Beam Detailing -V1.1- User Manual -English
Contents
1. v ee a D Cees Figure 16 Beam Detailing Generator user interface Beam Detailing Generator Tools Risa 3D ETABS SAP 2000 beam beam Project Directory C Beam Detailing Manual ETABS _ beam 3 File 1 Elements Design and Connectivity File C Beam Detailing Manual ETABS Manual Example xml beam beam jbeam 6 lt lt Generated Files _ beam 7 _ beam _ beam zF CJ LLLI ETABS _ beam beam_Manual Example _ beam_out_xml2txt Copy _ beam_out_xml2tct I ERRORES Manual Example Plan_Beam_Detailing Plan_Generator Generate Figure 17 Reading the XML file and generating input files ETABS When you receive the message Done It means the files have been generated properly Generated files are 16 a Beam Detailing Package for ETABS and SAP 2000 e Different text files with different numbers beam 01 txt beam 02 txt etc each of these files corresponds to one of the detected beams in the selected floor BDG detects the beams with tolerance angle equal to 15 degree This means any elements that have less than the tolerance angle will be collected as they are elements Micro beams in the mega beam The one will be detailed later beam 01 txt beam 02 txt etc e Plan Generator out This files includes the geometry of the selected floor e Plan Beam_Detailing out This file includes the design reinforcement for all the detected beams in the2. ccc ecessseeeseeesesesesseesseseseeseseeseeeeeeeeeeeegs 10 Figure 5 Selected tables in the table set ETABS 0 0 ccecccccecceeeeeeeeseeeeeeeeeeees 10 Figure 6 Selected floor in interest to export the tables ETABS eee 11 Figure 7 Change the units of the table set ETABS cece eeeeeeeeeeeeeseeeeeeeeeeeees 11 Figure S Export tbe XAML TETE TA BS asennan tienda neassadeitoadseseuavieeel 12 Figure 9 Save the XML HMeEJETABS rronte eE EE E 12 Figure 10 Selected floor in interest to export the tables SAP 2000 eens 13 Figure 11 Change the units to mm SAP 2000 ssssnssssssssssssssssssssssssssssssssssssssssssssssss 13 Figure l2 Selected tables SAP 2000 unra e atateante 14 Figure 13 Display all the tables SAP 2000 sesssctsenetieurewie reaver aaa 15 Figure 14 Save the tables in txt format SAP 2000 ccccccccceccccceceeeeeeeeeeeeeeeeeeeees 15 Figure 15 BeamDetailing Shortcut cccccceeeeeseeeeeeseeseseseeeeeeseeeeseeeeeeeseesseeeseeeeeeegs 16 Figure 16 Beam Detailing Generator user interface issstvivssc acre ie elesliess 16 Figure 17 Reading the XML file and generating input files ETABS ee 16 Figure 18 Reading the TEXT file and generating input files SAP 2000 I7 Figure 19 Load Beam Detailer for ETABS and SAP in AutoCAD secsec 18 Figure 20 Beam Detailer user interface c ccsssssssssssssessssesesesseeeeseeee
3. Note All the slab elements horizontal shell elements must be deselected before continue to the next step This deselection is very important and especially in the case when SAP model has already a wall elements This step must should be done for all SAP models but not for ETABS models 4 Change the units to mm by scrolling the unit bar at the bottom right corner Lap epee ee a oe Mi nae LTV I i i bh Noh j F 4 aa 4 a RE r GLOBAL KN m Figure 11 Change the units to mm SAP 2000 5 Keep on selecting the elements gt Display gt Show Tables gt The following tables must be selected gt Modeling definition s Prosperity Definition e Frame Section Prosperities gt v Frame Section Prosperities01 General e Area Section Prosperities gt v Frame Section Prosperities Oo Connectivity Data e Joint Coordinate v Joint Coordinates e Object Connectivity v Connectivity Frame v Connectivity Area 13 e e L2 i Ipeam Detailing User Manual for ETABS and SAP 2000 Frame Assignments e Frame Item Assignments v Frame Sections Assignments v Frame Local Axes Assignments Area Assignments e Area Item Assignments v Area Sections Assignments gt Design Data Concrete Frame e Concrete Summary Data v Concrete Design 2 Beam Summary Data ACI 318 11 M MODEL DEFINITION 8 of 60 tables selected eat B anei lanea H O System
4. Modifiers Concrete Column Shear Envelope Frame Sections Shell Assignments Diaphragms Concrete Column Summary ACI 318 11 Frame Sections Summary Shell Assignments Pier Spandre v Frame Sections m _ Shell Assignments Floor Mesh Options h Concrete Column Rebar Data E Structure Data Concrete Beam Shear Envelope Concrete Beam Summary ACI 318 11 B a es Analysis Concrete Joint Envelope Sections i r Shall Gactinne Summans v Design Concrete Joint Summary ACI 318 11 f 2 al ae Table Set Name Beam Detaiing C Show all possibletabies I rae oe nap Beam Dealing INOW F OOROOUS Concrete Beam Flexure Envelope v Show all possible tables Show all possible tables HI Table Set Name Beam Detailing Figure 5 Selected tables in the table set ETABS Note In the case where some tables are not available to select such as Brace connectivity Shell sections Walls Frame assignments Local Axes Shell assignments Sections This means that 10 a Beam Detailing Package for ETABS and SAP 2000 the models doesn t have brace or wall elements or the local axes are not modified for any element in the whole model In this case the user c
5. second number 1381 corresponds to the unique name of the beam element in ETABS model as shown in Figure 23 In the case of SAP 2000 model the second number is the element s label Uniques nams of Beams elements Etabs model Figure 23 Unique name of beam element in ETABS model 20 Beam Detailing Package for ETABS and SAP 2000 The generated plan helps the user to understand the generated text files moreover will help the user to understand the direction of each beam when it will be detailed by plotting the unique names at each span In Figure 23 the beams with unique names 1396 1401 1386 have been detected as they are three different beams 6 8 2 respectively BDG detects the shear wall elements and assumes that the beams before and after the shear wall elements are not continued as one beam There are no common nodes 3 2 2 Beam Detailing Application By writing CSIBEAM again in the command line the user interface will appear again Beam Detailer V01 for ETABS and SAP2000 Application C Plan Generator Beam Detailing _ Plan Beam Detailing 1 Longitudinal Reinforcement Basic top bars Number of bars Diameter Basic bot bars Number of bars Skin steel bars Number of bars Diameter Prefered top bars diameter mm Prefered bottom bars diameter mm Prefered extra bars diameter mm Maximum basic reinforcement Draw Reinforcement Envelope V Draw reinf
6. the XML file ETABS 7 Save the XML file in a specific Path Save XML File As LE Documents la Date modified iin Downloads HEr Miquel Manica r Mo items match your search ET Music TS NASDMHA B Pictures lial upc alireza zz Videos ia OS C c DATA Ds Ei Network w File name Manual Example Save as type XML Files xrnl Hide Folders Cancel Figure 9 Save the XML file ETABS 3 1 2 Export date from SAP 2000 1 Before running the analysis and starting the design of the model step 1 in ETABS chapter must be done also for any SAP 2000 model a Assign minimum number of outputs stations equal to 11 b Adjust the beam ends length offsets by taking into account the width of the columns the supports 2 The model must be designed via SAP 2000 without any warning message Frame type must be selected first ACI OMRF IMRF SMRF for more information you can refer to ACI 318 11 chapter 21 Any implemented design code in ETABS or SAP 2000 can be used to perform the design of the beams 3 Select the elements The floor in interest and make sure you have selected the top and the bottom joints of the supports columns and shear walls as shown in Figure 10 12 Beam Detailing Package for ETABS and SAP 2000 TIT L i A Y lt N NI NR A i W LEV ALN AN is WAY Figure 10 Selected floor in interest to export the tables SAP 2000
7. while lt s b i 33 setq a 0 w SE SPID ALEEA The Structural Engineering Services Platform for Innovation and Development Beam Detailing V1 1 User Manual For SAP 2000 ETABS RISA 3D August 2015 Barcelona Spain Copyright Copyright SESPID S L 2015 All rights reserved The program Beam Detailing and all associated documentation are proprietary and copyrighted products Ownership rest with the Structural Engineering Services Platform for innovation and Development SESPID S L Unlicensed use of this programs or reproduction of documentation in any form without prior written authorization from SESPID S L is explicitly prohibited No part of this publication may be reproduced or distributed in any form or by any means without the prior explicit written permission of the publisher Further information info sespid com Further support support sespid com DISCLAIMER CONSIDERABLE TIME EFFORT AND EXPENSE HAVE GONE INTO THE DEVELOPMENT AND TESTING OF THIS SOFTWARE HOWEVER THE USER ACCEPTS AND UNDERSTANDS THAT NO WARRANTY IS EXPRESSED OR IMPLIED BY THE DEVELOPERS OR THE DISTRIBUTORS ON THE ACCURACY OR THE RELIABILITY OF THIS PRODUCT THE USER MUST UNDERSTAND THE BASIC ASSUMPTIONS OF THE SOFTWARE ARRANGEMENT OF THE REINFORCEMENT DETAILING AND THE REINFORCEMENT ENVELOPES CONDITIONS AND REQUIREMENT OF THE ACI 318 THE DRAWINGS AND THE INFORMATION PRODUCED BY THE SOFTWARE MUST BE CHECKED BY A QUALIF
8. Data Select Load Patterns H E Property Definitions 1 of 1 Selected O Load Pattern Definitions CO Other Definitions Load Cases Results O Load Case Definitions Select Load Cases H Connectivity Data 9 of 3 Selected L Joint Assignments Frame Assignments Modify Show Options B Frame ltem Assignments K Table Frame Section Assignments Set Output Selections O Table Frame Property Modifiers TS V Selection Only F Show Unformatted K Table Frame Local Axes Assignments 1 Typical O Table Frame Offset Along Length Assignments 0O Table Frame Output Station Assignments O Table Frame Auto Mesh Assignments O Table Frame Load Transfer Options C Frame Load Assignments Frame Design Assignments S E Area Assignments Fiennes 8B Area ltem Assignments amp Table Area Section Assignments Save Named Set O Table Area Auto Mesh Assignments L Options Preferences Data O Miscellaneous Data _Delete Named Set _ C ANALYSIS RESULTS 0 of 17 tables selected 8 8 DESIGN DATA 1 of 2 tables selected 8 Concrete Frame 8B Concrete Summary Data O Table Concrete Design 1 Column Summary Data ACI 318 11 hi Table Concrete Design 2 Beam Summary Data AC 318 11 Cancel Table Formats File Current Table Formats File Program Default Figure 12 Selected tables SAP 2000 Note If there are some unavailable tables to select in the Tables window the user can continue to the next step withou
9. Envelope orcement envelope On Off el Manica mar E beam_Manual Example xml _ beam_out_xml2bxt Copy txt beam_out_xml2bet txt ERRORES OUT Manual Examplexml Plan Beam Detailing out Text File Name without bt or out Figure 21 Launching Plan Generator 19 seam Detailing User Manual for ETABS and SAP 2000 The path of where the outputs of Beam Detailing Generator BDG are located must be selected and pasted it in the path field Text file name must be Plan Generator without the extension out as we mentioned before this output works only with the application Plan Generator Then press OK button The application will start immediately to draw the geometry of the selected floor elements by giving a new layer to each detected beam each layer has different color and different name similar to the same name of the detected beam as shown Figure 22 To see the plan you might need to use the AutoCAD zoom extend command ObFi tL teL S Y S DDDDDDDDD99D99DD99D L TE LOE LOE OE OE TOE FOE IOE IOA TOE TOA OE TOE OE OE OE G te g6Li tl Figure 22 Generated Plan Layout ETABS Names of the detected beams corresponds to the names of the different beams files that have been generated by Beam Detailing Generator in the Figure 22like example In the element 12 1381 the first number is the number of the text file beam 12 txt it means this element is a part of the mega beam 12 The
10. IED AND ENGINEER OR ARCHITECT THE ENGINEER OR THE ARCHITECT MUST INDEPENDENTLY VERIFY THE RESULTS AND TAKE PROFESSIONAL RESPONSIBILITY TO MODIFY OR USE THE PRODUCED INFORMATION il Content KICO FIGURES ooa at ieee ee ee ee V Df OAC O Neee an a E EE AN E EE 6 2 Release Noltesand NEw Peatire Sonore N A N AR N 7 3 Beam Detailing Package for ETABS and SAP 2000 cccc ccc cccccccccccceeeeeeeeeeeeeeeeeeees 8 3 1 1 Export date from ETA BS crniiin ne R A PARARE RAS RT 8 3 1 2 Export Gate TOn SAP W00 ieena E E N eee 12 FIS Read ETABS SAP 2000 outputs and generate the input for Beam Detailer 15 3 2 Beam Detailer for ETABS and SAP 2000 useciiin a 17 3 2 1 Plan Generator Applicant eco nen eeu erie ie 19 D22 B am Detar line Applicaton neenrnis diio innn E E EEEE E 21 3 2 3 ATT ANCEIMENL OF steel Dans ananena A E NN 25 3 2 4 Materials MEMO oonconiimia nni E AO A 29 oo Beam Framework and Reinforcing Bar HOOK ccccccceeeseseessseeessseesseeens 29 3 2 6 Plan Beam Detailine Application incu wins ean nes ens RT 29 Die SMM Sere casec teeth cd A E se seed te ie eset ee eect ae eae 31 1V List of Figures Figure 1 New Features of Beam Detailing V1 1 0 0 ee eeeseesessssessseessssssssessessesesens 8 Figure 2 Assign minimum number of station locations ETABS seeesseeeeeeeeees 9 Figure 3 Adjust the end length offsets ETABS at acitaciaavinracie iin ote 9 Figure 4 Define new table set ETABS
11. MM B20 750 ye 7220 161 1604 185 345 Figure 37 Extension of the additional bottom boars In the case of a shear wall support at the edge of the beam Beam detailer automatically uses the development length to extend the bars inside the shear wall as shown in Figure 38 52126259 PBIZZED lL Automatic detection JB 12 745 extension equal to the development length 28726735 S81 2730 6612 1SI2 76C 581 2 1 72 735 Figure 38 Case of shear wall edge support Reinforcement envelopes diagrams Figure 39shows the envelope diagrams af E axisname of Ml beam JE 7 of cbeam of E Defpoints E dim Station locations Frame of Ml line of E longreinfo cf outlongreinfo mj required bot reinf ie quired top reinf mA required transverse reinfircen ont of E transversereinfo required transv of ml ZEROLINE Figure 39 Envelopes diagrams and station locations Beam Detailing draws five diagrams each is assigned to a different layer using different colors Required bot reinforcement Is the design bottom reinforcement based on the exported results from ETABS cm2 28 a Beam Detailing Package for ETABS and SAP 2000 Required bot reinforcement Is the design top reinforcement based on the exported results from ETABS cm2 Additional top reinforcement Is the difference between the required and the basic bottom reinforcement that must added to the basic bot
12. al bars The output of the longitudinal reinforcement of ETABS and SAP 2000is mm2 the program automatically change these unites to cm2 to fit with the layout of the beams in meter A scale factor equal to 0 01 means each measured value on the envelope diagram later will be 0 01x cm2 The scale factor of the transverse reinforcement diagram The output of the transverse reinforcement of ETABS and SAP 2000 is mm2 mm the program automatically change these unites to cm2 cm to fit with the layout of the beams in meter For scale factor equal to 1 it means each measured value in the transverse reinforcement diagram is cm2 cm For scale factor equal to 10 the measured value will be mm2 mm Field 4 Transverse reinforcement Frame type must be selected as one of the following reinforced concrete frame type ACI 318 11 Transverse Reinforcement Frame Type OMRE Min stirups bar 6 Max stimups bar 6 Max Space between bars cm Minimum clear spa a erate five transverse reinforcement zones cm IMRF i SRE Clear span length tos ene transverse reinforcement zone cm Figure 26 Transverse reinforcement options ETABS OMRF Ordinary Moment Resisting Frame IMRF Intermediate Moment Resisting Frame SMRF Special Moment Resisting Frame Beam Detailer applies the transverse reinforcement requirements of ACI 318 based on the selected frame type Figure shows the different between the three types of frames 22 a Bea
13. am Detailer gives the user the option to adjust the spans lengths in order to set the correct framework of the beam Span length is actually the element length in the analytical model and since sometimes the model doesn t match with the final framework of the beam Beam Detailer gives the user the option to modify the spans length by enter N or n in the command line If the user entered N or n the program asks the user to enter the spans length one by one in cm the user must know the order of the spans Beam Detailer understands the span length as they are the distance between the supports center to center in the case of columns supports and from the face of the wall when the edge support is a shear wall Command cCSIBEAM Figure 31 Fixing the spans lengths If the user doesn t want to modify the spans length it is enough to click on ENTER or y Y After this step Beam Detailer gives the user the option to adjust the beam s framework by modifying the width of the columns The same concept of modifying the spans length is used to modify the columns width Views 32 Adjusting the supports widths Then the software asks the user to specify any point to start the detailing it s enough to enter the value 0 in the command line Figure 33 Start the s detailing for a singular beam Note Beam Detailer uses the point 0 0 to start the drawing for any beam it means the user has to move his drawings a bit every time he w
14. an continue without any problem 4 Select the floor in interest the selection must include the nodes of the beams as well as all the supports columns or shear walls including the top and bottom nodes Any non structural elements in the model must be deselected as well as any steel beams before the exporting Figure 6 Selected floor in interest to export the tables ETABS 5 Modify the table set option gt Units mm i Options ff eel Model Explorer A v Show Selection Only V Show Only if Used in Model Tables IV Show Numbers Unformatted Model Analysis Show All Fields Design Beam Det sy Show Tables Sort By Default Model Display Tables Reports Detailing Modify Table Set Modify Table Set Options Delete Table Set Multi step Output Envelopes Step by Step Last Step X Export to Excel Export to Access 7 Export to XML C Combine Case and Step Fields es All Modes 1 Figure 7 Change the units of the table set ETABS 6 Export the table sets to XML The export must be only for the selected floor 11 seam Detailing User Manual for ETABS and SAP 2000 Model Display Tables Reports Detailing Show Tables Modify Table Set Modify Table Set Options Delete Table Set w Export to Excel R Export to Access Export to XML Figure 8 Export
15. ants to draw a new layout to avoid any overlapping 3 2 3 Arrangement of steel bars Beam Detailer uses a specific algorithm to arrange the reinforcement as shown in Figure 34 Basically uses the recommendation of the ACI 318 to place the longitudinal and transverse bars 25 seam Detailing User Manual for ETABS and SAP 2000 769 J812 iL 58x70 58x70 C 50x70 E Additional top bars at the supports main bars 3 Additional top bars at the supports secondary bars ASi 2 IGOZ AZA Bria TEE 4 425 i Set2 1912 90 THIZL IF MIZ IAI Basic top bars R 5a 2 I2B4426 755 GFT S428 IA FIS Idt2 20355 Skin bars ae GS oes De Basic bot bars 2712 2015 Jet 2 2035 AASTAIL OT 2 445 SBPERIZEABTL B4O hos 3012185 Jafz got ded 27 1253 cee pe as oO ua aM ASA Additional bot bars at the supports Viga AA bot bass at the middle of the spans Figure 34 Longitudinal bars arrangement Basic top and bottom bars are the basic bars controlled by the maximum ratio that discussed previously If the basic bars are not enough to cover the entire longitudinal reinforcement additional reinforcement will be required to recover the lack of reinforcement Additional reinforcement follows the next arrangement Additional top reinforcement at each support divided to secondary and main bars Calculated by taking the maximum top reinforcement at the right and the left of each support the half station
16. can be used only to perform the detailing for a single beam Plan Beam Detailing Reads the output Plan Beam _ Detailing out and can be used only to perform the detailing for all the beams in the entire floor 17 b Ibeam Detailing User Manual for ETABS and SAP 2000 Each of the previous applications must be used to read the corresponding flies or files otherwise the application will not be able to run This chapter will use the generated files form ETABS model same explanation can be applied on the generated files from SAP 2000 model Beam Detailer for ETABS and SAP 2000 software must be loaded every session the user wants to use it in each AutoCAD files by following the next steps In the AutoCAD menu bar go to gt Tools gt Auto Lisp gt Load Application gt Workspaces Palettes Toolbars Command Line Ctrl 9 Clean Screen Ctrl 0 aeons Load Unload Applications SP Spelling Quick Select Look in di Beam Detailing Manual v F e m Daue De Name j Date modif Type Size Isolate i i J ETABS 04 06 201 File folder y f 04 06 201 FAS File Update Fields 5 Block Editor Xref and Block In place Editing Data Extraction Data Links Action Recorder File name BD V01 ES Load Application Files of type Fastdoad AutoLISP Format fas fom Run Script Loaded Applications History list Add to History Macro AutoLISP G4 Load Application ka Visual LISP Editor acad2012 E prog
17. e Beam Detailing Generator for ETABS and SAP 2000 assumes the columns and beams section have t3 t2 dimension Any section that has no t3 t2 dimension Beam detailing Generator will not be able to run In this case the user has to fill these values manually in the exported file 31
18. e will assume that a bar splice 1 3 time the development length is applied for this bar A favorite transverse bars spaces The plotted spaces will be controlled by this list Figure 1 In other words the software will use always this list to approximate the calculated values to be the nearest one in the list This favorite list can be changed by the user a space between each two values is required always values must be always in cm If the required space in any station location is less than the minimum values in the favorite list The software will uses the required space to represent the traverse reinforcement at the same station location Extensions distances of the top and bottom bars are rounded off to 5 cm just need to replace the following files with the ones of version V1 1 BD V1 1 ES English AutoCAD LSP fas BD V1 1 ES Spanish AutoCAD LSP fas BD V1 1 ES DCL JBeam Detailing User Manual for ETABS and SAP 2000 Beam Detailer V1 1 for ETABS and SAP2000 Application C Plan Generator Beam Detailing Plan Beam Detailing Longitudinal Reinforcement Basic top bars Number of bars Diameter 1 Metric Basic bot bars Number of bars Diameter and U S bars Skin steel bars Number of bars Diameter d ti Prefered top bars diameter mm esigna 10nsS Prefered bottom bars diameter mm Prefered extra bars diameter mm Maximum basic reinforcement Change Do not change w Bars designations Draw Reinforcem
19. eeseeeeseesseeeeenegs 19 Froure 2 Launc hine Plan Gener alor cea eed 19 Figure 22 Generated Plan Layout ETABS anonn aiia A 20 Figure 23 Unique name of beam element in ETABS model eee ceeeeeeeeeeeeeeeeees 20 Figure 24 Beam Detailer User mer lac Orien Plats vieja aurtladansadtas ea Wes A Figure 25 Options to control the basic reinforcement csssesssssssssseeeeesseesseeeeeees 22 Figure 26 Transverse reinforcement options ETABS ccceeeeseeeeesesseeeeesssesseesseseens 22 Figure 27 Transverse reinforcement conditions and requirement ACI 318 23 Figure 28 Maximum space between bars at the cross section sssseseeeeeeeseeeeeees 23 Figure 29 Launching beam detailing application 0 0 0 0 ceesssssssseeeessesessssessesseesseeeens 24 Figure 30 Adjusting the beam spans lengths 2 0 0 0 ceesessssseeeeeeeceeeeeeeeeeseeeeeeeeeeeeees 25 Figure 31 Fixing the spans GM ONS issan T 25 Figure 32 Adjusting the supports widths 000000sosssssssssssssssssssssssssssssssssssssssssssssss 29 Figure 33 Start the detailing for a singular beam ccccccccccceceeeeeeeeeeeaeeeeseeeeeeees 25 Figure 34 Longitudinal bars arrangement ssssssssssssssesssssssssseeesseseseseeesseseeeseegs 26 Figure 35 Extension rules for longitudinal bars ACI 318 cee eeeeeeesseeeseeeeeeeeeeens 27 Figure 36 Extension of the additional top bOA PS ccceeeesessss
20. ent Envelope Draw reinforcement envelope On Off Scale factor longitudinal bars cm Scale factor transverse bars cm2cm Transverse Reinforcement Frame Type IMRF w Min stirmups bar Hed w Max stimups bar Hd w Minimum clear span length to generate five zones cm 70 Clear span to generate one zone cm 5810 12 15 20 22 25 30 35 Your favonte spaces list cm Material Properties Concrete strength MPa Steel strenath MPa Path CAUsers Bachar Desktop Beam Detailing Pack ETABS paradoc st 4 Tet File Name without text or out paste the name of the beam 3 Favorite transverse Pee bars spaces Figure 1 New Features of Beam Detailing V1 1 3 Beam Detailing Package for ETABS and SAP 2000 Beam Detailing package is compatible with any version of ETABS that can export the design result in XML format and in mm units ETABS 2013 2 2 or higher For SAP 2000 models Beam Detailing package is compatible with ay version that can export several table in one text file The following steps show the procedure must be followed to generate the detailing layouts for any ETABS or SAP 2000 model 3 1 1 Export date from ETABS 1 Before running the analysis and performing the design the user must be sure to do two steps first a Assign minimum number of outputs stations equal to 11 By selecting the beams gt Assign gt Frame gt Outputs stations gt Min number stations 11 a Beam Detailing Package for ETABS a
21. fields Structural Layout e Joint coordinate gt v Joint coordinates e Frame connectivity v Column connectivity v Beam connectivity v Brace connectivity e Shell connectivity v Wall connectivity Definitions e Frame sections vV Frame sections e Shell sections Y Shell sections Walls e Assignments e Frame Assignments v Frame assignments Sections vV Frame assignments Local Axes e Shell Assignments Vv Shell assignments Sections se Design e Concrete Design v Concrete Beam Summary ACI 318 14 Choose Tables Choose Tables Choose Tables Tables _ Concrete Beam Rebar Data _JAssignments B _ Model 5 Shel Sections 4 _ Joint Assignments _ Project Settings C Shell Sections Summary _ Frame Assignments amp _ Structure Layout T Shell Sections Slab Frame Assignments Summary Story Data Shell Sections Deck Frame Assignments Sections E _ Grid Systems vl Shell Sections Wall Frame Assignments Property Modifiers _ Joint Coordinates Pier Spandrel Section Properties Frame Assignments Offsets Joint Coordinates Data 1 Reinforcement Sizes Frame Assignments Insertion Points Joint Coordinates Link Properties Frame Assignments Local Axes Frame Connectivity Mass Frame Assignments Output Stations Column Connectivity Data Groups Frame Assignments Mesh Options Column Connectivity FH lLoads lt E Shell Assignments Beam Connectivity Data Assignments _ S
22. for other cases Beam Detailer assumes that the bars are not coated by epoxy Y l1 Field 6 the user must put the path where the files are located and the name of the beam in interest to start the detailing F f J Beam Detailing Ma ETABS V Search ETABS 9 m basic reinforcement Change TEP einforcement Envelope ETABS Model Bashar 02 06 2015 Set Mee 18 n reinforcement envelope On Off _ ETABS Model Bashar 02 06 2015 ico ids beam_out_xml2tet txt actor longitudinal bars cm2 0 01 laces beam 1 tet actor transverse bars cm2 cm 1 beam 2 txt Reinforcement beam 3 txt ype QMRF v Min stimups bar 6 v Maxstimups bar 6 Max Space between bars cm 35 Ear SASA athe generate fi i 700 M beam Sbt n clear span len e five transverse reinforcement zones cm beam p t yan length to generate one tansverse reinforcement zone cm 250 beam Tbt Properties E Prenat MPa Steel srength MPa beam 9 bt y i N m ESbeam 10bit C Beam Detailing Manual ETABS oi beam 11 bt Name without b or out beam 5 i c naa Figure 29 Launching beam detailing application 24 a Beam Detailing Package for ETABS and SAP 2000 Command Command CSIBEAM 574 999 770 0 575 0 This is the list of the beam s spans center to center do you agree N Figure 30 Adjusting the beam spans lengths After launching the software by pressing on OK button Be
23. g reads the design results already done via ETABS or SAP 2000 by the application BDG All the beams to be detailed must be checked and designed via ETABS or SAP 2000 without any warning message The detailing afterwards for each beam or for the entire selected floor can be done in AutoCAD by using the software BD In the case of RISA 3D model Beam Detailing package is also able to design the beams in interest based on the extracted forces from RISA model The design can be done via BDG a Beam Detailing Package for ETABS and SAP 2000 2 Release Notes and New Features This chapter demonstrates the new features that have been added to the previous release of Beam Detailing Package V1 1 New feature l yi For users who have the Beam Detailing V1 1 already installed on the computer a The U S bars designations has been added to previous metric designations The user can chose between Metric and designations to represent the bars diameter number for each layout as shown in Figure 1 This option is valid for longitudinal and transverse bars Like example 8 d25 if the user chooses Metric designations the software will use d25 to identify the diameter and 8 if the user chooses the U S designations A maximum bars length This option gives the ability to the user to define the maximum bar length as shown in Figure 1 This option will effect only the calculated bars weight if any bar exceed this length the softwar
24. hell Assignments Summary _ Joint Assignments V Shell Assignments Sections _ Frame Assignments Shell Assignments Property Modifiers goue Beam Connectivity Brace Connectivity Data Brace Connectivity B _ Shell Connectivity Floor Connectivity Data Floor Connectivity Frame Assignments Summary Frame Assignments Sections Frame Assignments Property Modifiers Shell Assignments Diaphragms _ Shell Assignments Pier Spandre Shell Assignments Floor Mesh Options Frame Assignments Offsets Structure Data Frame Assignments Insertion Points _ Analysis Frame Assignments Local Axes B Design Wall Connectivity Data Wall Connectivity Null Shell Connectivity Data Null Shell Connectivity Objects and Elements Definitions Diaphragms Material Properties Frame Assignments Output Stations _ Preferences Frame Assignments Mesh Options Overwrites Assignments Design Forces Shell Assignments Summary Concrete Design Shell Assignments Sections Concrete Column PMM Envelope i Shell Assignments Property
25. l bars Number of bars 2 Diameter Prefered top bars diameter mm Prefered bottom bars diameter mm Prefered extra bars diameter mm Maximum basic reinforcement Draw Reinforcement Envelope Draw reinforcement envelope On Off Scale factor longitudinal bars cm2 Scale factor transverse bars cm2 cm Transverse Reinforcement Frame Type OMRF v Min stimups bar 6 vy Maxstimups bar 6 v Max Space between bars cm Minimum clear span length to generate five transverse reinforcement zones cm 4 Clear span length to generate one transverse reinforcement zone cm Material Properties Concrete strenath MPa 5 25 Steel strength MPa Path c beamdetaiing O O OOO O Tet Fie Nane tho s Cancel Help Info Figure 20 Beam Detailer user interface Field1 is to choose on which application you want to work 3 2 1 Plan Generator Application By selecting Plan Generator in the field 1 Plan generator application will be active All the other parts Fields will be disable except field 6 C Beam Detailing Manual ETABS Beam Detailer VO1 for ETABS and SAP2000 bme Share View Application i Beam D ETABS vile Search ET 9 Plan Generator Beam Detailing Plan Beam Detailing Longitudinal Reinforcement Diameter Diameter Jumber Diameter Prefered top bars diameter mm Prefered bottom bars diameter mm Prefered extra bars diameter mm 10 tet 11 tet 12 tet 13 tet _jbeam 14bt Reinforcement
26. le name 5AF Mnual Example Save as type Text Files txt Figure 14 Save the tables in txt format SAP 2000 3 1 3 Read ETABS SAP 2000 outputs and generate the input for Beam Detailer Run Beam Detailing Generator 15 Fz i JBeam Detailing User Manual for ETABS and SAP 2000 In this chapter we will explain how to read the ETABS xml file generating the input file for Beam Detailer Software By clicking on the shortcut of BeamDetailing exe the user interface in Figure 16 will appear Figure 15 BeamDetailing shortcut Click on ETABS to work on ETABS generator Select a Path to save the output of BDG The Project Directory Select the XML file that has been exported previously Click on Generate COWS Beam Detailing Generator i Find A 3bCcD AABBCCI AaBbCcD AaBbCcDd 4aBbCcDdt AaBbCc AaBbCcDe ac Replace Risa 3D ETABS SAP 2000 ystract T Abstract T Acknowl T Acknowl 1 Affiliaton Author blank lin gt N Select Styles F Editing Project Directory C Beam Detailing Manual ETABS w B 7 8 9 10 11 12 13 14 16 17 File 1 Elements Design and Connectivity File f C Beam Detailing Manual ETABS Manual Example xml ue Path to ETABS Elements Design and Connectivity File xml J Beam Detailing ETABS v Organize v New folder f Pictures A Name 2 P upc alireza a ETAB f B Videos Manual Example C ee eee i 0S C DATA D
27. locations from each side Additional bottom reinforcement is divided to two parts a Additional bottom reinforcement at the supports This reinforcement is calculated based on the maximum value of the bottom reinforcement for two station locations at the right and two station locations at the left of the each support b Additional bottom reinforcement in the middle of each span This reinforcement is calculated based on the maximum value of the bottom reinforcement for the middle stations locations span s stations locations minus two from each side for each span along the beam Beam Detailer uses the reinforcement envelope diagram to calculate and extend the additional bars top and bottom along the length of the beam by satisfying the extension condition of ACI 318 as shown in Figure 35 26 a Beam Detailing Package for ETABS and SAP 2000 Face of support PMoment The extension at zero point where there s no l a R required reinforcement top or bottom is LT Points of inflection P 1 Momeni always taken as the maximum of strengt of bars amp i e 12 time the favorite bar diameter Mid span 7 e Maximum clear span along the length of member 4 of the beam 16 Moment curve l e Maximum beam height for all the lt 2 d 12d or 16 gt spans lt 2 d or 12d gt h In the case where there s no inflection point e e e bars ty l no zero reinforcement Bea
28. m Detailer uses SS Class B bars splice 1 3 time the development L gt dor 12d length 4 Assuming the conditions 12 10 5 t Section 12 2 1 or 12 11 2 w or 4 for compression when Diameter of bars a bottom bars used as limited by Section 12 11 3 compression reinforcement at point of inflection 2 gt fg are satisfied Fig R12 10 2 Development of flexural reinforcement in a typical continuous beam Figure 35 Extension rules for longitudinal bars ACI 318 Note Any other requirements of ACI or any other standard must be satisfied by the user Additional top bars at the middle supports are extended to the left and the right of each support Beam Detailer plots the extension value for each additional bars main and secondary as shown in Figure 36 3 195 130 JOBS 19 3286 19 260 220 nz 2607220 460 550 _ _ gp 299 Figure 36 Extension of the additional top boars The additional bottom reinforcement at the supports has also two extension values right and left measured from the center of the column Where the additional bottom in the middle of the span has one extension value equal to the distance from the face of the left support to the left edge of these bars as shown in Figure 36 2l Fa i Ipeam Detailing User Manual for ETABS and SAP 2000 140 198 IBI4 32 JBI4A S 32 JOI4A S 32 JOI4A S 32 3AI14 52 3814 32 50x70 50x70 EEE 70
29. m Detailing Package for ETABS and SAP 2000 Fe 8 x smallest longitudinal bar diameter i x stirrup bar diameter Stirrups 30 cm Stirrups lt 5cm He Figure 27 Transverse reinforcement conditions and requirement ACI 318 The stirrup bar diameter is in the previous figures is the Min stirrups bar diameter Smallest longitudinal bar is always the smallest between the four diameters top basic top preferred bottom basic bottom preferred Note If the design had conducted via different standard the user has to satisfy the transverse reinforcement requirement of this standard manually Beam detailer calculates the number of transverse bars with the most appropriate bar diameter in the range between the minimum and maximum stirrups bars The number of transverse bars is restricted with minimum value according to the maximum space between bars at the cross section as shown in the Figure 28 Based on this input value the software will calculate the minimum number of transverse bars by giving a concrete cover equal to 2 5 cm from each side Max space between bars Figure 28 Maximum space between bars at the cross section 23 Beam Detailing User Manual for ETABS and SAP 2000 Beam detailer automatically increase the number of basic bars to match with the minimum number of transverse bars Minimum clear span length to generate five transverse reinforcement zones According to the input value the software will use five
30. nd SAP 2000 Frame Assignment Output Stations EA O Max Station Spacing Min Number Stations OK Close Apply Figure 2 Assign minimum number of station locations ETABS b Adjust the beam ends length offsets by taking into account the width of the columns the supports By selecting the beams gt Assign gt Frame gt End length offsets Frame Assignment End Length Offsets ie End Offset Along Length Automatic from Connectivity C Define Lengths Figure 3 Adjust the end length offsets ETABS Automatic from connectivity or Define length option must be selected in such way to guaranty that the first outputs station will be at the face of the column at End I and the final outputs station will be at the face of the second column at end J Or any suitable end length offsets 2 The model the elements to be detailed must be designed via ETABS without any warning message Frame type must be selected first ACI OMRF IMRF SMRF for more information you can refer to ACI 318 14 Any implemented design code in ETABS or SAP 2000 can be used to perform the design of the beams 3 Define a new table set Options gt Show Modal Explorer gt in the Model Explorer go to tables gt add new table set E Tables H Analysis i Design i Ipeam Detailing User Manual for ETABS and SAP 2000 Figure 4 Define new table set ETABS gt The following tables must be selected in each of the following
31. ng Produced information and drawings must be reviewed carefully by a qualified engineer or architect e Do not use the edit area to mesh the shear wall element use the normal mesh option e Make sure you have exported the results in mm units e Beam Detailing understand each intersection joint in the analytical model developed via ETABS SAP 2000 or RISA 3D as a support between two spans For this reason try to divide the beams element only at the columns or at the shear walls e Do not overlap the beam elements with shear elements e Do not insert columns elements at the edge of wall element the connection in this case must be beam to wall e Don t forget to deselect all the nonstructural element from the model before exporting the results in the same time remain on the joints between elements e Export each floor individually e Remember always to select the upper and the lower nodes of element in the case of the first floor you have to select the base nodes e For SAP 2000 models don t forget to deselect all the slab elements before exporting the tables e Do not export any unnecessary tables of any model ETABS or SAP 2000 e Local axes direction of beam elements must be reviewed by the user especially for the case of a beam with just one span In order to identify the end supports e Try to avoid switching the local axis 1 of continuous beams It s always better to model the beams in the same direction
32. or transverse bars cm2 cm beam i Transverse Reinforcement _ beam Frame Type IMRF w Min stirrups bar 12 w Max stirrups bar Max Space between bars cm beam Minimum clear span length to generate five transverse reinforcement zones cm Clear span length to generate one transverse reinforcement zone cm Material Properties Concrete strength MPa Steel strength MPa Plan_Generator out jen C Beam Detailing Manual ETABS AJ ERRORES OUT beam_out_xml2bt Copy bt Text File Name without b or out Plan_Beam_Detailing beam_Manual Examplexml Manual Example xml Lt good Figure 41 Launching the Plan Beam Detailing Application By writing the name of the file Plan Beam Detailing in the text file name as shown in Figure 41 the software will start to carry out the detailing for all the detected beams in the selected plan using the same algorithm of Beam Detailing application 30 Y Tips 3 3 Tips This chapter helps the users to handle beam detailing package professionally e Beam detailing package is a tool to simplify the interaction between structural analysis software and the operation of generating the layouts of reinforced concrete beams Beam Detailing as any other tool still have some limitations we have done our best to make it simple flexible and powerful We really recommend the new users to read this document and understand the basics and the assumptions of Beam Detaili
33. orcement envelope On Off Scale factor longitudinal bars cm2 3 Scale factor transverse bars cm2 cm Transverse Reinforcement Frame Type OMRF wv Min stirrups bar 6 w Max stirrups bar Max Space between bars cm Minimum clear span length to generate five transverse reinforcement zones cm 4 Clear span length to generate one transverse reinforcement zone cm Material Properties Concrete strength MPa 5 25 Steel strength MPa Path c beamdetailing Text File Name without bt 6 paste the name of the beam Figure 24 Beam Detailer user interface Field 2 Longitudinal reinforcement Basic top and bot bars Are the constant reinforcement bars along the beam length at the top and the bottom of the beam Skin steel bars Are the middle bars along the length of the beam Preferred top and bottom bars diameter Are the diameters of the bars that will be used as an additional reinforcement to the basic reinforcement at the top and the bottom of the beam when it s required Preferred extra bars diameter Is the diameter of the bar that will be used to fix the real number of required bars by using less diameter less than the preferred top and bottom to recover the difference between the real and the integer number when the decimal part of the required number is less or equal to 0 5 otherwise the program will use an integer number of bars Maximum Basic reinfo
34. ram files autodesk autocad Display Image m files autodesk autocad New UCS acapp an C Program Files Autodesk AutoCA ina Named UCS acautoloade c program files autodesk autocad 7 i a gt Contents Geographic Location lt 5 CAD Standards V01 ES fas successfully loaded Wizards cere Draftina Settinac Figure 19 Load Beam Detailer for ETABS and SAP in AutoCAD BD V1 1 ES fas files must be selected gt load gt you should receive a message BD V1 1 ES fas successfully loaded BD V1 1 ES fas file can be saved in any location in the computer Please refer to the User Installation Manual to know more about BD V1 1 ES fas file For English Version of AutoCAD you have to use the English version of BD V1 1 ES fas For Spanish Version of AutoCAD you have to use the Spanish version of BD V1 1 ES fas After receiving the message gt write CSIBEAM in the AutoCAD command line gt press Enter si Se EE lt gt command CSIBEAM 3973872275127000 Ad ed fe PE opeL ROM Aras 2 ie OC Pm p Ce eee ee E After pressing Enter the next user interface will be appeared 18 a Beam Detailing Package for ETABS and SAP 2000 Beam Detailer V01 for ETABS and SAP2000 Application Plan Generator Beam Detailing Plan Beam Detailing Longitudinal Reinforcement Basic top bars Number of bars 2 Diameter Basic bot bars Number of bars 2 Diameter Skin stee
35. rcement ratio Is the maximum ratio of the basic reinforcement to the required reinforcement the user wants to notexceed Like example if the top reinforcement exceed this ratio the program will automatically decrease the basic top reinforcement by either e Decreasing the number of basic top bars if the option Nu of Bars is selected e Decreasing the diameter of the basic top bars if the option Diameter is selected 21 sean Detailing User Manual for ETABS and SAP 2000 De L eee h Maximum basic reinforcement 4 75 ae Draw Reinforcement Envelope Nu of Bars Draw reinforcement envelope On Off Do not change Figure 25 Options to control the basic reinforcement The same algorithm will be applied on the basic bottom reinforcement If the option Do not change is selected then the program will remain on the basic reinforcement Top and Bottom The ratio of the basic reinforcement to the required reinforcement is calculated by dividing the basic reinforcement as it s used for all the sections station location along the beam to the summation of the required reinforcement for the same sections Field 3 is to draw the envelope of the required reinforcement The design reinforcement of ETABS as well as the envelope of the additional reinforcement that must be added after using a constant reinforcement along the length of the beam Basic reinforcement There are two scale factors The scale factor for the longitudin
36. rent section in order to identify the different section along the length of the beam Reinforcing bar hook is always taken as the height 5 cm where the height 1s the one used to draw the framework The bars hook can be easily modified by the user We recommend the user to attach some typical details in the beams layouts in order to satisfy the design codes as well to help the construction engineers to understand the arrangement of the reinforcement 3 2 6 Plan Beam Detailing Application By writing CSIBEAM again in the command line the user interface will appear again Select the Plan Beam Detailing application to make it active Same features of Beam Detailing application are applied in this application except the adjustment of the beam framework 29 F Beam Detailing User Manual for ETABS and SAP 2000 e aA GG BeamDetailing Application Plan Generator Longitudinal Reinforcement Beam Detailing Manual ETABS Basic top bars Number of bars View Basic bot bars Number of bars bm Detailing Ma ETABS Skin steel bars Number of bars Prefered top bars diameter mm beam_out_xml2txt txt Pref Ee ba beam _ beam Prefered extra bars diameter mm _ beam el Maximum basic reinforcement Ge beam Draw Reinforcement Envelope v Draw reinforcement envelope On Off beam beam beam Scale factor longitudinal bars cm2 beam Scale fact
37. selected floor In other words this file include all the singles beams files in one file Plan Beam Detailing includes beam 01 txt beam 02 txt etc Same procedure to read the XML of ETABS model can be done to read the exported text file from SAP 2000 model as shown in Figure 18 By clicking on Generate button Beam Detailing Generator will generate the same files PC OS C Beam Detailing Manual SAP Beam Detailing Generator Tools beam beam Risa 3D ETABS SAP 2000 beam Project Directory C Beam Detailing Manual SAP beam beam File 1 Elements Design and Connectivity File C Beam Detailing Manual SAP SAP Mnual Example txt E beam beam 7 Generated Files beam d beam beam beam ALL LLL LL SAP 2000 beam_SAP Mnual Example txt _ ERRORES OUT _ Plan_Beam_Detailing out _ Plan_Generator out SAP Mnual Example te Figure 18 Reading the TEXT file and generating input files SAP 2000 Note If the SAP 2000 output file has instead of all the must be replaced by before running the Beam Detailing Generator software 3 2 Beam Detailer for ETABS and SAP 2000 Beam Detailer software works in AutoCAD environment and contains of three applications Plan Generator Reads the output Plan Generator out and can be used only to draw the plan layout of the selected floor in ETABS model Beam Detailing Reads any output of any single beam beam 1 beam 2 etc and
38. ssessseessesessssesseeessseeeens pa Figure 37 Extension of the additional bottom boas eeeeessssssssessessteeeesseeeeeeeseens 28 Figure 38 Case of shear wall edge SUpport encaishar re a EE a e 28 Figure 39 Envelopes diagrams and station locatiOns cc cssseesseseessssssesesessesseeesees 28 Figure 40 Materials SMO MeImOl reene e R 29 Figure 41 Launching the Plan Beam Detailing Application cc ceeeeeeeeseeeeeeeeeeees 30 seam Detailing User Manual for ETABS and SAP 2000 1 Introduction Beam detailing Package is a product of the The Structural Engineering Services Platform for Innovation and Development SESPID Beam Detailing package is compatible with different structural analysis software such as ETABS 2013 2 2 or any higher version SAP 2000 V16 or an higher version RISA 3D V11 or any higher version The package consists of two main software Beam Detailing Generator BDG An executable software works in Windows environment Responsible on reading the outputs of the structural analysis software analyzing filtering and then generating different files these files will be used later by the second software Beam Detailer Beam Detailer BD Responsible on reading the outputs of Beam Detailing Generator directly in ACAD environment AutoCAD 2010 or higher version Then performing the beams detailing layouts for a single beam or for the entire selected floor In the case of ETABS and SAP 2000 models Beam Detailin
39. t any problems 6 Press Ok Then go to File gt Display All Tables gt In Text Editor W No Splits as shown in Figure 13 All the selected tables will be plotted in just one file this file will be used later to carry out the beam detailing layouts 14 Beam Detailing Package for ETABS and SAP 2000 Area Section Assignments File View Forrmat Filter Sort Select Options Export Current Table Area section Assignments Display Current Table Print Current Table as Text File Export All Tables Display All Tables In Word as RTF File Print All Tables as Text File In Text Editor In Text Editor w No Splits Save Current Table Format to Table Formats File In Internet Explorer as Save All Table Formats to Table Formats File a5 a ste a Apply Format from File to Current Table Apply Formats from File to All Tables Add Tables Remove Current Table Close Form Add Tables Figure 13 Display all the tables SAP 2000 7 Save the text file in a selected file Area Section Assignments File View Format Filter Sort Select Options Units As Noted Area Section Assignments Text Text Text 4 Win Detal T di t This PC OS C Beam Detailing Manual SAP Organize New folder b Downloads Date modified lid Miquel Manica t m Music NASDMHA Pictures lid upc alireza E Videos i OS C y Fi
40. tom bars cm2 Additional top reinforcement Is the difference between the required and the basic top reinforcement that must added to the basic top bars cm2 Required transverse reinforcement Is the design transverse reinforcement based on the exported results from ETABS cm2 cm 3 2 4 Materials Memory Beam detailing application provides a short memory in each layout as shown in Figure 40 This memory helps the user to have an idea about the reinforcement amount in the beam ldt is the development length for the top bars lat is the bars splice length for the top bars ldb is the development length for the bottom bars and lab is the bar splice length for the bottom bars The previous lengths were calculated for the corresponded diameters for top and bottom bars based on the concrete strength and the steel yield strength This memory helps the user to reach the most economic design by performing different detailing for the same beam since changing the basic reinforcement as well as the favorite bars diameter and the transverse bars diameters can change the weight of the rebar Beam Detailing gives the ratio of the rebar to volume of concrete for the entire beam Figure 40 Materials short memory 3 2 5 Beam Framework and Reinforcing Bar Hook The height of the framework in the beam s layout is always taken as the height of the first span In the case when the beam has different heights or different widths Beam Detailing draws diffe
41. zones to place the transverse reinforcement when the clear span of any micro beam is more than this value Clear span length to generate one transverse reinforcement zone For any span that it s less or equal of this value the software will use a constant number of bars with constant space along the length of this span based on the maximum required transverse reinforcement for all the station locations along this span For any case between the previous two cases the software will generate three transverse reinforcement zones Field 5 Material Properties The user must input the concrete strength of the beam as well as the steel strength of the longitudinal bars These values will be used to calculate the development length of the bars by using the next formulation in the ACI 318M 12 2 2 assuming one of the next conditions is satisfied No 19 and smaller barsand No 22 and Spacing and cover deformed wires larger bars Clear spacing of bars or wires being developed or spliced not less than dp clear cover not less than dp and stirrups or ties throughout g not less than the Code minimum or Clear spacing of bars or wires being developed or spliced not less than 2d and clear cover not less than dp In the previous table No of bars refers to the diameter of bar mm Y takes the value 1 3 when the depth of the concrete below the bars is more than 300 mm usually the top reinforcement and takes the value equal to 1
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