specify The wizard searches for possible supports over a strip specified by the band width you define The wizard detects slab edges column ends wall ends and wall center lines that are located within the band you define Once it creates a support line and displays it on the screen you will be able to edit it 1f needed In most cases it 1s simpler to use the wizard and edit 15 support
55. erminate at slab or opening boundaries Once support lines and splitters are created the program can successfully generate design tributaries and automatically create design sections Design sections are required to check the adequacy of the slab as it relates to the selected code for Strength and Serviceability requirements Punching Shear two way shear will also be checked for the slab Finally we will review the results and produce a results report 6 7 1 Generation of Support Lines e Support lines in the X direction will be drawn first Use the Support Line Wizard tool from the Modeling Toolbar A dialog box as shown in Figure 6 7 1 will be displayed Specify the intended direction of the Support Line as the X Direction e Set the band width to ft The program will scan between this width for supports columns walls or beams A support line vertex click will be created at each support The distance or length between vertices 15 known as a support line span Click on the OK button to create the support line ADAPT MAT 2010 RC TUTORIAL US units Chapter 6 Support Line Wizard Direction x Direction gt ft Band width to detect supports Length to search for supports ang f Angle for wall beam modeling 30 Degrees Wal 2 a Angle greater than CE Support Line Angle less than C Cancel Help FIGURE 6 7 1 SUPPORT LINE WIZARD Repeat the operation to create other support lin
56. es the X direction You may hit Enter to repeat last operation in the ADAPT MAT environment For the example model see Figure 6 7 1 it is possible to create the first 4 support lines from the top edge of slab in the X direction However you need to use Create Support Line tool from the Modeling Toolbar to complete support line 5 6 and 7 as they are not continuous along the full length of slab Notice also that Support Line 6 does not extend to a slab or opening boundary as all other support lines do In this case we need to use vertical splitters to generate a proper tributary region for this support line and those adjacent to it It is recommended to scan the model you are using for the tutorial and determine which support lines may require the use of splitters 95 Chapter 6 FIGURE 6 7 2 SUPPORT LINES IN X DIRECTION 6 7 2 Use of Splitters 96 e For this example the Create Splitter tool from Modeling Toolbar is used to draw two vertical splitters on each side of Support Line 6 Both splitters will extend from the endpoint of Support Line 6 to the bottom slab edge and from the endpoint of Support Line 6 vertically such that they terminate perpendicular to Support Line 4 Once you click on the Create Splitter tool you cursor will be in snap mode Use the menu item Edit gt Item s Properties to specify the property of the splitters you are going to create The Splitter dialog box as shown in Figure 6 7
57. es creates a difference between the structural systems that carries the load in each of the two load cases Once the structural systems changes superposition does not apply 118 ANALYTICAL BACKGROUND Chapter 7 This Page Left Intentionally BLANK 119
58. eyword Selection Type Refresh all selection C Add to current selection C Remove fram current selection FIGURE 4 6 4 SELECT BY TYPE DIALOG LT Select This tool selects all the entities visible on the screen Move Selection This tool enables you to move the entire group of entities that are currently selected Pick a vertex of one of the entities Move Selected Point With this tool you can move only the vertex of an entity to a new location while the positions of the remainder of the entity s vertices remain unchanged Select the entity first Then pick the vertex you wish to move Drag it to the new location The selected vertex will move independently all other vertices will remain in their original location 45 Chapter 4 USER INTERFACE 46 4 6 3 Delete Point This tool deletes the currently selected vertex of an entity Insert Vertex This tool is used to insert an additional vertex into an entity that contains multiple insertion points The new vertex 15 placed between the selected vertex and the previous vertex If the first vertex 1s chosen then the new vertex 1s added at this end To add a vertex do the following o Select the entity o Click on the Insert Vertex tool o Click on one of the entities vertices Another vertex will be added to the entity adjacent to the selected vertex Item s Properties Alt Enter This tool opens up the Pro
59. fication of modeling accuracy o Tools to define the soil spring support below the mat o Tools to apply loads on the mat o Tools enabling the user to mesh and analyze the mat o Tools used to view analysis results We will introduce and invoke each of the tools listed above one after the other in form of a quick start step by step guide QUICK START STEP BY STEP The purpose of this example is to show a step by step procedure to begin using ADAPT MAT in the modeling of a mat foundation 3 3 1 Create a Grid In the Snap toolbar select the icon Grid Settings and set the X and Y grid spacing to the desired dimension Fig 3 3 1 E Grid Settings T spacing Cancel Angle Color Made Grid Line thickness Display grid when active Display arid all the time FIGURE 3 3 1 GRID SETTINGS QUICK START Chapter 3 Building the Model Build Toolbar Use the Build toolbar to insert structural components such as slab regions columns walls beams openings drop caps panels base reinforcement or to set the vertical plane dimensions story heights If the model is started with an import of a dwg or dxf file see Section 6 4 you can use the Transform to Structural Components Transform to Structural Co va Ey 98 2 7 V toolbar to transform closed polygons to structural components Both toolbars can also be located from the Build menu at the top of screen
60. g In this mode the program can be requested to create an entity although the plane on which the entity 1s to be created 1s not displayed You must change the screen view go to View if you are in Elevation before you can create the entity in mind MODELING AND DESIGN PROCESS Chapter 5 Chapter 5 MODELING AND DESIGN PROCESS 55 Chapter 5 MODELING AND DESIGN PROCESS 56 This Page Left Intentionally BLANK ADAPT MODELING AND DESIGN PROCESS Chapter 5 5 1 5 2 OVERVIEW This section outlines detailed steps to follow 1n designing a conventionally reinforced or post tensioned mat foundation using ADAPT MAT It is assumed that those steps pertaining to post tensioning do not apply if the mat being designed 1s conventionally reinforced Depending on whether you already have an electronic file of the mat geometry or not and whether you are familiar with AutoCAD or not there are different options available to you Refer to the flow chart and the text that follows for the details DESIGN PROCEDURE The following steps are intended for completion of a full analysis and design of a mat foundation The items listed here are discussed in greater detail in the ADAPT Modeler User Manual The suggested steps for the analysis and design of a mat foundation are e Creation of the structural model e Define the soil support conditions e Validate the structural model by use of the tools for viewing analysis
61. gt Slab Region View Design Strips ef Column view Finite Elements AY wal Beam Opening ep Drop Cap Panel Oy Support Line o Splitter 93 Load OZ Point Support QD Gridline Tendon FIGURE 3 3 6 VIEW STRUCTURAL ENTITIES MENU ITEM 3 3 4 Defining the Soil Support 28 Soil supports defined as point line or area springs can be added to the model from the FEM Supports and Spring Creation toolbar Once the supports have been added to a model as 1s the case with components the user can double click on the support to open the support properties In this dialogue window the soil stiffness can be changed from the default setting Note also that line and point supports with assumed infinite stiffness can be included in a mat foundation model These tools are located on the same toolbar The definition of supports can also be generated from the Build toolbar Select Support for point and line supports and Spring Soil Supports for supports with finite user defined stiffness QUICK START Chapter 3 3 3 5 Modify Build Loading Strips Material Criteria FEM Reports Help Display Modeling Toolbars Hr d Preprocessing k Construction Aids Structural Components Rebar Support Spring Soil Support VER Spring Transform Drawing Entities k 112 Line Spring _ _ f soil Support FIGURE 3 3 7 SPRING SOIL SUPPORT MENU ITEM k k k k k Applicat
62. he adequate amount of reinforcement where necessary to meet the requirements of the design code you have selected for Strength and Serviceability For pre stressed foundations in addition to the reinforcement requirements the computed stresses must not exceed the code specified threshold If this condition is not satisfied the program shows the design sections with dashed lines in purple At this stage you must either modify the post tensioning you have specified or change other parameters of the foundation such as thickness and redo the analysis and design This process continues until the solution 15 acceptable and code specified stress limits are met To summarize 59 Chapter 5 MODELING AND DESIGN PROCESS o View outcome of code check for design sections in X direction followed by an examination of the same for design sections in Y direction o If there are no purple dashed lines the requirements of the building code you selected 1s satisfied o If there are purple dashed lines the code requirements have not been met investigate and modify the slab until a solution 15 acceptable o Execute the punching shear check if applicable o View the punching shear stress check on the screen to ascertain that the calculated stresses do not exceed the maximum allowed by code The program automatically reports these locations to you on the screen with red color and a coded note 5 2 8 Generate St
63. ial properties You define the properties of the materials to be used in your model in the Materials pull down menu and assign them to the structural components you create LOADS The complete library and options for definition of loads located in ADAPT Modeler applies to ADAPT Floor Pro and ADAPT MAT Among many options you can define point loads line loads and patch loads distributed load over a defined area anywhere on the foundation slab The loads you define can consist of concentrated forces along each of the principal directions and moments applied about each of the principal directions 2 5 1 Load Cases Each load you define is assigned to a load case This will enable you to group the loads that are associated with a common source There 15 essentially no limitation on the number of loads that you may define nor is there a limitation on the number of load cases The program comes with default load cases of DEAD LIVE and PRESTRESSING when ADAPT MAT PT is used along with several other pre defined cases The mat self weight is automatically accounted for and by default is included in load combinations for analysis 2 5 2 Load Combinations Depending on the building code you select the program will automatically generate the primary load combinations of the code The user has the 15 Chapter 2 BASIC FEATURES 3 2 6 2 7 2 8 16 option to edit default combinations and or define addi
64. in the model Now use the menu item Modify gt Modify Item Properties to open the Modify Item Properties dialog box Turn on Material located in top left corner select Concrete CW from the drop down list Figure 6 5 2 Click on OK to apply this concrete for all selected entities 1 e columns and walls To change the material for the slab region you can use same procedure to specify the Concrete Slab material Alternately double click on the slab The Slab Region dialog box will open Select the drop down for Material and ensure Concrete Slab is specified as material Figure 6 5 3 Modify Item Properties Material FEM Group Point Support Patch Load Line Load Point Load Support Line Point Spring Rebar Beam Gridline Column Drop Cap Panel Wall Slab Region Concrete Sla x Width 1200 in Depth 2000 in Concrete Slab Concrete Cw Vertical offset down positive Z offset in Changes made herein apply to all selected components Cancel FIGURE 6 5 2 MODIFY ITEM PROPERTIES DIALOG BOX 79 OE rs EF Chapter 6 General Location Properties Label Slab Region 1 Material Concrete Slab 8 00 Group Thickness FIGURE 6 5 3 SLAB REGION DIALOG BOX 6 5 1 2 Set and Assign Mild Steel Material Rebar Use the menu item Material gt Mild Steel to open the material dialog for Mild Steel Specify the value of
65. ing the applied load will be automatically accounted for by the program Thickening below slab Thickenings below a mat slab to resist punching shear below columns can be readily modeled with a column drop panel tool The program accounts for the local stiffening of the foundation slab due to added thickness as well as the resistance 1t provides for punching shear Openings Openings of regular or irregular geometry can be defined in any number and at any location e Elevator pits Significant depressions in foundations slab with perimeter walls typical of elevator pits can be modeled in the program and analyzed Chapter 2 BASIC FEATURES ADAPT a Elevator shaft model b Pads below columns FIGURE 2 2 5 ELEVATOR SHAFTS AND PADS BELOW COLUMNS AND WALLS AND ELEVATOR PITS CAN BE MODELED WITH CORRECT GEOMETRY AND 10 ELEVATION Walls and columns above foundation mats One story height of walls and columns can be modeled above a foundation system The program accounts for the stiffness of these structural components when analyzing the foundation The degree of stiffness of each of these structural components depends on the fixity defined by you at the far end of a wall or a column The default setting of the program 15 freedom to displace and rotate at the far ends of the walls and columns above a foundation The height of a wall or column above a foundation is taken to be the story height defined by you but you h
66. ion of Loads When a design code 15 selected from the Criteria gt General Analysis Design options menu the program will automatically generate multiple Strength and Service load combinations Each combination is composed of default load cases defined as Live Dead or PT when post tensioning is included in a model See Section 2 5 for additional information related to load case and load combination generation Loading Toolbar The Loading toolbar contains several tools used for the creation of point line and area patch loads Any type of load can be added for any defined load case Note that the user can add as many load cases as desired in addition to those default cases created by the program The Patch and Line Load Wizard tools allow the user to easily create loads for a selected region or slab boundary Once a load has been generated the magnitude or moment values associated with the load type can be changed by double clicking on the loading symbol and changing the value in the load properties window The group assignment and load case can also be modified using the load properties windows To select a load to modify it is helpful to view the model in an isometric top front right view 13 from the Camera and Viewports Mini Toolbar 29 Chapter 3 QUICK START FELRE E 30 General Loads Location Properties tt Label Patch Load 1 Group Group 1 Load case Dead loa
67. l and use the menu item Edit gt Item s Properties to open the same dialog box Input Fz 56 2 kip inside the General tab and go to Loads tab to input Fx 18 kip and Fy 9 kip Finally click on the green checkmark to assign the load values Once done program will remember these values for further generation s General Loads Location Properties General Loads Location Properties Loads amp 18000 Fy 3 000 k Label Point Load 2 Group Group 1 Load case Dead load v Load Fz 56 200 K Mxc 0 000 kft 0000 kft Downward load positive Moment sign follows global axis FIGURE 6 5 10 POINT LOAD DIALOG BOX GENERAL AND LOADS TABS Click on the Create Point Load icon from the Loading Toolbar Ensure that the Snap to Endpoint tool 1s activated and snap all other columns to apply this loading Where column reactions are different from each other the user needs to edit its property and change the values accordingly 6 5 4 4 Load Combinations Based on the code selected by the user ADAPT MAT automatically generates Initial Strength and Service conditions The user can add or modify any number of load combinations However please note that the program obtains a discrete solution for each load combination hence additional load combinations will result in prolonged processing time ADAPT MAT 2010 RC TUTORIAL US units Chapter 6 Furthermore for a structure like this which 15 supported by
68. l axis 1 ar C X Ges FIGURE 6 6 9 GENERATE LINE CONTOUR OPTIONS Result Display Settings Text values Iw Display text values Line contour appearance Labeled contour line every lines Spacing between contour lines One moment cantour 1 3 FIGURE 6 6 10 CONTOUR DISPLAY SETTINGS 92 222222222 ADAPT MAT 2010 RC TUTORIAL US units Chapter 6 e Finally use the menu item FEM gt Line Contour gt Display Hide Contour This will remove moment contours in the model e Now save the as MAT US ACI 03 ADM This file contains the structural model materials soil support design code rebar specification loadings with load combinations finite element mesh and analysis result 93 Chapter 6 ADAPT MAT 2010 RC TUTORIAL US units PLEBE 6 7 94 GENERATION OF SUPPORT LINES AND USE OF SPLITTERS Open the previously saved US ACI 03 if you have closed it If you have completed all steps successfully as specified in earlier section you may continue with the file you created and saved in your hard disk The model is now ready to be designed The first step 15 to create Support Lines in both X and Y directions These are required to establish design strips 1 tributary regions for the generation of design sections In some cases the use of splitters is required to generate a more refined tributary region Splitters are used when support lines do not t
69. le Long Term Pressure 2000 psf 6 3 3 Applicable Codes The design is based on ACI318 08 IBC 2009 67 Chapter 6 ADAPT MAT 2010 RC TUTORIAL US units ELAGE E 6 3 4 Structural Documents The final design should include following o Structural Calculation o General Arrangement Drawings o Loading Plans o Design Section Report o Rebar required and provided at all locations o Design Section Capacity 6 3 5 Design Loads Dead Load Self weight based on volume Superimposed Dead Load 0 04 ksf on the entire raft Line Load along the walls 1 37 kip ft along edge walls 1 7 kip ft along other walls Point Load Column Reactions 56 2 kip downward axial load 18 kip along major axis 9 kip along minor axis Live Load Uniformly Distributed 0 21 ksf No lateral loading and any other loadings are not considered in this tutorial model However one may refer to the other tutorial for further clarification 6 3 6 Load Combinations and Stresses 68 The parts and factors of the program s automatically generated load cases and load combinations are listed below All combinations follow ACI 318 and IBC 2009 stipulations 6 3 6 1 Strength Load Combinations The strength requirement for each member is established using the following factored load combinations Only for Dead Load ADAPT MAT 2010 RC TUTORIAL US units Chapter 6 6 3 7 U 1 40 x Selfweight 1 40 x Dead load For Dead and Live Load U 1 20 x Selfweight 1 2
70. likely to take four hours in total This tutorial uses the following programs of the ADAPT Builder Design Suite ADAPT Modeler 2009 or later ADAPT MAT 2009 or later ADAPT Dynamic Rebar Design M Extension Module Contact ADAPT at support adaptsoft com if you need additional information INTRODUCTION This tutorial walks you through the complete modelling analysis design and detailing of a reinforced concrete mat raft system It covers the procedure to import a 2D drawing file and transforming it to the required model During loading procedure we will use efficient options available inside ADAPT Modeler environment The tutorial concludes with the construction drawing showing general arrangements structural calculation reports and the non pre stressed reinforcement Along the way the tutorial will cover more advanced modelling and analysis topics within ADAPT MAT The tutorial 15 broken down into a number of sessions each intended to guide you through a specific aspect of design The material that follows 1s intended for a user that has some basic familiarity with ADAPT Builder The step by step procedures outlined in each section do not contain all intermediate steps 65 Chapter 6 ADAPT MAT 2010 RC TUTORIAL US units ZEE A m E 6 3 66 The raft mat system selected for the tutorial is specifically developed to demonstrate salient steps of RC MAT foundation design using ADAPT Builder Environment Its o
71. long one or more of the three principal directions with or without associated rotational stiffness The stiffness provided along the 13 Chapter 2 BASIC FEATURES FEAF 14 2 3 6 2 3 7 2 3 8 2 3 9 length of a line spring is constant Changes of stiffness along a line are defined by several lines springs each with its own stiffness Point Springs These can provide translational or rotational restraints at one or more directions at one or more locations of your choice on the foundation system You identify the location of a point spring and specify its stiffness along and about the three principal directions as part of your input data Point Supports You can define a point support anywhere at a foundation system and specify the type of fixity the selected location provides at the selected location The fixity can be translation along one or more of the principal axes and or rotation about each In addition to location on plan you define the location of the point support in the vertical direction Line Supports A line support is a more general form of a support condition in which the underlain soil can generally provide for a grade beam You start by defining the location and length of a line support Then you specify the type of support that you want the line to provide This 1s carried out by assigning restraints to the line support you have defined The restraints can be translation along one or more principal dir
72. loor system 7 Includes walfle joist construction Deng all beams using the rerpective budding code requirements for r Lx Deugn each beam a defined by user in ifs associated design sinp Supper condbon al the Fc ends of wals and columns Relan user modiicaton and ceske the rect a telected below Roller support and rotahonaly fed Frond in position and rotationally C User defined Rotation T F F 7 Include twisting moment in design of bending reinforcement Wood mesr method Dinegad the Ioesional of AX ob torsional to consider 100 00 Disregard the Icessonal sliliness of lower columns of torsional stiffness to consider 100 00 Dittegard the torsional stillness of upper columns 3 of torsional stilness lo consider 100 00 Designing Generale design section moment capacities Meshing Generate sparse mesh Generate undcem mesh FIGURE 6 8 1 ANALYSIS DESIGN OPTIONS FOR RC DESIGN e Ensure that both of the options are selected as Yes from the Conventionally reinforced only RC option The second option of minimum rebar refers to the code required reinforcement for creep shrinkage and temperature If this item is not selected the program reports the reinforcement needed to satisfy those requirements for the strength limit state of the structure only Note that for the ACI code minimum reinforcement temperature and shrinkage reinforcement as
73. lready selected Click OK to open the main program interface ADAPT BUILDER CONCRETE DESIGN PLATFORM 2 Si ES Concrete Design Structural modeling v Modeler Structure type Floor systems beam frames grid frames Select analysis method v Finite Element ADAPT Floor Fra Equivalent Frame Export Design Strip to Mat raft foundations grade beams Post tensioned Slab On Ground ADAPT SOG Design scope C RConl AC and PT Extension modules W Dynamic Rebar Design DAD v Post tensioning Fabrication Shop Drawing Impart E sport loading geometry Generic M REVIT ROBOT sTA amp DPro ETABS System of units f 5 American C MES Cancel Help FIGURE 3 2 1 A thorough description of the main graphical user interface GUI and its menus and tools can be found in the ADAPT Modeler amp ADAPT Floor Pro User Manuals You may refer to them if needed This section describes the features that are unique to the ADAPT MAT program e Getting started a description of commonly used tools enabling the creation of a model are described below 23 Chapter 3 QUICK START ADAP 3 3 24 o Create a grid providing a unique set of dimensions and guide us to create the structure o Tools to build the mat such as its geometry and other components o Tools to view the geometry in three dimensions and facilitate veri
74. ly EJ Load case Dead load 0 04 kef FIGURE 6 5 8 AUTOMATIC PATCH LOAD WIZARD Again select the slab and click on the Patch Load Wizard icon from the Loading Toolbar to specify 0 20 ksf as Live Load Line Load Generation Select all of the boundary walls located in the model if any You may select all walls by using the Select by Type 1 and then hold down the Ctrl key to de select any internal walls Click on the Line Load Wizard 1 from the Loading Toolbar to assign 1 37 k ft line loading along the boundary walls under the Dead Load condition The program should confirm the number of line loads generated Now select only the internal walls and similarly specify 2 0 k ft line loading for walls other than the boundary walls Create Line Load Automatically Load case Dead load 1 37 kft cona FIGURE 6 5 9 AUTOMATIC LINE LOAD WIZARD 83 Chapter 6 ADAPT MAT 2010 RC TUTORIAL US units A 84 6 5 4 3 Point Load Generation To apply point loads as column end reactions use the Create Point Load icon from the Loading Toolbar Ensure that the Snap to Endpoint tool is activated which will allow you to snap to the column centerline s Click on one of the columns which will add a point load without any value Double click on the point load to open the Point Load dialog box Figure 6 5 10 Alternatively you may use the Select by Type icon to select the only point load in this mode
75. n operation it is important to make sure that the cursor is in the appropriate mode 53 Chapter 4 USER INTERFACE ADAS IE Undefined 54 Creation In this mode you can select an entity displayed on the screen by placing the cross over it and left clicking the mouse Once an entity is selected its color changes There are two ways to enable Selection Pick mode Right click the mouse and select Exit Click on Selection Pick Tool In this mode the program displays the identification of an entity that the point of the arrow touches To change to this mode click on the Hint Mode Tool b In this mode the program will create an entity such as a line column or slab Place the cross at the location where you want the entity to be created and left click the mouse Detailed instruction for creation of each entity will be prompted on the User Information Bar at the bottom of the screen To enable Creation Mode left click the mouse on the tool of the entity you intend to create Then follow the instructions at the bottom of the screen In this mode the magnet indicates that the cursor is in Snap Mode and is searching to snap onto an entity The cursor will search for one or more entities Once the cursor becomes close to any of the entities or conditions it is searching for it will display a yellow sign over the location to be snapped The shape of the yellow sign displayed identifies the entity for snappin
76. n the figure above 15 the distribution of stress at points below the foundation slab From a practical point of view however a high or low value of soil pressure at a point does not reflect the likely response of the soil that is of interest to design engineer For an engineering evaluation when dealing with a reinforced concrete slab resting freely on soil one considers the average pressure over a minimum area of design significance For concrete slabs resting on common soil a minimum diameter four to five times the slab thickness should be considered In other words at the location of design check the distribution of soil stress reported below the slab should be integrated over a design significant area to determine the total force The total force over the design patch when divided over the area of the patch will yield the design stress to be compared with the allowable soil pressure for the soil Bulk modulus 100 to 200 pci 117 Chapter 7 ANALYTICAL BACKGROUND ADAPT 7 3 2 Superposition In the general case the principle of superposition of solutions obtained for different load cases does not apply to mat foundation slabs Each solution obtained for a load combination is unique since a different set of boundary conditions applies to each Even though the solutions obtained for the mat foundations are based on elastic material properties the different amount of separation of soil from the mat between any two load cas
77. ndation using ke For displacement d at any given 66 22 point soil pressure p is p ke d 66 22 The soil pressure remains same for the underlain layers It will be the same for layers A B and C shown in the figure Displacement at Interface of Soil Layers At interface A the vertical displacement 15 equal to the value determined from the analysis of the foundation slab namely 4 The reduction in thickness of layer 15 rl p kl Hence the vertical displacement of interface B will be dB d rA Using a similar procedure the displacement of the interface between other layers can be determined Numerical Example Given A foundation slab is supported on the following 71 Chapter 6 ADAPT MAT 2010 RC TUTORIAL US units ZOALAZIE EI 72 e First layer 4 synthetic material with spring constant 200 pci Second layer 24 soil with spring constant 250 pci e Third layer 7 ft of native soil with spring constant 300 pci Required Determine the equivalent soil constant for the analysis of the foundation e If vertical displacement of the foundation at a point 15 obtained to be 0 138 inch determine the force in each of the layers and the vertical displacement at the interface of each Solution The equivalent soil constant for the analysis of the foundation 15 1 ke 1 k 1 k gt 1 k3 1 2004 1 250 1 300 1 81 08 ke 81 08 pci F
78. ng point 11 Chapter 2 BASIC FEATURES JiLu i i 12 2 3 2 2 3 3 2 3 4 Compression Only Soil You have the option to limit the transfer of force between a foundation member and its underlain soil as compression only This results in separation between the underlain soil and the foundation member where tension 1s likely to occur hence no load transfer Also you can specify the soil to resist both tension and compression The soil region you define provides only up and down support For a support with capability of resisting forces in the horizontal direction and moments you will use other options of support as detailed below Soil Rock Anchors Soil and Rock anchors are designed to resist tensile forces only They are used where there 15 potential of uplift such as overturning due to high winds seismic forces or uplift from raised water table Under normal conditions support is provided by soil but when the load on a foundation results in uplift soil rock anchors will be mobilized to resist the uplift The tensile force developed in a soil rock anchor depends on the user defined stiffness In principle soil anchors are tension only point supports with specified stiffness values You will use point springs to model soil anchors The default setting of the program is that the soil anchors take only tension in the vertical direction You define their property in terms of pounds per inch of extension kN
79. of entities by opening a window around the items while the left mouse key 1s held down Double clicking on an entity opens its properties dialog box 1i Lasso Selection This tool allows you to draw an arbitrary polygon around a series of entities When the lasso 15 closed all entities located within or along the lasso perimeter are selected To use this tool do the following o Click on the Lasso Selection 1 tool o Draw segments of the polygon around the entities to be selected o Press C to close the lasso The entities inside the lasso are selected automatically tk Path Selection With this tool you can select entities by drawing a poly line through them To use this tool do the following o Click on the Path Selection tool 43 Chapter 4 USER INTERFACE ADAP o Draw the poly line through the entities to be selected o Press C to end the line The entities through which the line passes will be selected automatically Select by Layer This tool enables you to select all the entities on a specific layer of the drawing To use the tool do the following o Click on the Select by Layer tool The dialog box shown in Figure 4 6 3 will open o Select a layer from the list If more than one layer is to be selected hold down the Ctrl key while selecting from the list o Choose the selection type from the check boxes at the bottom of the dialog box and press OK The items on the layers chosen from the list will
80. onventionally reinforced or post tensioned mat foundations with or without grade beams Using intuitive and easy to use Component Technology it 1s the only solution available that also calculates the required reinforcement at all locations of the foundation automatically Using ADAPT MAT you can quickly generate a graphical model of a ground supported slab mat with or without grade beams The model can be generated using either an available DWG or file of the foundation or through user input The mat can be of any irregular shape and subject to any kind of loading from above Using an adaptive meshing and finite elements the program analyzes the mat and determines the location amount and length of all the reinforcement needed by computation Where applicable under horizontal loading or moments the program accounts for the separation of a mat from the soil 7 43 STRUCTURAL MODELING 7 3 Analysis The analysis processor of ADAPT MAT is based on the finite element formulation developed and implemented in the ADAPT Builder platform with some modifications to cover the features that are specific to mat foundation analysis The program uses almost entirely well proportioned quadrilateral flat shell elements with bending and membrane degrees of freedom Details of the formulation are given in the ADAPT Floor Pro User Manual and its references Walls are also represented by the same type of shell elements Beams and columns
81. or DXF drawing your first choice is to transform the items on the imported drawing directly to structural model 41 Chapter 4 USER INTERFACE ADAS 42 The items shown on the imported drawing are simply lines graphics The process of conversion is to 1 pick an item on the drawing such as a column and 2 click on the associated structural component tool Transform to Column in order to convert it to a structural component Transform Polygon Only items that are in form of a closed polygon can be picked and converted directly into structural components Not every column or opening in the imported structural drawing 15 drawn as a closed polygon 7 Transform Slab Region This button is used to transform a polygon closed polyline to a slab region The tool operates in the same manner as the Transform Column gt tool gt 1 Transform Column This tool is used to transform a rectangle polygon or circle to a column To transform a polygon rectangle into a column do the following o Select one or more rectangles that are made up of polygons o Click on the Transform Column tool All selected entities will be transformed into columns with the same dimensions as the rectangle or circle Transform Wall This button is used to transform a rectangle closed polyline into a wall The tool operates in the same manner as the Transform Column f tool gt Transform into Several Walls When a polygon represents
82. or a vertical displacement of 0 138 inch the soil pressure 1s P ke d 81 08 0 138 11 19 psi 1611 psf Using Winkler foundation the pressure on all the underlain layers will be the same Vertical displacement at interface of soil layers Displacement at layer A da 0 138 inch Compression in thickness of first layer r p k 11 19 200 0 056 inch Displacement at layer B dg da 0 138 0 056 0 082 inch Compression in thickness of second layer 11 19 250 0 04476 inch ADAPT MAT 2010 RC TUTORIAL US units Chapter 6 Displacement at layer C dc dg 0 82 0 0447 0 0373 inch Compression in thickness of third layer r3 p k3 11 19 300 0 0373 inch Displacement at layer D dp dc r3 0 0373 0 0373 0 00 inch No displacement value at interface D agrees with the assumptions of the example 64 GENERATION OF 3D STRUCTURAL MODEL THROUGH DWG IMPORT The steps to follow for the generation of a 3D structural model of the floor system through import of a drawing file are detailed below After the initial drawing has been transformed into a structural model the steps to import a revised drawing are outlined The descriptions of each step are general and should be applied to any model used as an example or tutorial To request the specific DWG and ADM files for the model used in this text please contact our support staff at support adaptsoft com 6 4 1
83. pen Layers dialog box Click on the button Layers Off And this time turn Layers Off and turn on that layer representing structural slab layer Figure 6 4 4 to display only the polygon representing the slab region s o Select the polygon s and use Transform Slab Region icon from the Transform to Structural Component Toolbar to convert the polygon to a slab The slab will be placed as the Current plane Slab Region layer o Finally open the Layer dialog once again You may also use the Layers Setting icon from Settings Toolbar refer to Chapter 4 of this document This time turn Layers Off while turning on only the layer representing any walls o Select all the polygons representing walls and use the Transform Wall icon from the Transform to Structural Component Toolbar to convert all polygons as walls Walls 222222222 ADAPT MAT 2010 RC TUTORIAL US units Chapter 6 6 5 will be placed in the Current plane Slab Region layer walls will be Upper Walls and will be placed under the Current plane Wall layer Now use the Select Set View Items icon amp from the View Toolbar Alternatively you may use menu item View Select Display Item This will open the Select Set View Items dialog box By default the Structural Components tab will be open Turn on the display of Slab Region Column and Wall as shown in Figure 6 4 6 and click on OK This will display all structural objects in the screen Select
84. perties dialog box for the selected entity The properties may then be edited as specified in other parts of this manual 18 Group Selection This tool creates a block containing all entities currently selected The block may then be dragged as one unit across the screen Explode Block This tool breaks down a previously created block into its component It also works with blocks of imported DWG or DXF files Camera and Viewports Toolbar f 8 6g m cU ma gm qq IIT FIGURE 4 6 5 CAMERA AND VIEWPORTS TOOLBAR This toolbar is used to display different views of the model zoom in or out pan and show multiple port views of the structure The tools on the toolbar are self explanatory The hint text associated with each tool provides additional information The following describes several of the less commonly used tools lt 7 Redraw This button clears and then re draws the entire display The following buttons display the model from different angles USER INTERFACE Chapter 4 amp Top View Left View amp Front View I Top Front Right View this shows isometric view of the model Other tools are Zoom Window Zoom Extents 8 Zoom In Zoom Out 2 Dynamic Zoom ze Dynamic Pan Undo Zoom Pan Redo Zoom Pan Single Viewport Two Vertical Viewports 4 6 4 Settings Toolbar FIGURE 4 6 6 SETTING TOOLBAR This toolbar is used to set up the Universal Coordinate System line types colors
85. pi J E p E Sais Fro as 0 E zi il E E a p E VIP 2 mu e m rec J oe ui o L Ah E EXP Fa 5 F3 5 Ax x p E ir A 17927 9 o c TO x 7 amp w ds S m z a c amp wex e rie Use the Reinforcement Toolbar as described in Section 4 6 9 of this document to display hide rebar object in different layers and different directions 6 8 7 Specify Base Reinforcement and Re design e t is often impractical and uneconomical to provide a design or rebar layout showing different sizes and spacing of rebar at different 106 ADAPT MAT 2010 RC TUTORIAL US units Chapter 6 positions for construction In review of the initial rebar layout for this tutorial model it 1s 1mportant to consolidate size and spacing for groups of bars and determine a uniform rebar mesh both the top and bottom layers that will satisfy the initial requirement Once this 15 done the slab can be redesigned Select the slab and click on the Mesh Reinforcement Wizard icon from the Reinforcement Toolbar A dialog box as shown in Figure 6 8 15 will be displayed Specify the layer of reinforcement you are going to define as Bottom and use the Bar size option For this example specify 6 10 in c c in both the directions Click on the Create button to add this rebar as user defined base reinforcement Not that if you are u
86. point with the endpoint of the column The center point of the drop cap 15 moved to the center point of the column The connection of column and cap makes sure that the complete cross sectional area is taken into account at the support The resulting offset 1s automatically calculated Connect Support Lines to Columns and Walls Use this tool to connect the existing support lines to walls and columns Support lines have to be connected to the endpoint of a column or the both endpoints of a wall to account for them fully in the design stage of your work Connect Beams to Columns and Walls This tool establishes the snapping connection between all existing beams and adjacent walls or columns where beam ends are adjacent to a support but are not snapped to it While the program can handle a beam that terminates short of a column for proper treatment of beams that are connected to columns you should use the Snap option This tool will search for such instances in your model and will establish the connection Support Lines Extension This tool extends all existing support lines to the edges of the slab Use this tool if you created a support line manually as it 1s likely you missed snapping its ends to the slab edges If the distance of the support line end to a slab edge is more than the program s tolerance you must do the connection manually LI Align Structural Components This tool improves the quality of your modeling You can automa
87. r creation of support lines and design sections 1s explained in detail in the ADAPT Floor Pro User Manual The important point to note is that for each design section the builder platform determines the design values from the equilibrium of the finite element nodes as opposed to the common practice of using the integration of stresses along a cut at the section As a result accurate design values are obtained for a relatively coarse finite element mesh see ADAPT Technical Note TN302 Evaluation of Design Values at Design Sections Using ADAPT Builder Platform 7 5 MISCELLANEOUS TOPICS 7 3 1 Soil Pressure In addition to the values reported for slabs stresses moments etc similar to ADAPT Floor Pro the program also reports the distribution of 116 JRLRLLETL ANALYTICAL BACKGROUND Chapter 7 soil pressure below a slab as indicated in Figure 7 3 1 The following in the interpretation and evaluation of soil pressure is noteworthy service Stress 1 Contour 0 001 ksi J Maximum Value 0 000 000 ksi 0 000 0 000 0 000 ft Unit Minimum Value 1 292 002 ksi 9 593 73 340 2 750 ft 1 002 ksi 4 e Dy 0 09 0 17 FIGURE 7 3 1 EXAMPLE OF THE DISTRIBUTION OF SOIL PRESSURE BELOW A MAT WITH FULL SOIL MAT INTERFACE CONTACT 0 26 0 34 0 43 0 52 0 60 0 69 0 78 0 86 E 0 95 1 03 1 12 gt 1 29 The raw data obtained from a finite element analysis as shown i
88. r the first analysis it is recommended to view the results FEM Process Toolbar i graphically From the FEM Process Toolbar El Bb HE 727 us select the View Results tool tam to open the ADViewer module tle manual model ady ADViewer File Edit User Interface Settings Tools Help 8a m 8 mggggg89usg amp E WW fs ts 2 Rezulta Deformation gt Z Translation 9 X Translatian q gt Translation 9 Global Translation Slab Actions only gt Soil Pressure FIGURE 3 3 11 RESULTS DISPLAY OPTIONS IN ADVIEWER MODULE At the left hand edge of the AD Viewer module the user can select the Result type e g Deformations Slab Actions Soil Pressure etc along 32 QUICK START Chapter 3 with the load combination for which the results type 15 to be viewed The individual structural and analysis components and component groups can be displayed from the same menu A thorough description of the tools located in ADViewer can be found in Chapter 9 of the ADAPT Floor Pro User Manual These tools are equally applicable to ADAPT MAT as well as ADAPT Floor Pro and are universal to the ADAPT Builder Platform It is recommended for the user to use this document in conjunction with the ADAPT MAT User Manual when beginning use of the program and as a ready reference 33 Chapter 3 QUICK START 34 This Page Left Intentionally BLANK ADAPT USER INTERFACE Chapter
89. re indeed a faithful representation of your requirements before proceeding with detailed analysis and design The steps are o Mesh the structure o Analyze the structure for an arbitrary concentrated load in the central region of the mat and or self weight o View the deflected shape of the structure under self weight and determine if the results look reasonable in shape and magnitude based on engineering experience and judgment Complete and Finalize Input Data o Add post tensioning tendons as required if the structure is post tensioned MODELING AND DESIGN PROCESS Chapter 5 5 2 5 5 2 6 5 2 7 o Review and finalize the design criteria including material properties analysis design options reinforcing bar selections and design code o Specify reinforcement mesh to be included in your design if any o Define additional load cases or loads if necessary o View the program generated load combinations and edit if necessary Perform Analysis o Analyze the structure Prepare to Design o Create support lines o Generate design sections automatically o Review the generated design strips If necessary modify the support lines and use splitters to refine the design strips created Conclude your modifications with a re creation of automatically generated design strips and sections Validate the Code Compliance of the Design If the foundation system 15 not pre stressed the program automatically provides t
90. reof The main difference in modeling a foundation slab in ADAPT MAT as compared to an elevated slab in ADAPT Floor Pro 1s the definition and application of an area soil spring line spring or USER INTERFACE Chapter 4 4 6 point spring as supports below the slab and or grade beams See Section 2 3 for a more detailed description of each support type available in ADAPT MAT vertical components are by default modeled above the reference plane or top of the slab level In ADAPT MAT the user only has the option to create offsets for components modeled above as shown in Figure 4 5 1 Column vj General Location FEM Properties Reference Flane Upper Column Offsets Vertical top oog in Vertical bottom 000 m FIGURE 4 5 1 VERTICAL OFFSET OPTIONS IN ADAPT MAT In the reporting of slab actions ADAPT MAT reports Soil Pressure as a slab action from FEM gt View Results ADViewer Also note that the option to active the vibration module in ADAPT Builder 15 not active when ADAPT MAT 15 used This is typically activated from Criteria Analysis Design Options and combinations input from FEM Vibration GENERAL TOOLBARS 4 6 1 Transform to Structural Components Toolbar You will use this tool if you start with a DWG or file and plan to convert the items shown on the drawing to Structural Components for your model FIGURE 4 6 1 TRANSFORM TO STRUCTURAL COMPONENT TOOLBAR Once you import a DWG
91. rogram will design the required amount of reinforcement to satisfy the demand actions For serviceability it 15 important to make a check for deflections in each direction Select Service Total Load from the pull down box in Result Display Settings as shown in Figure 6 8 9 Set the result option to Deflection and set the maximum allowable to L 240 Select Apply and then OK From the Support Line Results Scale Toolbar select the Display Graphically tool making sure that the support lines in either direction are turned on and the program will report the deflection ratio X L for each span as shown in Figure 6 8 10 Note also that the deflection value for each design section is shown The same display of results can be produced for any action 1 e moment shear axial when the result to be displayed 1s set for Action and the Display Graphically tool 1s active Note When the program is opened in RC and PT mode additional results will become active in the Result Display Settings dialogue box The program will give the option to report top and bottom fiber stresses for any service combination as well and average precompression Result Display Settines Service Select results to display Status f Action Bending Moment im Deflection Maximum allowable 240 Cancel FIGURE 6 8 9 RESULT DISPLAY SETTINGS DIALOGUE BOX 103 Chapter 6 ADAPT MAT 2010 RC TUTORIAL US units L 11883 L7956
92. ructural Drawings The program provides you with the option to generate structural drawings with detailed reinforcement and post tensioning when applicable information for construction These tools are described in greater detail in Chapter 10 of the ADAPT Floor Pro User Manual The information contained in this reference applies equally to ADAPT MAT and ADAPT Floor Pro as part of the ADAPT Builder platform o Foran expeditious outcome of your design use the rebar generation tool to view rebar along design strips the X and Y directions The program will show required enveloped reinforcing for the top and bottom of the slab and or beams o Review the generated reinforcing and edit the size orientation number and length of the bars if needed o Add any reinforcement that you consider necessary to complete the detailing of the structure o View modify the font size and line properties of the drawing suitable for the size of drawing DWG that will be exported to a CAD format o Export the drawing to AUTOCAD for production 5 2 9 Generate Structural Calculation Reports Refer to Chapter 11 of the ADAPT Floor Pro User Manual This document contains a detailed explanation of Reports that can be produced 60 3 o MODELING AND DESIGN PROCESS Chapter 5 A i 5 Rebar drawing as ae project by both ADAPT MAT and ADAPT Floor Pro along with a sample report Using this as a guide or reference prep
93. ructural components that can be modeled and handled by the program as part of a foundation system e Slab regions a foundation mat can consist of one or more slab regions each with its own shape on plan and its own thickness The slab regions can have different elevations creating steps either at the top or bottom of the foundation system FIGURE 2 2 1 VIEW OF A MAT FOUNDATION CONSISTING OF MORE THAN ONE SLAB REGION WITH STEPS BOTH AT TOP AND BOTTOM e Grade beams Grade beams can be in any number any dimension and orientation Grade beams can be standalone or be part of a foundation slab If they are part of the foundations slab their structural interaction with the slab in resisting the applied loads is automatically accounted for in the analysis and design steps of the software Further the program recognizes the elevation of the grade beams with respect to the foundation slab in both its analysis and design stages Chapter 2 BASIC FEATURES FIGURE 2 2 2 VIEW OF A FOUNDATION SLAB WITH INTEGRATED GRADE BEAMS FIGURE 2 2 3 PLAN OF A FOUNDATION SYSTEM WITH ISOLATED FOOTINGS AND GRADE BEAMS BASIC FEATURES Chapter 2 a d dd 4 FIGURE 2 2 4 VIEW OF A FOUNDATION SYSTEM WITH ISOLATED FOOTINGS GRADE BEAMS AND FOOTINGS BELOW WALLS e Pile caps Pile caps can be modeled either in isolation or as part of a foundation mat When integrated with the foundation mat their interaction with the mat in resist
94. ructure Like ADAPT Floor Pro the outcome of the analysis 1s in the form of displacements forces and moments When post tensioning 1s present in a model the program will report stresses at the top and bottom fibers of the mat ADAPT MAT both RC and PT versions generate and report the distribution of soil pressure below the mat and grade beams service Stress 1 Contour 0 001 ksi J Maximum Value 0 000 000 ksi 0 000 0 000 0 000 ft ven Minimum Value 1 292e 002 ksi 9 593 73 340 2 750 ft 10 006 0 00 0 09 0 17 0 26 0 34 0 43 0 52 0 60 0 69 0 78 0 86 FIGURE 2 8 1 EXAMPLE OF THE DISTRIBUTION OF SOIL PRESSURE BELOW A MAT WITH FULL SOIL MAT INTERFACE CONTACT 17 Chapter 2 BASIC FEATURES PHI EUH a deflected shape b soil pressure FIGURE 2 8 2 DISTRIBUTION OF SOIL PRESSURE The example above shows a the displacement of a foundation mat under a central concentrated load and overturning moments on the walls and b the uplift soil foundation separation at the tip of the walls due to the distribution of soil pressure 2 9 DESIGN ADAPT MAT carries out a design of the mat slab by performing code checks prescriptive of the selected building code Where required the program determines and reports reinforcement from the library of bar reinforcement as defined by the user or bar sizes of your choice The program checks both service SLS and strength ULS requirements of the
95. s shown below The Y direction splitters need to be associated with Y direction support lines Make sure that the splitters properties reflect this FIGURE 6 7 5 SUPPORT LINES AND SPLITTERS IN X DIRECTION Now save the file as MAT US ACI 04 ADM This file contains the structural model materials soil support design code rebar specification loadings with load combinations finite element mesh analysis result support lines and splitters 6 8 PRODUCE AND REVIEW DESIGN RESULTS Open the previously saved US ACI 04 if you have closed it If you have completed all steps successfully as specified in earlier section you may continue with the file you created and saved in your hard disk This model 15 ready to proceed for design 6 5 1 Review Analysis Design Options 98 Since the model was opened under the RC only mode Conventionally reinforced only the user can specify to automatically generate column and middle strips Click on the menu Criteria to open the dialog box shown in Figure 6 8 1 Go to the Analysis Design Options tab ADAPT MAT 2010 RC TUTORIAL US units Chapter 6 ET ES Drewa ash Prefered Reinforcement Sie and Malarial Shear Design Options Bear ceris Design Code Fieinicrcemenit Bar Length Reba Minimum Cover Rebar Round Up Spacing Options General analyriz dezign oplions precietced and convenhonady reinforced Regular f
96. selected building code The reinforcement report of the program includes the quantity position and length of each bar in plan ready to be used in a structural drawing Where post tensioning is present the program provides a detailed stress check as required prescriptive of the selected building code The stress checks can be reported both graphically and in tabular format 2 10 GENERATION OF DRAWINGS The reinforcement plan generated automatically by the program can be readily exported to either a DXF or DWG file format that can be used to combine with the remainder of your work in a construction drawing 18 BASIC FEATURES Chapter 2 2 11 LINK WITH 3RD PARTY PROGRAMS AND ADAPT DATA EXCHANGE If the foundation slab you design forms part of a multi story building for which you have developed an independent model in a commercially available program and you have the results of the loads from the superstructure there are several ways to facilitate the transfer of this information to ADAPT MAT as applied load e The common method is to simply enter the load in the program using the loading toolbar This is referred to commonly as the manual method of input Loads from other software can be formatted into the program s data exchange file and be imported to ADAPT MAT The program can read and import loads if the information 15 formatted according to ADAPT s Data Exchange File Details of this file are given in Chapter 12 of the
97. sing a different slab for the tutorial determine what spacing and size of reinforcement is required as mesh rebar to satisfy the initial reinforcement output from the program Create Mesh Reinforcement Automatically C Top Bottom CGS CGS1 11 00 in CGS1 CGS2 centroid of steel in CGS2 Direction 1 and Direction 2 from the 1 50 IN concrete surface Mesh reinforcement selection Mesh reinforcement specification Area Bar size USA C MKS Reinforcement in 1 1 direction Reinforcement in 2 2 direction Size Size Dia in 6 0 75 0 440 v 6 075 0 440 o c 6 10in o c Spacing 1 0 00 in Spacing 10 00 in Orientation Angle from global axis to mesh axis 1 1 10 degrees Help CN FIGURE 6 8 15 AUTOMATIC MESH REINFORCEMENT DIALOG similarly add 5 9 9 in c c as Top base reinforcement or what 15 required for the model you are using for this tutorial After introducing new base reinforcing the slab needs design sections need to be redesigned and the reinforcement layout must be generated again from the FEM menu The program will produce a new rebar drawing and display any additional rebar to the base reinforcing where required as shown in Figure 6 8 16 107 Chapter 6 ADAPT MAT 2010 RC TUTORIAL US units ADAFE FIGURE 6 8 16 REBAR IN EXCESS OF BASE REBAR Use the Display Hide Rebar E tool from the Reinforcement Toolbar to turn off
98. the Snap Settings dialog box where all snapping features may be selected or deselected Snap to Vertices of a Component Using the previously described tools you will not be able to snap arbitrarily to the vertices or edges of structural components such as a beam Since a structural component that is displayed as solid 1s defined by its insertion points the insertion points will not necessarily be the vertices or edges of the entity By clicking on the above tool you can make the vertices and edges of all the structural components of your project capable of being snapped to Note Caution should be used when working with this tool In order for a structural component to be correctly accounted for in most instances it must be connected to other structural components through its insertion point That is to say the components must snap together at their insertion points 1 Create Draw Orthogonal This tool forces the entity being drawn created to be positioned along either the X axis or Y axis Model Design Strips Toolbar Model Desi X FIGURE 4 6 8 MODEL DESIGN STRIPS TOOLBAR Generate Design Strips This button is used to create the design strips automatically It concludes by generating as many design strips as support lines created by you taking into account the splitters that you may have used in order to impose your preferences Discard Strips Modeled This tool erases the data of the last automatically g
99. the display of all rebar from the screen 6 8 8 Punching Shear Check e Use the menu item FEM gt Punching Shear Check to perform a check of punching two way shear for this slab The program will show the following dialog when done builder 1 1 Operation successfully completed FIGURE 6 8 17 PUNCHING SHEAR CHECK COMPLETION DIALOG e From the Support Line Results Scale Toolbar click on the Display Punching Shear Design Outcome icon to view the results on screen The Numerical Display icon must be active to view the stress ratios for either local axis r or s direction There are 4 cases the program can report for design status They are as follows o OK calculated stresses are below allowable stresses o Reinforce calculated stresses exceed allowable stresses and design code requires reinforcement o Exceeds Code design code requirements not satisfied o NA punching shear design is not applicable 108 JiLiiiiti ADAPT MAT 2010 RC TUTORIAL US units Chapter 6 e The punching shear results for this model are shown in Figure 6 8 18 FIGURE 6 8 18 PUNCHING SHEAR DESIGN OUTCOME e Further information related to punching shear including design parameters actions actual stress from shear and moments and allowable stress is included in the tabular output The following is a description of how to generate this output e From the menu select Reports gt Single Default Reports gt T
100. tically adjust the location of a wall or column that you have drawn to line up with the face of slab 51 Chapter 4 USER INTERFACE JEA E 52 4 6 8 Support Line Results Scale Toolbar Support Line Results Scale Toolbar Fn FIGURE 4 6 10 SUPPORT LINE RESULTS SCALE TOOLBAR Design results can be viewed graphically by using this toolbar Results for actions stresses precompression balanced loading deflection and punching shear can be viewed graphically in the main screen Ay Display Graphically Select this button to display those results for each support line that are selected in the Results Display Settings window Display Design Sections Click this button to display the design sections for all support lines As soon as this button is selected a floating toolbar is displayed that allows you to toggle between the display of support lines in the X and Y direction Scale Down Values Use this button to scale down values for any curves that are displayed along the support lines tll Default Scale Values In case where curves are displayed and maxima are too large to fit use this button to scale the curves back to a default scale Scale Up Values Use this button to scale up values of any curves that are displayed along the support lines ml Scale Up Values Use this button to scale up values of any curves that are displayed along the support lines Perpendicular Proj
101. tional load combinations There 15 practically no limit on the number of load combinations you can define In addition to reporting the outcome of each load combination the program has the ability to determine and report the envelope of the analysis results of the load combinations you define BASE REINFORCEMENT ADAPT MAT allows the user to pre define layers of reinforcement at any depth in the slab The reinforcement 1s referenced from the top or bottom of the slab and the user is prompted to enter the cover from the top or bottom reference plane This is known as base reinforcement in the program The reinforcement can be in one or two orthogonal directions that you define The program considers base reinforcement in the analysis and design and reports the necessary reinforcement in addition to pre defined base reinforcement The base reinforcement you define can be expressed in terms of 1 bars at given spacing regular mesh or i1 reinforcement areas per unit width of the slab 111 or isolated single or spaced bars with given length size and location iv or a combination of one or more of the above types Different regions of the mat can be assigned different reinforcement In other words you can define different mesh reinforcement specifications for different regions in the mat POST TENSIONING ADAPT MAT features the entire capability of prestressing options that 15 available in ADAPT Floor Pro This includes full flexibilit
102. tions and loads using a state of the art 3D modeling and Finite Element Technology and designing in accordance with the US and major international building codes Following a short glance at some of the features of the program that are described below itis recommended that you go through the section on Quick Start to familiarize yourself with the operation of the program Next follow the tutorial before you start your design project Since this program forms a part of the ADAPT Builder suite the general graphical interface and modeling techniques are described in the ADAPT Modeler and ADAPT Floor Pro User Manuals This User Manual forms part of the ADAPT MAT software package It is recommended that you keep the manual handy and refer to it when needed If you are already familiar with ADAPT Floor Pro you may skip the section on Quick Start and Modeling and Design Process since the two programs use essentially the same interface modeling and design process Chapter 1 OVERVIEW This Page Left Intentionally BLANK ADAPT BASIC FEATURES Chapter 2 Chapter 2 BASIC FEATURES Chapter 2 BASIC FEATURES This Page Left Intentionally BLANK 2225223223 BASIC FEATURES Chapter 2 21 OVERVIEW This chapter explains the basic features of the program 22 GEOMETRY A foundation mat or raft as it is also referred to can be faithfully modeled as it is intended for construction The following describes the st
103. verall dimensions are approximately 164 x 90 feet The project data for this tutorial has been generated in US units This tutorial is based on ACI 2008 including provisions from IBC 2009 However where the code is mute provisions from TR 43 Canadian and other building codes are referred However note that the bulk of material presented in this tutorial applies to the majority of building codes included in the software such as EC2 IS Australian Canadian and 58 110 Items such as allowable stresses load combinations and associated factors will change depending on the code you wish to use for future designs DESIGN SCOPE AND CRITERIA 6 3 1 Structural Layout This outlines the criteria to be used for the structural engineering design of a typical mat system Fig 6 3 1 of the subject matter project FIGURE 6 3 1 TYPICAL REINFORCE CONCRETE MAT SYSTEM The concrete outline and the general structural plan with key dimensions are shown below s ESTESE ADAPT MAT 2010 RC TUTORIAL US units Chapter 6 walls are in All columns are 24 in X 24 in other dimensions ore in t amp in 90 FIGURE 6 3 2 GENERAL STRUCTURAL PLAN US 6 3 2 Material Properties Concrete Weight 150 pcf Cylinder Strength f lt at 28 days 4000 psi slab 5000 psi column amp wall Creep Coefficient E Non pre stressed Reinforcement Yield Strength 60 ksi Modulus of Elasticity 30 000 ksi Soil Allowab
104. y in defining tendon layout post tensioning type un bonded or bonded and stressing operations The ADAPT Floor Pro User Manual Chapter 5 contains a detailed description of tendon modeling in the ADAPT Builder platform ANALYSIS Unlike the standard conditions of suspended slabs the analysis of a mat foundation can be an iterative process Where there 15 likelihood of separation of soil from the foundation mat an iterative solution 1s required in order to determine the location and extent of soil foundation separation The analysis process 1s initiated by assuming full contact of a mat with underlain soil During each iteration the program eliminates the regions of the soil mat contact where uplift occurs until full equilibrium of the entire structural system Heisei E BASIC FEATURES Chapter 2 through transfer of compressive force between the mat and its underlain soil 15 achieved During each iteration the program re generates the stiffness matrix of the structure and obtains a solution For this reason and the fact that 1n such conditions superposition of load cases does not apply the analysis of mat foundations with potential of uplift takes longer to achieve To reiterate difference between the analysis of a mat foundation and an elevated slab 1s that where uplift occurs the principle of superposition of solutions does not apply since each solution with uplift relates to a different structural boundary condition of the st

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