Home

GTSTRUDL Version 32

1. JOB ID FR418 JOB TITLE Check PRINT MEMBER PROPERTIES for PIPE ACTIVE UNITS LENGT WEIGHT ANGLE TEMPERATURE TIME INC LB DEG DEGF SEC MEMBER PROPERTIES MEMBER SEG TYPE AX AY AZ IX IY IZ SY SZ YD ZD YC ZC EY EZ D OD TH PIP SC 1 TABLE WSPIPE 9 817 4 909 4 909 383 700 191 824 191 824 30 090 30 090 P12x33 LATO 12 750 6 375 6 375 0 000 0 000 12 250 1D 5O 0 250 0 000 2 TABLE WSPIPE 9 817 4 909 4 909 383 700 191 824 191 824 30 090 30 090 P12x33 PED r50 12 750 6 375 6 375 0 000 0 000 12 250 12 750 0 250 0 000 3 TABLE WSPIPE 9 817 4 909 4 909 383 700 191 824 191 824 30 090 30 090 P12x33 12 750 12 750 6 375 6 375 0 000 0 000 12 250 12 750 0 250 0 000 4 TABLE M S HP13 3 660 1 392 1 594 0 167 1 800 22 000 1 080 7 340 S6x12 5 6 000 3 330 3 000 1 665 0 000 0 000 5 TABLE M S HP13 3 660 1 392 1 594 0 167 1 800 22 000 1 080 7 340 S6x12 5 6 000 3 330 3 000 1 665 0 000 0 000 6 TABLE M S HP13 3 660 1 392 1 594 0 167 1 800 22 000 1 080 7 340 S6x12 5 6 000 3 330 3 000 1 665 0 000 0 000 KKEKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKK END OF DATA FROM NTERNAL STORAGE ee ce ee ee ee eee eee cee cee ee cece ae GT S
2. Ay lt E E S S H p A E S eS Pe Z eS A 2 KA AAAA AAS OAA oi Ma ns S is SK vai val ANININ NESL SANOS NININA TATA Vd Es CEVAVAVATAVATES iN KF A TAVAVAVAV AVAVAVAVAVAVAVAVAVAVAVAV AVAV SISSIN SINSIN N SA TANAVINAN TENANAN TEVEN EENEN EIAN ENAIT ITAAS NANETAS VANAV AA A AANE OA ine h GT STRUDL New Features A mesh generated for the same region using quadrilateral elements SBHQ6 is shown below Par Pee ee eee ee ee eee MEAP aE USOA WOU NAUUUURSNN SST Ean PRESET EROS OOTY EEpeEGEie cad one BEROGEREe aes Bae eae H ht Lt Ce ei SS Cel ie B Cw RODE H E Pr ee ee ee elope ESeahieeeae TETEN K E EE EEEE GueBeGeBeunnancabenucececenkoanueaouEnc OS Ne OF AFT 8 When refining a finite element mesh there is now an option to split frame members which are located in the mesh in the same way automatically The revised Refine a Finite Element Mesh Dialog is shown below Refine a Finite Element Mesh RESET the Selection a geist ot j REDERE aE go His i ee TET Choose 4 Refinement Technique Uniform refinement Subdivide uniformly use 2 parts side Mon uniform refinement C Subdivide nan uniformby Change element type Change to higher order element New Features GT STRUDL An example illustrating the automatic simultaneous refinement of members attached to a finite element mesh is shown in the following figures with the membe
3. R and R in active angular units between the orthogonal axes of this system and the axes of the overall global coordinate system The description of these angles is the same as given in Section 2 1 7 2 of Volume 1 of the GISTRUDL User Reference Manuals for rotated joint releases 0 05 and 0 In the second case three joints are required Each of the three joints may be defined either by a joint identifier using the JOINT option of the command or by its global X Y and Z coordinates If the joint identifier option is used however the coordinates of the joint must be specified previously by the JOINT COORDINATES command The first time 1 or a or v V and v defines the origin of the reference system the X axis of the reference system 1s determined by the first and second joints 1 or a Or V5 Vg and vo The positive X axis is directed from the first to the second joint The third joint 1 or a or Vio V and v 1s used to define the XY plane of the reference system The positive Y axis is directed toward the third joint The Z axis then is determined by the right hand rule Only one reference system can be specified in one command but the command may be used any number of times Modifications of Reference Systems In the changes mode the translations of the origin and or the rotations of the axes of the reference system from those of the overall global system can be changed Only that information supp
4. of an existing component joint member element load or group GT STRUDL New Features Syntax RENAME type old_name new name where type is the type of component to rename The allowable types are JOINT or NODE MEMBER or ELEMENT LOAD GROUP old name is the current component name This name must already exist The name may be either integer or alpha numeric new name is the new name There may not already be a component of this type with the new name The new name may be either integer or alpha numeric Example RENAME MEMBER 1 1001 After this command LIST FORCES MEMBER 1 will generate an error message but LIST FORCES MEMBER 1001 will work properly Documentation Section 2 1 12 20 The RENAME Command Volume 1 T The MEMBER PROPERTIES Command has been enhanced giving the user the ability to define member properties for Channels and Polygonal Tubes by specifying their dimensions The following are examples of the two new options for the MEMBER PROPERTIES Command MEMBER PROPERTIES 1 TO 10 CHANNEL TOTAL DEPTH 16 97 WEB THICKNESS 0 585 FLANGE WIDTH 10 425 FLANGE THICKNESS 0 985 11 TO 20 POLYGONAL TUBE DIAMETER BETWEEN FLATS 14 35 NUMBER OF SIDES 8 THICKNESS 0 985 2 9 New Features GT STRUDL These new options are available for prismatic and variable members The PRINT MEMBER PROPERTIES FOR DESIGN and the PRINT MEMBER PROPERTIES FOR DESIGN WITH DEFINITIONS commands now print data for these m
5. type number of incidences LINE 2 500 POLYNOMIAL CURVE 2 10 ARC TEMPLATE 3 CENTERED ARC 3 BEZIER CURVE 2 10 SPLINE CURVE 2 10 5 4 11 End of Document
6. GT STRUDL New Features The Display Parameters dialog has been enhanced so users may now change the Units in the dialog and also display the following additional parameters LX FRLX FRLY FRLZ FRUNCLF TBLNAM Yield Strength and Tensile Strength The enhanced Display Parameters dialog is shown below ia Display Parameters Display Value Legend for Design Parameters C on Screen l Draw Parameter Symbols f in List Box on Selected Members Legend Design Parameters M Units Lx Lier mo KZ gl ee ees FRUNLCF C TBLNAM STEELGRO Yield Strength Tensile Strength CORE Select All Select Mone Display Parameters using a Legend Alternatively Label on the Member Attributes Design Parameters l Units CEs C FRL C Releases C Ky Sr C FRY Lengths C KZ t LZ t FRL C Section Names UNLCF C Color by Section FRUNLOF C Local Axes TBLNAM C Bete Profiles Sane O Yield strength Tensile Strength C CO QE New Features GT STRUDL 16 17 18 19 20 vA 22 The hotkey L S have been added to Label Supports When Refining a Finite Element Mesh and changing to a higher order element the mapping shown below is now followed which shows the lower order element and the new higher order element Plane stress triangles map to the LST element Plane stress quads map to the IPQQ element Plate bending triangles produce an error saying unavailable Plate bending quads map
7. REC36X28 REC36X30 REC36X32 REC36X34 REC36X36 5 2 6 REC26X12 REC26X14 REC26X16 REC26X18 REC26X20 REC26X22 REC26X24 REC26X26 REC26X28 REC26X30 REC26X32 REC26X34 REC26X36 Design Prerelease Features GT STRUDL REC28X12 REC28X14 REC28X16 REC28X18 REC28X20 REC28X22 REC28X24 REC28X26 REC28X28 REC28X30 REC28X32 REC28X34 REC28X36 GT STRUDL DESIGN SLAB Command 5 2 4 Design of Flat Plates Based on the Results of Finite Element Analysis The DESIGN SLAB Command The goal of the DESIGN SLAB command 1s to select reinforcing steel for concrete flat plate systems using finite elements as a tool for the determination of design moments Instead of dealing with results on an element by element basis the user will be able to design the reinforcing steel for slab systems based on cuts Here the term cut refers to the cross section of a strip at a particular location to be designed A cut is defined by two nodes identifying the start and end of the cut and by an element in the plane of the cut Once the definition of the cut has been determined the resultant forces along the cut are computed using either moment resultants otherwise known as the Wood and Armer method or element force results using the CALCULATE RESULTANT command as described in Section 2 3 7 3 of Volume 3 of the Reference Manuals The final design moment is determined by computing the resultant moment acting on the cut for each loading condition and reduc
8. have no effect on a subsequent analysis unless the DOF is released The NO SUPPORT CHECK option cannot be used with the INPLANE option 3 The name of the generated NLS has been added to the output if the COMPRESSION ONLY option is used In addition the informative comments output below the spring value report now reflect the actual names of the generated NLS so they can be copied from the output to be added to your input or pasted into the Command window Documentation Section 2 1 12 13 The CALCULATE SOIL SPRING VALUES Command Volume 1 9 A new option LAUNCH has been added to the RUN command This option utilizes the Windows ShellExecuteEx utility to open programs with a specified file but unlike the 2 10 GT STRUDL New Features standard RUN command you do not need to know the program installation path This is especially useful for running utility programs like Microsoft s Excel where the installation path may be different on various computers Syntax RUN LAUNCH WAIT PROGRAM program FILE file Elements program For the LAUNCH version program is the name e g Excel of the program to be launched file an input file or other command line options for program only available to the LAUNCH version Explanation LAUNCH This version of the RUN command uses the Windows ShellExecuteEx functionality to run a program program above even though you do not know where it is installed The pro
9. which will produce this problem 1s shown below LOADING 1 MEMBER LOADS 1 FORCE X UNIFORM W 10 where member element is a SCURV or PCURV element GPRF 99 13 Known Deficiencies 4 2 General Input Output An infinite loop may occur if a GENERATE MEMBERS or GENERATE ELEMENTS command is followed by a REPEAT command with an incorrect format An example of an incorrect REPEAT command is shown below by the underlined portion of the REPEAT Command GENERATE 5 MEM ID 1 INC I FROM 1 INC 1 TO 2 INC 1 REPEAT 2 TIMES ID 5 FROM 7 INC 1 TO 8 INC 1 Only the increment may be specified on the REPEAT command GPRF 93 22 Rigid body elements cannot be deleted or inactivated as conventional finite elements The specification of rigid body elements as conventional finite elements in the INACTIVE command or in DELETIONS mode will cause an abort in a subsequent stiffness nonlinear or dynamic analysis GPRF 97 21 The path plus file name ona SAVE or RESTORE is limited to 256 characters If the limitation 1s exceeded the path plus file name will be truncated to 256 characters This is a Windows limitation on the file name including the path No GPRF issued Object groups created by the DEFINE OBJECT command may not be used ina GROUP LIST as part of a list If the OBJECT group is the last group in the list processing will be correct However if individual components follow the OBJECT group they will fail Also you can not copy
10. 0 CHAPTER 5 PRERELEASE FEATURES 5 1 52 5 3 lnnod cion srosrcrsurer e unene A rr ea Arere Design Pretelease Features 2 4 c54 44 03 6h 084 46 V EG OE e ES GSE OD 5 2 1 LRED3 Steel Desin Code s 2 5 seals hs OS 4 9G SSPE R ERO SO 5 22 2NCWCOdS 318 99 aie a ieee a Paced tice se wn er de boxe ade aoe ian wk ew ke 5 2 3 Rectangular and Circular Concrete Cross Section Tables 5 2 4 Design of Flat Plates Based on the Results of Finite Element Analysis The DESIGN SLAB Command 5 2 5 ISO 19902 2007 Code for the Design of Fixed Steel Offshore SUCES 6 05 sh ticki atts gniessa sees E 5S te hae els 5 2 6 ASCE4805 Code for the Design of Steel Transmission Pole SUCUS og et thas intents aie hae dee tetas ds ated ee A eed Analysts Prerelease PCauires 4 ninrukacethsotvedew ey a phoned 5 3 1 Calculate Error Estimate Command _ jv 5 4 General Pretelease Pears 5 cats seater geen occa sncada ce ata EAE EADS 5 4 1 Sack Rotate Lad Command eeorevri ta r ERNE tone E aE 5 4 1 5 4 2 Reference Coordinate System Command 5 4 5 5 4 2 1 Printing Reference Coordinate System Command 5 4 8 5 4 3 GTMenu Point Coordinates and Line Incidences Commands 5 4 9 This page intentionally left blank _yj GT STRUDL Introduction Chapter 1 Introduction Version 32 covers GISTRUDL operating on PC s under the Windows 7 Windows Vista and Windows XP operating syst
11. 188 gt OUTPUT FIELD F 189 gt OUTPUT DECIMAL 3 190 gt LIST JOINT FORCES JOINT 3 RESULTANT JOINT FORCES OUTPUT BY LOADING MEMBER REF JOINT ELEMENT FRAME FORCES MOMENTS ECC FORCE X FORCE Y FORCE Z MOMENT X MOMENT Y MOMENT Z 3 1 LOCAL 6 148 6 119 0 000 0 000 0 000 11 185 NO 3 2 LOCAL 6 148 6 119 0 000 0 000 0 000 11 185 NO 3 3 LOCAL 6 119 6 148 0 000 0 000 0 000 11 476 NO 3 4 LOCAL 6 119 6 148 0 000 0 000 0 000 11 476 NO 191 gt LIST JOINT FORCES GLOBAL JOINT 3 GLOBAL joint forces output by loading MEMBER REF JOINT ELEMENT FRAME FORCES MOMENTS ECC FORCE X FORCE Y FORCE Z MOMENT X MOMENT Y MOMENT Z 3 1 GLOBAL 6 119 6 148 0 000 0 000 0 000 11 185 NO 3 2 GLOBAL 6 119 6 148 0 000 0 000 0 000 11 185 NO 3 3 GLOBAL 6 119 6 148 0 000 0 000 0 000 11 476 NO 3 4 GLOBAL 6 119 6 148 0 000 0 000 0 000 11 476 NO 192 gt LIST JOINT FORCES GLOBAL WITH TOTAL JOINT 3 New Features GT STRUDL GLOBAL joint forces output by loading MEMBER REF JOINT ELEMENT FRAME FORCES MOMENTS FORCE
12. 5 5 7 Volume 3 Transient Analysis Section 2 4 5 5 8 Volume 3 Direction Integration PHYSICAL Analysis 3 The COMPUTE MODAL DAMPING RATIO AVERAGE BY ELEMENT command has been enhanced such that a contribution to the composite modal damping ratios are now computed for viscous damper elements Documentation Section 2 4 3 4 Volume 3 Specification of Damping Properties Section 2 4 3 7 Volume 3 The Viscous Damper Element for Linear and Nonlinear Dynamic Analysis New Features GT STRUDL 2 3 Finite Elements A new 8 node solid element called the IPSLIM has been implemented This new element has the same node ordering as the IPSL and IPLS elements This new element is more flexible than the IPSL and IPLS elements and will converge faster A comparison of the results for the example of a cantilever beam presented in Section 2 3 9 3 of Volume 3 of the User Reference Manual is shown below ELEMENT MESH SXX STRESS ksi MAXIMUM DISPLACEMENT in x 9 y 0 7 2 x 21 y 2 z 2 IPLS B 1 2 280 0 0552 B 2 2 448 0 0597 IPQS B 1 2 492 0 0613 IPSL B 2 2 448 0 0597 IPSLIM B 1 2 499 0 0613 B 2 2 500 0 0613 IPSQ B 2 2 500 0 0612 THEORETICAL 30 2 500 0 0612 The IPSLIM element not only converges faster than the IPSL and IPLS but produces almost the same results for the same number of elements as the twenty noded IPSQ and IPQS elements Three new four node elements have been implemented A new plane stress called the Q
13. Fixed steel offshore structures has been implemented as a prerelease feature The GTSTRUDL code name for this new offshore code is 19902 07 The 19902 07 code performs Basic Hydrostatic Pressure and Punching Shear stresses check according to International Standard ISO 19902 2007 E This new code 19902 07 may be used to select or check Circular Hollow Sections Pipes The prerelease documentation for the 19902 07 code may be found by selecting the help menu and then Reference Documentation Reference Manuals Offshore Loading Analysis and Design and 19902 07 ISO 19902 2007 E First Edition in the GTSTRUDL Output Window 52 1 Design Prerelease Features ISO 19902 Code 5 2 6 ASCE4805 Code for the Design of Steel Transmission Pole Structures The steel design code ASCE4805 which is based on the 2005 edition of the ASCE SEI Design of Steel Transmission Pole Structures Specification has been implemented as a pre release feature The ASCE SEI 48 05 Specification is based on ultimate strength methods using factored loads The ASCE4805 Code may be used to select or check any of the following shapes Design for axial force bi axial bending and torsion Pipes Regular Polygonal Tubes Structural Tubing The documentation for the ASCE4805 code may be found by selecting the Help menu and then Reference Documentation Reference Manuals Steel Design and ASCE4805 in the GTSTRUDL Output Window 5 2 18 GT STRUDL The CALCULAT
14. Opening Reset Constraint Line Set the Mesh Size Mesh Generation Parameters Optimization Level Humber of Joints in Wlesh 954 Number of Elements in Mesh 578 New Features GT STRUDL An example of the boundary outline including the boundary around an internal opening is shown below FI ey we a AN AAE arab EN EN EN SA Ps VAVATAVAVATAYAV WAVAVAVAVAVAVAVAVATVAT VANA We NPN ES IN EN EN ENE NIN ENN ENS EN EN EN if ENP Sees hy VAVAUAVANAVAWA ihe AV AVAWAVANAT AS BAAS BOY VAN EN AWAVACEN VAAN ANA STAT NP NE SE INP SESE SE vs bx Fi IVENTA AV AVAY SVAVAVAV ATA WAVAVAVAV N AVA AT AV AVE Pavia CAV AVANAVAVAVAVATANA RAS ES PAENT AA A T EN SNN N SVAVAVAVAVAVAVAVAVAVAVAVAVAVAVAVANATAVAVAT AVE VAN DVAVAVAVAVAVAVAVAVAVAVAVAVAVAVAVAY AVA LY iy ENEN TAVANI VAVAVAVAVE WAV AVAV AVA VN AAAS ivf AVENE AVAVA ANAVEN AN ENESENN ENNAN OIII IIRI AVAVAVAVAVAVANAVAVAVAVAVAVAVAVAVAVAVAVAVAUAVAVAVAVAVAVAN AAAA aa PENNE SENE NI NENE SENENI NI NINI NINININI SENINI NINININI MENI NISI ANY AV eee oye SOO ER DOSER OSE A R AA AOS a Wey VA MAN PNINANENENANEN ENE NESE va ie AVAVAVAVAV AV AVAVAVAUATAVA NESE SESENENSS VA E TTE Ny APAANAN TAVAVATAVAWACAUA SIN ge 2 F s E NATATAE OE EN NE AT a 5 ea A AATA VAVAVAVAVANANA A NEA K PME NENEN SINE NESE SNES LV AV ATAU AVAVAUAVAVAU AVA Us a AAN
15. a slab with a shear wall In this case a misleading design could be generated 1f the slab was designed using the forces in the shear wall The cut definition constitutes all information required to compute the resultant forces acting along the cut The total moment acting on a cut cross section is computed using one of two methods The use of moment resultants also known as the Wood and Armer method 1s implemented as the default method In this method the moment resultants MXX MYY and MXY are resolved on a per node basis along the cut and either the average effect or the maximum effect on the cut 1s applied to the entire cross section The other option for moment computation 1s based on the use of element forces In this method the total resultant moment acting on the cross section 1s computed using the CALCULATE RESULTANT command and the element force nodal moments are resolved for each node of each element adjacent to the cut Once the cut has been defined the user may indicate parameters to be used to design the system The user may constrain the bar size or spacing to a certain value either for the top face bottom face or for both faces In this case the final design will utilize the information provided If the bar size is constrained the appropriate spacing of bars is determined If the bar spacing is constrained the appropriate bar size is determined In the case that the user supplies a bar size and spacing for the cut the ap
16. bottom face of the slab and compression on the top face as defined previously Negative bending produces tension on the top face and compression on the bottom face as defined previously Requirements The MATERIAL REINFORCED CONCRETE command must be specified before the DESIGN SLAB The MATERIAL REINFORCED CONCRETE command initializes the RC capabilities of GT STRUDL and sets the relevant material and design quantities to their default values for design At this point the user can issue the CONSTANTS command to modify any material properties to be used in the design The default values are ECU 0 003 ES 29 000 000 psi FCP 4000 psi FY 60 000 psi PHIFL 0 9 The STIFFNESS command must be issued prior to the DESIGN SLAB command The STIFFNESS command solves the global equilibrium equation and computes the quantities required for the determination of the bending moments that the DESIGN SLAB command uses 5 2 10 GT STRUDL DESIGN SLAB Command Only elements known to appropriately model the behavior of slab systems are included in the computation of design forces For a flat plate system only plate bending and plate elements are used Thus if the user models the system using plane stress plane strain elements and then issues the DESIGN SLAB command a warning message is output and the command is ignored Plate bending elements supported include the BPHT BPR BPHQ CPT and IPBQQ finite elements General plate elem
17. elements can now be displayed Split Members is now able to split ALL members The ALL option is now available on the Mode Bar You may now create new Member Property Groups when creating members A new Add Member Property Group option has been added to the Section Property Group dialog during member creation Member Elastic Connections are now listed in the Inquire Output pop up The efficiency of splitting members has been improved The color used for animation of mode shapes is now the same as the Attribute Color set for mode shape display Refining a finite element mesh is somewhat faster now in that it does not display the refinement until all elements have been split Previously the elements would be drawn as they were split Input files created from the File Generate GT STRUDL text input menu pick or from the GTMENU GENERATE INPUT FILE command now include loadings created with the CREATE LOADING COMBINATION TYPE RMS and CREATE LOADING COMBINATION TYPE ABSOLUTE commands Section 2 1 11 3 4 Volume 1 Because these loadings require results to exist they are generated as comments preceded by an informational comment which will be one line in the generated input file S This load must come after analysis commands gt Remove the to use this loading command For example if in the generated input file load 2002 appears like this S This load must come after analysis commands CREATE LOADING COMBINATION 2002 TYPE R
18. members or joints from the OBJECT group into a new group GPRE 99 26 Numerical precision problems will occur if joint coordinate values are specified in the JOINT COORDINATES command with more than a total of seven digits Similar precision problems will occur for joint coordinate data specified in automatic generation commands GPRF 2000 16 Internal member results will be incorrect under the following conditions I Dynamic analysis is performed response spectra or time history 2 Pseudo Static Loadings are created 3 Buckling Analysis is Performed 4 Internal member results are output or used in a subsequent steel design after the Buckling Analysis GT STRUDL GT STRUDL Known Deficiencies In addition the eigenvalues and eigenvectors from the Dynamic Analysis are overwritten by the eigenvalues and eigenvectors from the Buckling Analysis We consider this problem to be very rare since we had never encountered a job which contained both a Dynamic Analysis and a Buckling Analysis prior to this error report Workaround Execute the Buckling Analysis in a separate run which does not contain a dynamic analysis Alternatively execute the Buckling Analysis before the Dynamic Analysis and output the Buckling results and then perform a Dynamic Analysis The Dynamic Analysis results will then overwrite the buckling multiplier and mode shape which 1s acceptable since the buckling results have been output and are not used in any sub
19. now write construction geometry commands to an input file which can be read later into GISTRUDL in order to initialize the construction geometry of GTMenu The two commands written are GTMenu POINT COORDINATES and GTMenu LINE INCIDENCES 1 GTMenu POINT COORDINATES General Form GTMenu POINT COORDINATES coordinate specs a la D coordinate specs ay Elements coordinate specs X v Y v Z v Where P N _ unsigned integer Point identifiers Ais bu a 1 to 8 character alphanumeric Point identifiers Vi V gt V3 Cartesian Point coordinates integer or real 5 4 9 Analysis Prerelease Features GT STRUDL 2 GTMenu LINE INCIDENCES General Form GTMenu LINE INCIDENCES l type incidence specs a 1 type incidence specs Elements gt LINE POLYNOMINAL CURVE ARC TEMPLATE type CENTERED ARC PERCENT v BEZIER CURVE SPLINE CURVE ORDER k incidence specs 5 4 10 GT STRUDL GTMenu Point and Line Incidences Commands Where Pere eres N unsigned integer Line Curve identifiers Arr age 1 to 8 character alphanumeric Line Curve identifiers bobiga unsigned integer Point identifiers used Aa Pe 1 to 8 character alphanumeric Point identifiers V positive number integer or real k integer between 2 and the number of incidences 12s sD Point subscripts for a Line Curve The following table gives the number of Points used to specify different types of Line Curve
20. only the transmission tower slenderness ratios SLENT and SLENC are checked as pass fail provisions Previously all slenderness ratios L r KL r B7 TEN B7 COMP SLENT and SLENC transmission tower AISC13 and ASD9 were checked as a pass fail provisions Additional error checking for parameters CODE TBLNAM and STEELGRD have been added into the steel design parameter command The user specified parameter values for the parameters CODE TBLNAM and STEELGRD are now checked against accepted GT STRUDL New Features values and if the specified value is incorrect an error message 1s given and the scan mode is Set 6 Efficiency improvements have been made to both the member selection and code checking functions when the external file solver is active and analysis results are stored in files on external storage devices In particular virtual memory demands have been reduced enabling the CHECK and SELECT commands to handle the required numbers of members and loading conditions more efficiently The external file solver is activated by the ACTIVE SOLVER GTSES or GT64M command Section 2 1 13 4 Volume 1 or when the GTSES or GT64M options are specified in the STIFFNESS ANALYSIS command Section 2 1 13 2 Volume 1 or the SOLVE option of the EIGENPROBLEM PARAMETERS command Section 2 4 5 2 Volume 3 Te Geometric checks in Codes N690 94 NF 2004 and NF 2007 for local stability are now stored as informative checks This will prevent GTSTRUDL fro
21. the brace 2 Figure 2 8 1 Thickened can capacity computation requires the user to specify a value for parameter Tc c Can 0 0 Thickened can distance c to the brace 3 Figure 2 8 1 Thickened can capacity computation requires the user to specify a value for parameter Tc 2 37 New Features Brace GT STRUDL Nominal Chord n Brace 3 d3 Brace i 2a d 2 2b d sin O 3 2c d Figure 2 8 1 Chord thickened can geometry GT STRUDL New Features Le The offshore steel design code APIWSD21 which is based on the API Recommended Practice 2A WSD RP 2A WSD Twenty First Edition steel design code for Basic Stresses Hydrostatic Pressure and Punching Shear has been moved to the release status The documentation for the APIWSD21 code may be found by selecting the Help menu and then Reference Documentation Reference Manuals Offshore Loading Analysis and Design and then APIWSD21 API RP 2A WSD 21 Edition in the GTSTRUDL Output Window A new International Standard ISO 19902 2007 E First Edition 2007 12 01 Petroleum and natural gas industries Fixed steel offshore structures has been implemented as a prerelease feature The GTSTRUDL code name for this new offshore code is 19902 07 The 19902 07 code performs Basic Hydrostatic Pressure and Punching Shear stresses check according to International Standard ISO 19902 2007 E This new code 19902 07 may be used to select or che
22. the stress the average stress becomes very small and often close to zero As a result the value of the error becomes enormous In order to quantify this error the error at such nodes is given a value of 1 000 percent The final two normalized percentage methods are usually the best at quantifying overall errors in area with peak stress values The results produced by the CALCULATE ERROR ESTIMATE command may also be contoured in GTMenu To produce a contour of the error estimate in GTMenu follow the steps below after performing a STIFFNESS ANALYSIS for a static loading 1 Enter GTMenu 2 Select Results Finite Element Contours and then Energy amp Stress Error Estimates 3 Select the Estimate Method including Value Surface and Stress Component 4 Select the Loading 5 Select Display solid colors or lines to produce a contour of the error estimate 6 Select Legend to place a legend on the screen indicating the type of error estimate loading and surface 5 3 4 GT STRUDL Viscous Damper Element 5 4 General Prerelease Features 5 4 1 ROTATE LOAD Command The ROTATE LOAD command will rotate an existing loading and create a new loading condition in order to model a different orientation of the structure or the loading The ROTATE command is described below and is numbered as it will appear when added to Volume 1 of the GISTRUDL User Reference Manual 2 1 11 4 66 The ROTATE LOAD Command General form Ip ROTATE LOADING
23. to the IPBQQ element Tridimensional 6 node TRIP maps to the WEDGE15 element Tridimensional 8 node bricks map to the IPSQ element Plate triangles produce an error saying unavailable Plate quads produce an error saying unavailable The Generate Input File feature now generates an input file which includes the following Nonlinear Effects Nonlinear Spring Properties Nonlinear Spring Elements Object commands and group titles Elastic connections at the ends of members TYPE RIGID PINs When checking for duplicate items such as joints members or elements the duplicates are now labeled in the Graphical Display window 1f display is set for joints members or elements in the Label Settings dialog When checking for floating joints the floating joints are now labeled in the Graphical Display window 1f display is set for joints in the Label Settings dialog Finite elements are now labeled closer to their centroid Force and Moment Diagrams and value labels can now be rotated according to the Beta angles on the members A FY Diagram is plotted in the local xy plane by default a FZ Diagram is plotted in the local xz plane by default a MY Diagram is plotted in the local xz plane by default and a MZ diagram is plotted in the local xy plane by default 2 32 GT STRUDL New Features 23 24 25 26 Die 28 29 30 31 The Inquire dialog no longer disappears when the Graphics Window is activated Member loads on cable
24. with the Lanczos iteration process take advantage of 64 bit addressing on 64 bit platforms greatly increasing the number of degrees of freedom that can be treated and the number of modes that can be computed when compared to the GTLANCZOS and GTSELANCZOS methods The GT64MLANCZOS method is activated when the GT64M option is specified by the ACTIVE SOLVER command ACTIVE SOLVER GT64M GT STRUDL New Features or when the GI64MLANCZOS method is specified in the EIGENSOLUTION PARAMETERS command EIGENSOLUTION PARAMETERS SOLVE USING GT64MLANCZOS END Note that the GT64M solver suite is a premium feature and requires a separate fee license and password Documentation Section 2 1 13 Volume 1 The ACTIVE SOLVER Command Section 2 4 5 2 Volume 3 Eigenproblem Solution Specifications 2 Improvements are made to the consistency checking of the time point data for the execution of modal integration and direct integration time history analyses If the number of time points to be processed by these analyses exceeds the maximum allowable 4 000 000 the following error message is now given and the indicated action taken RAKES ERROR GTTEINI Maximum allowable number of integration time points 4 million exceeded for loading 1002 Scan mode entered and analysis terminated Documentation Section 2 4 5 4 Volume 3 The DYNAMIC ANALYSIS Command Section 2 4 5 5 6 Volume 3 Mode Superposition Analysis Section 2 4
25. 0 of the overall global coordinate system The Reference Coordinate System axes may also be rotated from the corresponding orthogonal axes of the overall global coordinate system At the present time this command is used to specify additional coordinate systems which may be used in GTMenu see Volume 2 of the GTSTRUDL Release Guide to facilitate the creation of the structural model Reference Coordinate systems created using the above command will be available as Local systems in GTMenu In a future release the user will be able to output results such as joint displacements and reactions in a Reference Coordinate System There are two optional means of specifying a Reference Coordinate System 1 Define the origin and rotation of coordinate axes of the reference system with respect to the global coordinate system and 2 define three joints or the coordinates of three points in space In either case 1 or a 1s the integer or alphanumeric identifier of the reference coordinate system For the first option v v and v are the magnitude of translations in active length units of the origin of this system from the origin of the overall global coordinate system The translations v v and v are measured parallel to the orthogonal axes X Y and Z respectively of the global system and are positive in the positive directions of these axes v v and v are the rotation 5 4 5 General Prerelease Features GT STRUDL angles R
26. 0 degrees about global Z b REF COO 1 X 120 Y 120 Z 120 X 120 Y 240 Z 0 X 120 Y 1200 Z 0 This command creates Reference Coordinate System with its origin at 120 120 120 and its X axis from this origin to 120 240 0 and its Y axis is the plane defined by the two previous coordinates and the third coordinate 120 120 0 with the positive Y axis directed toward the third coordinate C REFERENCE COORDINATE SYSTEM 2 JOINT 10 JOINT 20 JOINT 25 This command creates Reference Coordinate System 2 with its origin located at Joint 10 and its X axis directed from Joint 10 toward Joint 20 The XY plane is defined by Joints 10 20 and 25 with the positive Y axis directed toward Joint 25 d CHANGES REFERENCE COORDINATE SYSTEM FLOOR ORIGIN 10 20 30 ADDITIONS The above commands change the origin of the Reference System FLOOR2 defined ina above The rotation RI 30 remains unchanged e DELETIONS REFERENCE SYSTEM 2 ADDITIONS The above command deletes Reference System 2 5 4 7 General Prerelease Features GT STRUDL 5 4 2 1 Printing Reference Coordinate System Command General form ALL PRINT REFERENCE COORDINATE SYSTEM y list Explanation The PRINT REFERENCE COORDINATE SYSTEM command will output the Reference Systems The origin and rotation angles will be output 5 4 8 GT STRUDL GTMenu Point and Line Incidences Commands 5 4 3 GTMenu Point and Line Incidences Commands GTMenu can
27. 11 Steel Tables and GITABLE 0 0 0 eee 2 42 DAD Bae PIME Wizard eins oo 4 amp eas 2 hace BAe ih et eae Bh aes A ee os ewes 2 42 2 13 Base Plate Anchors nnnnnnnnnnn dd atarenh aed amp ath edd bed a dees 2 47 ZAG COPS EGUOL 6 0 25 cede bee ace Ri eo bes Lo ee aoe es oe tt 2 49 CHAPTER 3 ERROR CORRECTIONS Del e hea ctuaten are ded ao eee Sacra aati ase on aoe lovey dt nae at se Se at amie eye Sate ates 3 1 32 Dynamic Analysis nye wats Hoe 62s bat be alee Kies ee ee a ee a EA 3 2 3 0 JExtemlal Pile SOWE 4404255042 pac eee lh o4e Sew een teeth eee es 3 2 SA Fore LIENIG scenie sorn tek Git ped le egies a nc wed ch Gi ele eves en 3 2 Pm 1 cr 0 cere eee eR ae E E OE a 20 Vr MCI tect barn aa aoe acd ee eh oe bec ae ee eee Sah Mode rW Za 1 sss a ahs e Sn OG 4 GEARS Ad Ae OR AMS E S 328 Nonnea ANALYSIS seoaren dae eh OS ote a he ee eh oie So OUSMONC meee y oi een Vee Ree ol Re neh was ba ae eens lO Sta AMAIV SIS geo on deans deh ed ade sel ge dn Rad ed a See Aas OHO Seek Seer CSIC a5 cee arine dae ke 6 aed eras ton beak See ware ee es CHAPTER 4 KNOWN DEFICIENCIES 4 1 4 2 4 3 4 4 4 5 Finite Elements 0 0 cc cee ec ce ee eee e eee eee nennas General Input Output lt 24 gis Sak eee he oe wa 6 eh ae CGIN 4 2 3 oe eae oe ee ae es ee ES ee caer eee SOPE BMY IONN EN eserita teiaa oes oh nes Ree eee atk eee ate oes Offshore Analysis and Design GTSELOS
28. 1s for the ultimate strength design of steel transmission pole structures 5 3 Analysis Prerelease Features 5 3 1 Calculate Error Estimate Command Introduction GT STRUDL 5 4 General Prerelease Features 5 4 1 Rotate Load Command 5 4 2 Reference Coordinate System Command 5 4 3 GTMenu Point Coordinates and Line Incidences Commands We encourage you to experiment with these prerelease features and provide us with suggestions to improve these features as well as other GISTRUDL capabilities GT STRUDL New Features Chapter 2 New Features in Version 32 This chapter provides you with details regarding new features and enhancements that have been added to many of the functional areas of GTISTRUDL in Version 32 This release guide is also available online upon execution of GTSTRUDL under Help Reference Documentation GT STRUDL Release Guide 2 1 DBX WRITE CODE CHECK RESULTS has been added This DBX file contains the same data as found in the output from LIST CODE CHECK RESULTS ASCII80 and BINARY sequential formats are supported Syntax WRITE CODE CHECK RESULTS MEMBERS list Examples WRITE CODE ALL MEMBERS WRITE CODE RES MEMBERS EXISTING 1 TO 1000 Documentation Section 2 1 14 4 3 The LIST CODE CHECK RESULTS Command Volume 1 GTSTRUDL Reference Manual Summary of DBX Commands The WRITE Command Volume 5 GTSTRUDL Reference Manual Table 1 30 Volume 5 GTSTRUDL Reference Manual Th
29. 21 P 262 9 2000 0 0 1315 106 0 1500 0 0 0707 B2 0 1252 P 109 0 2000 0 0 0545 106 1 1500 0 0 0707 New Features GT STRUDL 9 The Anchor Results dialog has a new option to create commands for the ANCHOR CONFIGURATION command Section 2 9 2 The ANCHOR CONFIGURATION Command Volume 3 GTSTRUDL Reference Manual You can create commands to transfer the calculated loads for each anchor and optionally the anchor coordinates from the Base Plate Wizard to a GTSTRUDL input file used to check the anchor capacity with ACI Appendix D Click the Write ANCHOR LOADS button to bring up the Write Anchor command dialog White to file Write ANCHOR LOADS Order by Anchor Order by Load 1 1563 P 1312 5 K 1 3073 F 1447 9 1 03538 P 1167 5 Leset F 1302 1 Write ANCHOR commands x ANCHOR command file to be created 4nchorCommands txk joe iM Include Anchor coordinates if Open command file in Notepad Cancel See Section 11 Results in the Base Plate Wizard User Guide GT STRUDL New Features 10 2 13 Two new Anchor Patterns have been added 4 corners interior fill to create a grid of anchors and Arc Circle to place anchors in a circular arrangement See Section 4 1 Adding Anchors for documentation of these two new patterns The new Anchor Patterns dialog looks like this Anchor Patterns Doubly Symmetric Patterns 4 comers 4 comers top 4 comers 4 comers and bottom
30. 6CDRL and a new plate bending element called the PBMITC have been implemented These elements were combined to form a new four node flat plate element called the SBMITC which has six degrees of freedom per node The Q6CDRL is an isoparametric four node element based on a variational formulation This formulation provides a rotational degree of freedom about the planar z axis commonly referred to as the drilling degree of freedom This drilling degree of freedom is very useful for interaction with plane frame elements In addition incompatible modes with a correction method were implemented in order to avoid shear locking The Q6CDRL successfully addresses all other common issues of plane stress elements such as spurious modes failure to pass the patch test and geometric invariance 2 4 GT STRUDL 2 4 The PBMITC element is based on the well known MITC4 element mixed interpolation of tensorial components It is an isoparametric four node plate bending element based on Mindlin s plate theory which includes transverse shear strains applicable for moderately thick plates This element does not exhibit any of the common thick plate bending issues such as shear locking and spurious modes By combining the Q6CDRL and PBMITC uncoupled in plane and out of plane behavior a versatile four node isoparametric flat plate element SBMITC is now available for general use in shell and plate problems General PRINT MEMBER LENGTH SORTED LI
31. 999 ACI code has been added Only members designated as TYPE BEAM or TYPE COLUMN in a DESIGN DATA command can be PROPORTIONed when the METHOD is set to ACI318 99 When you specify ACI318 99 you will be reminded that it is a pre release feature by a message see the Example below Note that CHECK is not available for codes after ACI3 18 77 including ACI318 99 ACI318 99 ACI3 18 89 ACI318 83 ULTIMATE STRENGTH METHOD ACI318 77 7 WORKING STRESS ACI318 63 BSI CP110 72 BSI BS8110 ASTM NONSEISMIC CANADIAN STANDARD BARS SEISMIC UNESCO MODERATE SEISMIC KOREAN STANDARD Example METHOD ACI318 99 EEXINFO MET 318 99 is a pre release feature DESIGN DATA FOR MEMBER 1 TYPE BEAM RECT PROPORTION MEMBER 1 ACTIVE CODE ACI 318 99 the rest of the output is the same format as previous codes S22 GT STRUDL ACI Code 318 99 The table of CONSTANTS and assumed values for ACI 318 99 is shown below TABLE 2 4 1 CONSTANTS and Assumed Values for ACI 318 99 CONSTANT FCP pa DENSITY PMINCO PMINFL ES EC EU Explanation Compressive strength of concrete f Yield strength of reinforcement f Unit weight of plain concrete Unit weight of reinforced concrete Allow compr stress in concrete F Ult shear stress in beam with web reinf Allow shear stress in beam with web reinf Splitting ratio f Vf Yield strength of stirrups Yield strength of sp
32. AN WNA KNAS ANAN SNAN NATE NANA VAN ANA UTAN ATAN SNAN ANE NN WSS NNNSN SUSANN NVVN NNNSNN a a E r z ofl i aoe a llr are ela tre z wa AF tars ae EA Zo A A aa Gay A ao Z Z A a 72 agar BZ DEJ Ze ar A ime wt os Z Z Y YZ Z Z 7 Z i Z Z Z Z Z Z Z Z Aa HA 26 aa A A ZZ 2 LG 0G VAY VAY a ha ZG H4 I AAH BAH AIA ZAG 44 AZ LUG BAA AI LAA AAZ AIZ AZ ALAA CULE ase LLG AAA AAA AAN NA A Sat ooo rs s E gee FS se MI MA AA A LUG SLUG Z Z Z 2 r Page ie VA A Y Z Z i ree rd led KAZ MA Z A A A Z 2 A NRIS N NN RNS HISSSSSSNSSSSSSSTSRSSS ANS SSN NNNSN SISS NNNSNN ISSS Za WINANS NNVNVNVVINNVUYUVIVVVVOan ti ZG m2 2 54 GT STRUDL New Features 7 The Options dialog available from the View menu has a new option to specify a Landscape template to be used when GTMenu sends a file in Landscape orientation Scope Editor Options m Automatically select the Axis components of files imported from GTMenu Templates Automatically apply a template to new files iv Automatically apply a template to files imported from GTMenu Automatic Template File Location C Users Wade MA422 KW8 X1 Desktop E vj Automatically apply a template
33. ANGLES T1 r T2 r T3 s rd Elements ik a Integer or alphanumeric name of the existing independent loading condition whose global components are to be rotated r rar values in current angle units of the load component rotation angles 0 0 0 as shown in Figure 2 1 7 1 Volume 1 GISTRUDL User Reference Manual Explanation In many instances loading conditions are defined for a structure having a given orientation in space but then the same structure may need to be analyzed for different additional orientations Applied loading components that are defined with respect to local member or element coordinate systems remain unchanged regardless of the structure s orientation However loading components that are defined with respect to the global coordinate system may need to be rotated in order to properly reflect a new orientation for the structure This is particularly true for self weight loads buoyancy loads etc 5 4 General Prerelease Features GT STRUDL The ROTATE LOADING command is used to take the global applied loading components from an existing loading condition rotate them through a set of rotation angles and copy the new rotated global components to a new or modified different destination loading condition The existing independent loading condition the ROTATE load from which the rotated global load components are computed 1s specified by the loading name 1 a The angles of rotation are speci
34. C16X18 REC6X20 REC8X20 REC10X20 REC12X20 REC14X20 REC16X20 REC6X22 REC8X22 REC10X22 REC12X22 REC14X22 REC16X22 REC6X24 REC8X24 REC10X24 REC12X24 REC14X24 REC16X24 REC6X26 REC8X26 REC10X26 REC12X26 REC14X26 REC16X26 REC6X28 REC8X28 REC10X28 REC12X28 REC14X28 REC16X28 REC6X30 REC8X30 REC10X30 REC12X30 REC14X30 REC16X30 REC6X32 REC8X32 REC10X32 REC12X32 REC14X32 REC16X32 REC6X34 REC8X34 REC10X34 REC12X34 REC14X34 REC16X34 REC6X36 REC8X36 REC10X36 REC12X36 REC14X36 REC16X36 SLS REC18X12 REC18X14 REC18X16 REC18X18 REC18X20 REC18X22 REC18X24 REC18X26 REC18X28 REC18X30 REC18X32 REC18X34 REC18X36 REC30X12 REC30X14 REC30X16 REC30X18 REC30X20 REC30X22 REC30X24 REC30X26 REC30X28 REC30X30 REC30X32 REC30X34 REC30X36 REC20X12 REC20X14 REC20X16 REC20X18 REC20X20 REC20X22 REC20X24 REC20X26 REC20X28 REC20X30 REC20X32 REC20X34 REC20X36 REC32X12 REC32xX14 REC32X16 REC32X18 REC32X20 REC32X22 REC32X24 REC32X26 REC32X28 REC32X30 REC32X32 REC32X34 REC32X36 REC22XxX12 REC22Xx14 REC22X16 REC22X18 REC22X20 REC22X22 REC22X24 REC22X26 REC22X28 REC22X30 REC22X32 REC22X34 REC22X36 REC34X12 REC34X14 REC34X16 REC34X18 REC34X20 REC34X22 REC34X24 REC34X26 REC34X28 REC34X30 REC34X32 REC34X34 REC34X36 REC24X12 REC24X14 REC24X16 REC24X18 REC24X20 REC24X22 REC24X24 REC24X26 REC24X28 REC24X30 REC24X32 REC24X34 REC24X36 REC36X12 REC36X14 REC36X16 REC36X18 REC36X20 REC36X22 REC36X24 REC36X26
35. E ERROR ESTIMATE Command 5 3 Analysis Prerelease Features 5 3 1 The CALCULATE ERROR ESTIMATE Command The form of the command 1s as follows CALCULATE ERROR ESTIMATE BASED ON ENERGY NORM MAX DIFFERENCE DIFFERENCE FROM AVERAGE PERCENT MAX DIFFERENCE 7 PERCENT DIFFERENCE FROM AVERAGE NORMALIZED PERCENT MAX DIFFERENCE NORMALIZED PERCENT DIFFERENCE FROM AVERAGE G TOP ALL AT lt MIDDLE SURFACES FOR BOTTOM ELEMENT list The results from this command provide an estimate of the errors in the finite element discretization of the problem Energy norm L norm and nodal error estimates are available The L norm is given by fey enjoa Q le where e is the error in stress and Q is the domain of the element The error stress is the difference between the average stress 9 and element stress at the nodes o The stress norm is obtained by using the shape functions used for displacements thus o 0 NT N 0 7 0 e lt Q leslr where N is the shape functions used for the assumed displacement field of the element 5 3 1 Analysis Prerelease Features GT STRUDL The stress norm uses the average stresses and is given by 1 2 lol Ilo NT N o d0 The relative percentage error which is output for each element is given by The nodal error estimates estimate the accuracy of the data in a selected nodal output vector n e x 100 Oo ol le
36. GT STRUDL Version 32 Release Guide Volume 1 of 2 June 2012 Computer Aided Structural Engineering Center School of Civil amp Environmental Engineering Georgia Institute of Technology Atlanta Georgia 30332 0355 U S A Telephone 404 894 2260 Fax 404 894 8014 e mail casec ce gatech edu NOTICES This GTSTRUDL Release Guide is applicable to Version 32 with a release date in the GTSTRUDL title block of June 2012 The GISTRUDLg computer program is proprietary to and a trade secret of the Georgia Tech Research Corporation Atlanta Georgia U S A DISCLAIMER NEITHER GEORGIA TECH RESEARCH CORPORATION NOR GEORGIA INSTITUTE OF TECHNOLOGY MAKE ANY WARRANTY EXPRESSED OR IMPLIED AS TO THE DOCUMENTATION FUNCTION OR PERFORMANCE OF THE PROGRAM DESCRIBED HEREIN AND THE USER OF THE PROGRAM IS EXPECTED TO MAKE THE FINAL EVALUATION AS TO THE USEFULNESS OF THE PROGRAM IN THEIR OWN ENVIRONMENT Commercial Software Rights Legend Any use duplication or disclosure of this software by or for the U S Government shall be restricted to the terms of a license agreement in accordance with the clause at DFARS 227 7202 3 June 2005 This material may be reproduced by or for the U S Government pursuant to the copyright license under the clause at DFARS 252 227 7013 September 1989 Copyright 2012 Georgia Tech Research Corporation Atlanta Georgia 30332 0355 U S A ALL RIGHTS RESERVED GTSTRUDL is a registered serv
37. MIT v now prints the total number of members that meet the specified limit after the list of member lengths This only applies to LIMITS with decimal numbers which indicates a length value and where the number of members meeting the criterium is unknown and not to LIMITS with an integer number which indicates a specified number of member lengths to print Example 4367 gt UNITS CM 4368 gt PRINT MEMBER LENGTH SORTED LIMIT 20 0 output omitted FARE ANE Oe Pie ay FOUNGA 10 members lt 20 000 Documentation Section 2 1 14 2 1 PRINT MEMBER LENGTH SORTED Volume 1 GTSTRUDL Reference Manual A new option has been added to the PRINT command PRINT MEMBER BETA ANGLES which allows you to print only BETA angles without the other CONSTANTS Syntax PRINT MEMBER BETA ANGLES NONZERO ONLY TOLERANCE v INDIVIDUALLY DEGREES GROUPED TOLERANCE eee l COMMAND FORMAT MEMBERS list 2 5 New Features New Features GT STRUDL Examples PRINT MEMBER BETA ANGLES NONZERO ONLY TOLERANCE 0 1 DEGREES PRINT MEMBER BETA GROUPED COMMAND FORMAT Documentation Section 2 1 14 2 3 PRINT MEMBER BETA ANGLES Volume 1 GTSTRUDL Reference Manual 3 A GLOBAL option has been added to LIST FORCES This option will print member forces in the global reference frame instead of the standard local member reference frame Syntax LIST FORCES GLOBAL Example LIST FORCES GLOBAL MEMBERS 1 TO 10 Documenta
38. MS S SPEC 2001 0000 2399 Togo New Features GT STRUDL 32 33 Add the appropriate analysis commands and remove the comment characters for load 2002 COMPUTE RESPONSE SPECTRUM DISPLACEMENTS FORCES REACTIONS MODAL COMBINATIONS RMS COC UNITS CYCLES SECOND FORM MISSING MASS LOAD 999 MISSING MASS LOAD FROM RESPONSE SPECTRUM LOAD 1001 CUTOFF FREQUENCY 8 529112 DAMPING RATIO 0 10 LOAD LIST 999 STIFFNESS ANALYSIS CREATE LOADING COMBINATION 2002 TYPE RMS SPEC ZO 1 0000 299 I 0000 The Button Bar now has hotkeys as follows lt ctrl gt p for print lt ctrl gt q for query lt ctrl gt a for annotate lt ctrl gt t for label settings lt ctrl gt z for zoom lt ctrl gt r for rotate lt ctrl gt d for redraw wireframe lt ctrl gt s for redraw solid Graphics hotkeys have been adapted to the Diagram window produced from the Member Results dialog Results gt Member Results Graphs specifically m inquire for the current member men J inquire for the current joints GT STRUDL New Features 2 6 GTSTRUDL Output Window l The Macros dialog has been improved to allow the use of a Personal Macros folder not in the Common Macros folder which previously was the only option Separate Personal Macros are only available if you enable them in the Macros page in the GTSTRUDL Options dialog If the Use a separate Personal Macros folder box is not checked Personal Macros are assumed to be located in
39. Moment Required T 2 864 1664920 7 671358 2 5 2 15 Design Prerelease Features ISO 19902 Code The GTSTRUDL output for this example is as follows FLAT PLATE SLAB DESIGN BASED ON THE RESULTS OF FINITE ELEMENT ANALYSIS PROBLEM VFE103 TITLE DESIGN SLAB VERIFICATION VERIFY DESIGN CALCULATIONS RELEVANT ACTIVE UNITS INCH LB NUMBER OF ACTIVE LOADINGS 1 REINFORCEMENT ORIENTATION PERPENDICULAR TO A CUT BEGINNING AT NODE 166 AND TERMINATING AT NODE 176 AND IN THE PLANE OF ELEMENT 141 xx WOOD amp ARMER IMPLEMENTATION Design uSing average result acting on section DESIGN MOMENT ENVELOPE NEGATIVE MOMENT 0 00 DUE TO LOAD 150psf POSITIVE MOMENT 671358 19 DUE TO LOAD 150ps f NOTE Negative moment produces tension on the positive PLANAR Z surface bars requiring TOP Positive moment produces compression on the positive PLANAR Z surface BOTTOM bars requiring we SLAB CROSS SECTION Width Depth FCP FY Cover Layer 120 00 12 00 4000 00 60000 00 0 750 Outer xx DESIGN RESULTS per ACI 318 05 gt Face Bar Spacing AS PROV D MOMENT STRENGTH MOMENT REQ D STATUS TOP Reinforcement Not Required BOTTOM M14 10 000 2 864 1664920 7190 671358 1875 PASSES 5 2 16 GT STRUDL DESIGN SLAB Command 5 2 5 ISO 19902 2007 Code for the Design of Fixed Steel Offshore Structures A new International Standard ISO 19902 2007 E First Edition 2007 12 01 Petroleum and natural gas industries
40. TRUDL Error Corrections 6 The LOCATE DUPLICATE JOINTS command no longer possibly aborts when properties have not been specified for the existing members or elements The absence of properties did not always cause an abort but now the absence of properties is handled properly in all situations GPRF 2011 10 7 The GTSTRUDL abort which may occur when the external file solver is active has been eliminated The abort was reported one time under the very extreme conditions ofa very large model having numerous and assorted stiffness and dynamic analyses and is therefore deemed very unlikely to occur The external file solver writes and stores analysis results in files on the hard drive and is activated in conjunction with the activation of the high performance sparse equation solvers when the ACTIVE SOLVER GTSES GT64M command is given prior to any subsequent stiffness and dynamic analysis executions The external file solver also is activated by the DYNAMIC PARAMETERS USE EXTERNAL FILE SOLVER command GPRF 2011 14 8 The abort of the FORM UBC97 LOAD command caused by the presence of undefined joints has been corrected GPRF 2011 15 9 The DEAD LOAD and SELF WEIGHT LOAD commands with the INCLUDE FINITE ELEMENTS option now state that the dead load for IPCABLE elements is not computed No GPREF issued 10 The CALCULATE PRESSURE command no longer aborts 1f the GTSES GT64M solvers are used No GPREF issued 11 The error that limite
41. X FORCE Y FORCE Z MOMENT X MOMENT Y MOMENT Z 3 1 GLOBAL 6 119 6 148 0 000 0 000 0 000 185 3 2 GLOBAL 6 119 6 148 0 000 0 000 0 000 11 185 3 3 GLOBAL 6 119 6 148 0 000 0 000 0 000 476 3 4 GLOBAL 6 119 6 148 0 000 0 000 0 000 11 476 Totals 0 000 0 000 0 000 0 000 0 000 0 000 193 gt LIST JOINT FORCES GLOBAL WITH TOTAL JOINT 3 MEMBERS 1 2 GLOBAL joint forces output by loading MEMBER REF JOINT ELEMENT FRAME FORCES MOMENT S FORCE X FORCE Y FORCE Z MOMENT X MOMENT Y MOMENT Z 3 1 GLOBAL 6 119 6 148 0 000 0 000 0 000 11 185 3 2 GLOBAL 6 119 6 148 0 000 0 000 0 000 11 185 Totals 012 237 12 295 0 000 0 000 0 000 0 000 Documentation Section 2 1 14 4 Static Analysis Computed Results LIST Command Volume 1 GTSTRUDL Reference Manual 5 Modest efficiency and performance improvements have been made to the GTSES NO NO NO NO stiffness analysis solver However the solver remains a single processor 32 bit solver governed by 32 bit virtual memory allocation and addressing limitations Documentation Section 2 1 13 2 The STIFFNESS ANALYSIS Command Volume 1 Section 2 1 13 3 2 Split Solver Static Analysis Using the GTSES GT64M Sparse Equation Solvers Volume 1 Section 2 1 13 4 The ACTIVE SOLVER Command Volume 1 6 The RENAME command has been added This command allows you to change the name
42. and sequence NONLINEAR EFFECTS GEOMETRY ALL MEMBERS NLS CONNECTION MEMBERS 5 6 START MOMENT Y My Z Mz NLS CONNECTION MEMBERS 7 START MOMENT Y My END MOMENT Y My In the commands above the fact that the NLS CONNECTION specs specify different nonlinear spring curves for different degrees of freedom among members 5 6 and 7 may precipitate this problem 3 During the nonlinear analysis the displacement or rotation of a NLS CONNECTION spring exceeds the displacement rotation bounds specified for the spring in the NONLINEAR SPRING PROPERTIES curve data When these conditions occur the nonlinear analysis may abort or terminate prematurely accompanied by an unintelligible error message This problem has been corrected GPRF 2011 07 Error Corrections GT STRUDL gt Nonlinear static analyses for multiple active loading conditions in which the friction bearing isolation element i e element type NLSFBI is used no longer encounter equilibrium convergence failures in the analyses for the second and subsequent loading conditions GPRF 2011 11 3 9 Offshore l The random abort of the PERFORM FATIGUE ANALYSIS command has been corrected This condition was caused by the case when the first wave of the wave data set has fewer time stepping points than a subsequent wave in the data set No GPREF issued 2 A sequence of PERFORM FATIGUE ANALYSIS DETERMINISTIC command executions following a COMPUTE FATIGUE LJF INCLUDE comma
43. bute Colors dialog below Gl Attribute Colors First select a Color Usage Change Contour Colors Change ltem Colors Redraw Solid three color option Thickness Flange web Member Releases Start End Deselection Mark Annotation Color Deformed Structure Mode Shape Members C Members Elements C Elements Force Moment Diagrams Envelopes Transient Animation alue line Members e Elements Graphics BackGround BG c Section lines B GT STRUDL New Features 4 A right mouse click can now be set using the Inquire Button so that only joint members or elements are selected This setting is retained until you change it using the Inquire Button By default the selection is set to All Types The right mouse click setting is now displayed at the top of the Graphics Display The Inquire Button pulldown and the display of the right mouse click setting at the top of the Graphics Display are shown below Arrow Keys Zoom Select Joints Only Select All Types Select Members Only Select Elements Only Select All Load Types Select Joint Loads Only Select Member Loads Only Select Element Loads Only Query Display Current Load Name New Features GT STRUDL 5 GTMenu can now produce selected result graphs for a member in a separate graphical display window The results available for selection are local y displacement local z displac
44. c segment equilibrium equations The specification of NGP 3 provides for improved plastic segment accuracy over a greater range of segment lengths when compared to that associated with NGP 2 the default value that was originally implemented as a fixed constant Example NONLINEAR EFFECTS PLASTIC SEGMENT NGP 3 END FIBER GEOMETRY NTF 2 NTW 1 NBF 14 ND 12 LH 10 0 STEEL FY 50 0 FSU 50 00001 ESU 1 0 MEMBER COL4 COL8 Documentation The NONLINEAR EFFECTS Command Section 2 5 2 1 Volume 3 of the GTStrudl Reference Manual In previous versions member loads could not be applied to members for which the PLASTIC SEGMENT nonlinear effect was specified This restriction has been removed and all member load types are now supported for the PLASTIC SEGMENT nonlinear effect Documentation The NONLINEAR EFFECTS Command Section 2 5 2 1 Volume 3 of the GTStrudl Reference Manual As of Version 32 the presence in the structural model of nonlinear elements of type s IPCABLE NLS NLS4PH and the friction bearing isolation element NLSFBI will prevent the execution of any linear static or dynamic analysis operation An example of a typical error message that is produced if this situation occurs is shown as follows 2 36 GT STRUDL New Features 29 TRAR ERROR CRNLED Nonlinear members or elements detected during the execution of a linear stiffness and or dynamic analysis Such members elements are not permitted for linear analyses S
45. can mode entered and analysis terminated If the nonlinearity present in a model is due only to specifications by the NONLINEAR EFFECTS command geometry tension compression only plastic hinge etc then all affected members will be assumed linear for any subsequent linear analysis operation static or dynamic Offshore The offshore APIWSD21 punching shear check now can perform a code check for joints with thickened cans Joints with thickened cans are discussed in the Section 4 3 5 of the API WSD 21 Edition Also see GISTRUDL s detailed discussion of joints with thickened cans in Section 4 4 Provisions 4 3 4 Pa c Qu c and Qf c of the APIWSD21 users reference manual There are four new parameters applicable to the joints with thickened cans option of the APIWSD21which are described as follows Parameter Default Name Value Meaning Thickened Can Parameters Tc 0 0 Thickness of the chord thickened can Figure 2 8 1 A user specified value initiates allowable capacity computation according to the Section 4 3 5 joints with thickened cans of the API WSD 21 Edition Chord with thickened can capacity computation requires the user to specify values for parameters Tc a Can b Can and c Can a Can 0 0 Thickened can distance a to the brace 1 Figure 2 8 1 Thickened can capacity computation requires the user to specify a value for parameter Tc b Can 0 0 Thickened can distance b to
46. ced satisfactory results However more extensive testing is required before the feature will be included as a released feature and documented in the GTSTRUDL User Reference Manual 2 The command formats may change in response to user feedback 3 The functionality of the feature may be enhanced in response to user feedback The Prerelease features are subdivided into Design Analysis and General categories The features in these categories are shown below 5 2 Design Prerelease Features 52a LRFD3 Steel Design Code Rather than use the LRFD3 code which is a prerelease feature users should use the AISC13 code which is now a released feature 5 22 ACI Concrete Code 318 99 Rather than use the 318 99 code which is a prerelease feature users should use the 318 05 code which is now a released feature se Rectangular and Circular Concrete Cross Section Tables 5 2 4 Design of Flat Plates Based on the Results of Finite Element Analysis The DESIGN SLAB Command ILS ISO 19902 2007 E code for fixed steel offshore structure 5 2 6 ASCE4805 Steel Design Code This code is for the ultimate strength design of steel transmission pole structures 5 1 1 Prerelease Features GT STRUDL 5 3 Analysis Prerelease Features 5 3 1 Calculate Error Estimate Command 5 4 General Prerelease Features 5 4 1 Rotate Load Command 5 4 2 Reference Coordinate System Command 5 4 3 GTMenu Point Coordinates and Line Incidences Commands We encourage you
47. ck Circular Hollow Sections Pipes The prerelease documentation for the 19902 07 code may be found by selecting the help menu and then Reference Documentation Reference Manuals Offshore Loading Analysis and Design and 19902 07 ISO 19902 2007 E First Edition in the GTSTRUDL Output Window The GTSELOS WAVE command has been enhanced to include the selection of an updated version of the STREAM FUNCTION wave model Section 7 10 Volume 7 User Reference Manual The original implementation of the stream function wave model was due to Dean 1965 and demonstrated significant deficiencies over a wide range of water depths The enhanced WAVE command provides for the additional selection of the Fenton 1988 stream function model which is a higher order Fourier Series solution that produces significantly improved solutions particularly in shallow water depths New Features GT STRUDL 2 10 Steel Design l Efficiency improvements have been added to the EC3 2005 code Time to code check CHECK or design SELECT for jobs with large number of loadings have been reduced Also the GTSES option has been improved to allow models with a large number of load cases to be processed more efficiently during a code check or design Under previous versions of GTSTRUDL the message below indicates that nonlinear analysis is required for code checking based on LRFD codes xx x x WARNING STTECC Code check based on the LRFD code requires nonlinear analysi
48. control squares the corner opposite the selected control square will be considered the anchor for scaling Left click and drag the corner of the bounding rectangle The bounding rectangle will resize When the desired size is reached release the left mouse button To leave the current scaling move only don t move the mouse before releasing e The selected elements will then be redrawn with the correct translation and scaling to fill the bounding rectangle New Features GT STRUDL lstiiads INNS INNIS INSSSSASSSSSSSS RYE WSS SASSSSSESEASSASESSAASSS SSS SS SASS NNYSSSSINSUISSS SST LYN SSSSSasss pa qs pp pps p s _q 3 3 SSS SASSY SASS SSSA SA NN VTISI SSSR NNN NNV VN ITIN VVVVYVTVVY SSNS SS SITIS SS NNTNSSSN WSS Ss SSS SSS SSSI PASS SANA ANS SAAR ARAN SAA SAA NANA ADA AA SANA AAA AS SS SS SS AA AS AS AR A RA SAS AA AAR ARAB AAO TAS SA AAAS SA NS SAAR ABA RA AA AAA SASS RS SOS RAL A AA SA SIS AR AR ARAL AAA ANANSI AB AAA AAS ENS NSSSSSISNSSSSSSSSSSSSS RUSSSSSSSSSSSSSSSNSSSS ARAKI HUN WAKING ANNI NNNISN NNSS ISSN NNNSN SNNNISSNNNNNINSNNNNS NSSSSSSSSNSSSSSSISS FNN NV VVV VVLVY E AN 1 ANAS Ih LN SSSA SSS 2 53 GT STRUDL New Features A SRE A RAR R RN AN SAS KAS k x PAS ASSIS SERVES ESS AS A ANR E A T T A N TAN E ATE h ANNALA A SS NS T T AT TAA T TA TA ATAN TATE ATE TATA TT T LA A SSS SS SS SE SESS T
49. d be required Cut 1 1 originates at node 1 and terminates at node 11 The elements along Cut 1 1 are elements 1 10 The command given for Cut 1 1 is DESIGN SLAB USING CALCULATE RESULTANT JOI 1 11 ELE 1 TOP BAR 5 52213 Design Prerelease Features ISO 19902 Code In this case the user requests that a slab cross section beginning at node 1 ending at node 11 and in the plane of element 1 be reinforced according to the section moment computed using the CALCULATE RESULTANT command The user has specified that 5 bars are to be used on the top surface indicating that spacing 1s to be computed The results of the DESIGN SLAB command are shown in the following table Moment Strength Moment Required 2 862 D n 006 4 1354381 5 The GTSTRUDL output for this example is as follows xx FLAT PLATE SLAB DESIGN BASED ON THE RESULTS OF FINITE ELEMENT ANALYSIS PROBLEM VFE103 TITLE DESIGN SLAB VERIFICATION VERIFY DESIGN CALCULATIONS RELEVANT ACTIVE UNITS INCH LB NUMBER OF ACTIVE LOADINGS 1 REINFORCEMENT ORIENTATION PERPENDICULAR TO A CUT BEGINNING AT NODE 1 AND TERMINATING AT NODE 11 AND IN THE PLANE OF ELEMENT 1 x ELEMENT FORCE IMPLEMENTATION DESIGN MOMENT ENVELOPE NEGATIVE MOMENT 1354381 48 DUE TO LOAD L50pst POSITIVE MOMENT 0 00 DUE TO LOAD none NOTE Negative moment produces tension on the positive PLANAR Z surface requiring TOP bars Positive moment produces compression on the pos
50. d the maximum number of CREATE PSEUDO STATIC LOAD commands to 100 when the external file solver is active has been corrected GPRF 2010 06 12 GTSTRUDL static and dynamic analyses no longer abort when a slave joint makes reference to an inactive or deleted master joint GPRF 2011 16 Error Corrections GT STRUDL 3 6 GTMenu GPRF s are not issued for GTMenu unless specifically noted below l Member Elastic Connections are no longer lost if changes are made in GTMenu 2 In some instances loadings which had exactly 5 characters in their name would not draw the loads This has been corrected 3 Debug output will not longer be printed when performing a Redraw Solid for barbell concrete wall sections 4 If the first section of a variable section is prismatic Redraw Solid will now draw it as a straight line 5 Split members now works for more than 20 different split operations while the Split Member dialog is active You may have up to 1000 different split operations while the Split Member dialog is active 6 Generate Input File now checks member data more completely in order to eliminate an abort 7 An abort has been corrected when performing a Diagram Envelope 8 GTMenu no longer marks all joints when they are being selected to display supports 9 The aspect ratio calculation has been removed for 1 D elements such as the IPCABLE element 10 Split members with variable spacing and absolute specs now works correctly 1f t
51. des that have zero value eigenvalues have been computed by the preceding eigenvalue analysis The computed modal damping ratio is set equal to 0 0 for such modes GPRF 2011 09 2 The TIMES ALL option of the COMPUTE TRANSIENT and COMPUTE STEADY STATE commands no longer limits the number of time points for which transient and steady state responses are computed to 65536 All specified time points are now processed under the TIMES ALL option of these commands Note that the maximum permitted number of time points 1s 4 million see Section 2 2 Item 2 GPRF 2011 13 3 GTSTRUDL no longer aborts when using the LIST DYNAMIC PARTICIPATION FACTORS ORDER BY Command with the absence of mass participating in one of the principal directions GPRF 2011 04 3 3 External File Solver l When the External File Solver is active the deletion of existing entities 1 e joints members and finite elements and the addition of new entities between successive analysis steps will no longer create inconsistencies between the number and order of the entities reflected in the analysis results data stored in the external files before the deletions additions operations and the number and order of the entities actually present in the model following the deletions additions operations GPRF 2010 05 3 4 Finite Elements l Incorrect results will no longer result if a RIGIDITY MATRIX is specified for elements IPSL IPSQ and TRANS3D The Rigidity Matrix in
52. dropper Zoom to Area New Features GT STRUDL 5 Export Rich Text has been added to the File menu This selection creates a file with rtf extension that can be read in various Microsoft programs This RTF file contains all elements that are currently visible on the Scope Editor File Edit View Format Tools Filter Help New Ctrl N Open Ctri O Open old SSC Save Ctrl Save As Export Enhanced MetaFile Export MetaFile AutoCad Export Rich Text Print Ctrl P Print Preview Print Setup 1 G Users RawFrame soC 2 C Users margins SSC 3 CASECBorderBox S C Exit 6 The Move and Scale option has been added to the Tools menu available from the right mouse click pop up menu This option allows many items to be moved and scaled easily e Select elements to be moved and or scaled e Right click a selected element and choose the Move and Scale option from the Tools menu This will create a bounding rectangle encompassing all the selected elements with one control square at each corner This bounding box will be your guide to where and what size the completed operation will look like e To move place the cursor in one of the control squares Left click and drag the bounding rectangle to one corner of its new position Release the mouse when the rectangle is properly placed To leave the bounding rectangle in place scale only don t move the mouse before releasing e To scale place the cursor in one of the
53. e WRITE CABLE FORCES command has been added to the DBX feature This DBX file contains the normal stress the corresponding normal force and the three global element nodal reaction components at each of the two to six cable element nodes for all active static loading conditions computed from the latest nonlinear analysis All documented file formats and access modes are supported New Features GT STRUDL 2 2 Syntax WRITE CABLE FORCES MEMBERS list Example WRITE CABLE FORCES ALL MEMBERS WRITE CABLE FORCES MEMBERS EXISTING 1 TO 1000 Note that only the cable elements among the specified list of members are processed Documentation Summary of DBX Commands The WRITE Command Volume 5 GTSTRUDL Reference Manual Table 1 31 Volume 5 GTSTRUDL Reference Manual Dynamics The GT64MLANCZOS eigenvalue analysis solution method has been implemented extending high performance sparse equation eigenvalue analysis to 64 bit computer platforms GT64MLANCZOS is the most powerful version of the GTLANCZOS family of eigenvalue analysis solution methods GTLANCZOS GTSELANCZOS and now GT64MLANCZOS presently available in GTSTRUDL and incorporates the following features 1 The Lanczos iteration process employs an in core single processor version of the GT64M sparse equation solver Multiple processors and out of core processing are not available as of this initial implementation for Version 32 2 All computations associated
54. ect to the Z axis IZ GPRF 2010 09 EXISTING MEMBERS ONLY and EXISTING ELEMENTS ONLY now work correctly when used with the CONSTANTS command No GPREF issued Error Corrections GT STRUDL 4 When multiple master joints are specified for a given slave joint the documented action is taken i e all but the first master slave specification are ignored Sections 2 6 5 1 and 2 6 5 2 2 Volume 3 of the reference manual however no message so indicating is issued This situation has been improved Now a warning message 1s issued indicating that the second and later specifications of additional master joints for the same slave joint 1s invalid with scan mode turned on GPRF 2011 05 5 The PRINT MEMBER PROPERTIES command for PIPE tables which prints the ID OD and TH PIPE values are now printing these values GPRF 2011 08 An example of PRINT MEMBER PROPERTIES output is as follows 52 gt 53 gt MEMBER PROPERTIES BAYS al TO S T WSPIPE P12X33 55 gt 4 TO 6 T M S HP13 56X12 5 56 gt 57 gt PRINT MEMBER PROPERTIES 1 KKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKK PROBLEM DATA FROM INTERNAL STORAGE ee Se ee ee ce ee eee cee cece ee cece ae
55. elease Features GT STRUDL 2 In the following error example loading 51 is undefined 111 gt LOADING 201 LIZI gt ROTATE LOAD 51 TL 450 BASE ERROR TROLO gt JEgadring to be rotaved undefined Command ignored ae The following error message 1s produced because loading 4 specified as the ROTATE load is a load combination or dependent loading condition The ROTATE load must be an independent loading condition 141 gt LOADING 108 142 gt ROTATE LOADING 4 T3 45 0 BD Pte ERROR ey TROLO Rotated Loading 4 is an illegal dependent load Command ignored 4 This error condition and message 1s caused by the fact that the destination load 108 is defined as a loading combination 144 gt HOAD COMB LOS YALL COMBINE LD 1 5 02 12 0 3 L120 145 gt ROTATE LOADING 1 T3 45 0 Nes ERROR lt GTROLO gt Destination independent loading not defined Rotated load components not computed 54 4 GT STRUDL Reference Coordinate System Command 5 4 2 Reference Coordinate System Command General form i REFERENCE COORDINATE SYSTEM l all ORIGIN X v Y v Z v ROTATION R1 v R2 vy R3 v3 i gt ly 1 JOINT JOINT JOINT ay ay ay X v4 Y Vs Z v6 X v4 Y Vs Z v6 X v4 Y Vs Z v6 Explanation The REFERENCE COORDINATE SYSTEM is a right handed three dimensional Cartesian coordinate system The Reference Coordinate System s origin may be shifted from the origin X 0 0 Y 0 0 Z 0
56. embers Also members whose properties have been defined through these options can be code checked by the GTSTRUDL Codes that support such cross sections See Section 2 1 9 on Volume 1 of the GTSTRUDL User Reference Manual for more information 8 The CALCULATE SOIL SPRINGS command has been enhanced to 1 Allow a single KS value without an element list which indicates that GTSTRUDL should find all elements and element faces that lie on the specified plane and create an assumed element list This makes adding soil springs to an entire slab on one level much simpler 2 Added a NO SUPPORT CHECK option to the COMPRESSION ONLY nonlinear springs capability NLS elements will be added to the model without regard to the current support status of the involved joints as opposed to the current requirement that soil springs can be added only to joints with the appropriate DOF FX FY or FZ restrained This allows you greater flexibility in modeling but leaves the responsibility of creating a stable analysis model up to you An informational message is generated if the NO SUPPORT CHECK option is used but the appropriate DOF is fixed which will result in the created NLS being nonfunctional x k WARNING SSPRO3 The NO SUPPORT CHECK option will apply nonlinear springs to joints without regard to support status This message is to inform you the following joints have a restrained fixed DOF in the specified spring direction and the applied NLS will
57. ement and local force and moment diagrams and envelopes The modified Results pulldown and the new Graph Member Results dialog are shown below Beem Check Options Units Coordinate E Graph Member Results Deformed Structure Selection Joint Reactions Mode Options Select Member s Transient Response Force Moment Diagrams amp Envelopes eo i Member Results Graphs Member End Forces Diagram C Envelope Sum Forces ata Cut Plastic Hinge Percentage Steel Code Check Punching Shear Scaling Finite Elernent Results Deformation Magnification Factor Moving Load Diagram Envelope Scaling Factor Graphs Detormed Member M local Wr M local XZ Forces and Moments Iv Fx I Mx Iw Fr Iw KAN Iv FZ Iw hiz Set All Clear All Graph Selected Results Current Graph Total of Graphs GT STRUDL New Features An example of the selected result graphs produced in a separate window is shown below Diagram Window UNITS FEET EIFS Start jt Load 1 7 Member 6 Length 10 000 Member Property Group WLEHs 5 YD 6 343E 04 7 50 YD 6 343E 04 2 50 Cancel Graphs for multiple members are available by clicking on the Next button shown above In addition the graphs may be printed or edited in the Scope Editor 2 19 New Features GT STRUDL 6 Finite element edges and faces may now be labeled using the revised Display Model dial
58. ems Chapter 2 presents the new features and enhancements which have been added since the release of Version 31 Chapter 3 provides you with details regarding error corrections that have been made since the Version 31 release Chapter 4 describes known problems with Version 32 Chapter 5 describes prerelease features new features which have been developed and subjected to limited testing or features for which the user documentation has not been added to the GISTRUDL User Reference Manual The command formats and functionality of the prerelease features may change before they become supported features based on additional testing and feedback from users The Prerelease features are subdivided into Design Analysis and General categories The features in these categories and their sections numbers in Chapter 5 are shown below 5 2 Design Prerelease Features 5 2 1 LRFD3 Steel Design Code Rather than use the LRFD3 code which is a prerelease feature users should use the AISC13 code which is now a released feature 5 2 2 ACI Concrete Code 318 99 Rather than use the 318 99 code which is a prerelease feature users should use the 318 05 code which is now a released feature 5 2 3 Rectangular and Circular Concrete Cross Section Tables 5 2 4 Design of Flat Plates Based on the Results of Finite Element Analysis The DESIGN SLAB Command 5 2 5 ISO 19902 2007 E code for fixed steel offshore structures 5 2 6 ASCE4805 Steel Design Code This code
59. ents supported include the SBCT SBCR SBHQ SBHQCSH SBHT SBHT6 and SBHQ6 finite elements Usage Studies have shown that the CALCULATE RESULTANT ELEMENT FORCE option of the DESIGN SLAB command is only applicable in regions where the cut orientation is generally orthogonal to the directions of principle bending If the geometry of a region dictates that a cut be oriented non orthogonally to the principal bending directions a significant torsional effect may occur In this case the Wood and Armer method must be employed due to its ability to correctly compute the ultimate moment in a strong torsion field In the DESIGN SLAB command the user is warned 1f the element force implementation computes a resultant torsion greater than 10 of the resultant bending moment on a particular cross section The user may modify the torsion warning threshold via the modifiers TORSIONAL MOMENT WARNING If there is any question of the orientation of the cut with respect to the directions of principal bending the user should investigate the behavior in the finite element results section of GTMENU 5 2 11 Design Prerelease Features ISO 19902 Code Usage Example Description of Example Structure The example structure is a rectangular slab system shown in Figure 5 2 4 1 The clear span of the structure is thirty feet and the slab strip has a width of ten feet The two ends of the slab are fully fixed while the thirty foot sides are free resembling a fixed f
60. ew Mode Contours option available under Mode Options is shown below KaMe Check Options Units Coordinate System Utilities Help formed ure Display l i Model Mode Options Mode Shape Transient Response Mode Contours Arrow Keys Moving Load GT STRUDL New Features The Element Mode Contours dialog and an example of the a mode shape contour plot are shown below Element Mode Contours Type Modal Displacements Rotations Units cycles C radians FERIENE ETE i Frequency 47 884 cyc sec Contour Interval on Screen Label C List Box New Features GT STRUDL 1 00 O 99 0 90 pl 0 72 0 63 0 54 0 45 0 36 0 27 0 18 o 09 0 00 DIS a Mode 1 INCH 12 A new option has been added to the Results pulldown which will allow the user to graphically select the joints and elements to obtain the resultant forces along a cut which is parallel to a global plane The modified Results pulldown is shown below fee Check Options Units Coordinate Deformed Structure Joint Reactions Mode Options Transient Response Force Moment Diagrams amp Envelopes Member Results Graphs Sum Forces ata Cut Plastic Hinge Percentage Steel Code Check Punching Shear Finite Elernent Results Moving Load GT STRUDL New Features The new Sum Forces dialog is shown below along with the resulting output from selecting joints and elements
61. fied by the values r r r These rotation angles are defined according to the same conventions as those that define the local support release directions in the JOINT RELEASE command described in Section 2 1 7 2 Volume 1 of the GISTRUDL User Reference Manual and illustrated in Figure 2 1 7 1 The ROTATE LOADING command is always used in conjunction with one of the following loading definition commands LOADING DEAD LOAD and FORM LOAD These commands will define the name and title of a new or existing destination loading condition into which the ROTATE LOADING results are copied The ROTATE LOADING command may be given with any additional applied loading commands such as JOINT LOADS MEMBER LOADS ELEMENT LOADS etc Taking the specified loading 1 a the ROTATE LOADING command performs the following operations and copies the results into the destination loading condition l Rotate all joint loads including applied joint support displacements 2 Rotate all member force and moment loads defined with respect to the global coordinate system Member force and moment loads defined with respect to the member local coordinate system are simply copied without rotation 3 Rotate all element force loads defined with respect to the global coordinate system Element force loads defined with respect to any applicable local or planar coordinate systems are copied without rotation 4 All other types of loads such as member temperature l
62. gebraic Ascending Joint toad surf _ vontises st a tmax theta x T E 15520 35 17629 5 6027 0 a0 1 4 155203 027 0 176029 5 a0 1 4 Lat02 4 5233 1 DIZ 4330 4 134 z 4 5252 2 152433 1 4930 4 GT STRUDL New Features Te When allowable forces are specified for anchors you can now elect to use an interaction ratio limit of 1 2 Limits for tension and shear remain fixed at 1 0 Interaction Exponent Shear i 0000 ARIA i 0000 W Use 1 2 allowable 8 New options have been added to Results Summary Section 11 1 to add more information to the Anchor results output Options W Include plate geometry summary Include mas Anchor result loads Include load data Add individual Anchor results lf View in Notepad i Include max Anchor result loads This option will add the names of the loads that caused the maximum interaction tension and shear ratios Load names are printed underneath the standard anchor results output Anchor P F Intact Tension T allow Ratio Shear V allow Ratio Bl F 1 0625 21250 2000 0 1 063 706 9 1500 0 0 471 T 1 T 1 5 W Add individual Anchor results This option will output the individual anchor results ordered by loading following the standard anchor results output Individual anchor results by load Anchor Load I fratio P F Axial A Allow A Ratio Shear V Allow V Ratio B1 A 0 0903 P 106 1 2000 0 0 0530 55 9 1500 0 0 0373 B2 0 0938 P 23 6 2000 0 0 0118 123 0 1500 0 0 0820 B1 2 0 20
63. gram must be registered in Windows such that the assoc DOS command can report the program name given its standard file extension For example 1f you issue the DOS command assoc gti you get the response gti GTStrudl Input The element file is sent to program as an argument The HIDE option is not available for LAUNCH PROGRAM and FILE are optional words and have no effect on the command operation If file is specified as NULL then program will be launched with no arguments WAIT Indicates that GTSTRUDL command processing should stop until program has completed If this option is not used GTSTRUDL will continue and process the next command if you are running a macro or an input file Use the WAIT option if the results of program are required for subsequent GTSTRUDL commands Example RUN LAUNCH WAIT PROGRAM Excel FILE MyData xls This will open Microsoft Excel as if you had double clicked the file MyData xls 2 11 New Features GT STRUDL 10 11 12 13 Documentation Section 2 1 12 17 The RUN Command Volume 1 GTSTRUDL Reference Manual The CALCULATE SOIL SPRINGS and CALCULATE PRESSURE commands have been enhanced to allow the use of the PBMITC SBMITC and IPSLIM elements Documentation Section 2 1 12 13 The CALCULATE SOIL SPRING VALUES Command Volume 1 GTSTRUDL Reference Manual Section 2 1 12 19 The CALCULATE PRESSURE Command Volume 1 GTSTRUDL Reference Manual T
64. gts2 file if it exists If the gts2 file is missing RESTORE will fail with an error similar to this 14 GT STRUDL New Features CE GT STRUDL OSE F noread ROBLOK unsuccessful read dsn 11 block 4608 Mo such file or directory A successful RESTORE will issue a message similar to this 80 gt RESTORE C 32 LargeProblem 2Files test gts WEES INFO AXREOL RESTORE Complete from 2 tiles C 32 LargeProblem 2Files test gts C 32 LargeProblem 2Files test gts2 The SAVE RESTORE process for data bases less than 2GB is unchanged The NJP parameter has been added to the GTSES GT64M ASSEMBLE command The new command syntax is shown below orem gt 6 ASSEMBLE FOR STATICS NJP GT64M oo h QOC NJP The optional NJP parameter Vyp 1s used to control the number of joints that are assembled into a typical global stiffness sub matrix partition where NJP 6 is the default NJP 6 is adequate for the majority of cases however in the rare case when the assembly process terminates due to a failure to allocate sufficient virtual memory re executing the GTSES GT64M ASSEMBLE FOR STATICS command with a larger value of NJP e g NJP 12 may permit the assembly to complete successfully Documentation Section 2 1 13 3 2 Volume 1 Split Solver Static Analysis Using the GTSES GT64M Sparse Equation Solvers New Features GT STRUDL 2 5 GTMenu Dynamic mass specified using the INERTIA OF JOINTS c
65. he members are long and the length unit is mm 11 An abort no longer occurs if an element has a thickness but the type of element has not been specified 3 7 Model Wizard GPRF s are not issued for the Model Wizard unless specifically noted below l The Braced Plane Frame no longer generates incorrect models if only AB or CD knee bracing is selected for all bays GT STRUDL Error Corrections 3 8 Nonlinear Analysis l Members having stiffness flexibility matrix properties no longer have the potential to cause GTSES nonlinear analysis convergence problems when such members also are designated as having nonlinear effects of any kind Nonlinear effects for such members are now ignored and the following message is issued when this condition is detected swe WARNING NLCNCK Nonlin ar effects Nave been specrtied for members having stiffness flexibility matrix properties Nonlinear effects for such members are ignored GPRF 2011 03 2 Plane and space frame members that have been designated as NLS CONNECTION members by the NONLINEAR EFFECTS command may cause problems that prevent the successful completion of a nonlinear static analysis under the following conditions 1 There are two or more members that are designated as NLS CONNECTION 2 Different members specify different NLS CONNECTION degrees of freedom with different nonlinear spring curves at different member ends start or end as illustrated by the following comm
66. he LARGE PROBLEM SIZE command has been improved to take advantage of the increased resources available to computers with a 64 bit operating system This improvement can help decrease the run time for very large jobs More comprehensive checking is now performed when processing the MEMBER LOAD command to detect when the user has not specified the load component or type of load The SAVE RESTORE process has been enhanced to allow data bases larger than 2 GB Because GTSTRUDL relies on standard 32 bit file utilities individual files are limited to 2 GB When internal data bases exceed 2 GB a second file is created during the SAVE process This file uses the same user specified file name as the standard SAVE file but with the extension gts2 This extension is fixed and is not based on the extension of the standard SAVE file which has a default extension of gts but may be different if the user specifies an extension A successful SAVE of a data base greater than 2 GB will issue a message similar to this 79 gt save test eee TNE OUSNOAVE Data base 7 260 and saved am Likes C 32 LargeProblem 2Files test gts C 32 LargeProblem 2Files test gts2 Only the standard SAVE file is referenced in the RESTORE command but both files the standard SAVE file and the second gts2 file are required for a successful RESTORE of a data base larger than 2 GB If the SAVE file 1s copied or moved to a different folder be sure to include the
67. iF _ bar size to be used for both the top and bottom surfaces of the slab V reinforcing bar spacing to be used on the top surface of the slab V reinforcing bar spacing to be used on the bottom surface of the slab V3 reinforcing bar spacing to be used on both surfaces of the slab V optional user specified cover distance for reinforcing bars V linear tolerance used in element selection rules for moment computation V6 optional ratio of torsion to bending moment allowed on the cross section TOP element surface with Z PLANAR coordinate BOTTOM element surface with Z PLANAR coordinate 5 2 8 GT STRUDL DESIGN SLAB Command Explanation The DESIGN SLAB command allows the user to communicate all data necessary for the reinforcing steel design This information is processed and a design is calculated based on the input The command is designed to provide varying levels of control for the user so as to make the command as broadly applicable as possible The user must first define the cut A cut is defined by a start and end node ID and an element ID in the plane of the cut The user has the option of giving each cut an alphanumeric name for organizational purposes The purpose of the required element ID is to determine the appropriate plane to design in the event that multiple planes of finite elements intersect along the cut as defined by the start and end node An example where this might occur 1s the intersection of
68. ice mark of the Georgia Tech Research Corporation Atlanta Georgia USA Windows 7 Windows Vista Windows XP and Windows 2000 are registered trademarks of Microsoft Corporation in the United States and or other countries Intel Core 2 Duo and Intel Core 2 Quad are registered trademarks of Intel Corporation in the United States and other countries sie Table of Contents Chapter Page NOTICES 2049404 Etan ac keh U GAGE PEE EOEL EE REO ORE EE RO RE ERE OE A ll DISCLAIMER 2 42 2045 G3SC62250 5S Ct ap hat oenee Goeteae hates ae heated ll Commercial Software Rights Legend 0 0 0 ene ll Pale Or COMEM 6g fuk aed E cathe BY ee ee Oe es 1 CHAPTER 1 TART UIC CLOUD censors eh ete ope ch eee i eae ach costes CPR ces co ad gt a Wi SPR saat 1 1 CHAPTER 2 NEW FEATURES IN VERSION 32 Del DB lt a acest ace e esata es cca ara gage ewe a one Roa ee cau a aoe 2 1 Do DYNAMO sete ee hon oe enue a Bhs he ie EAA EEE wala eb 2 2 Dh PDE reroror eree y ees ee ident e Wee Aes citi 2 ied 2 4 2A OOTTE iE ar tice sie asp aT ee Aa 2 5 2 GIMO respe ks San ETEEN Dee aOR Thee OER aN 2 14 26 GISTRUDL Output Window lt 2 cveunioe aves ee e6 bee haw ave ees 2 35 27 Mode lWizard og ac dak aie a ank darth dw ated awane pee eee peda 2 36 2 Nonea auseu cb aycda2 eed Lessee GEN dhe RES Cee ee eee Pees 2 36 Do O OE 3 apres Avs be eas an ae es a a ee es Bleek ee R 2 37 ZNO Steel DCS ON rieren eaaa eae e haw e a a eae e haw e ISN 2 40 2
69. ing these moments to a design envelope Once the design envelope is computed the cross section is designed according to ACI 318 05 either using default design parameter or with certain user specified design parameters such as the bar size or spacing An important distinction is to note that each cut 1s designed independently from all other cuts That is a cut specified in one region is independent with respect to a design in another region As such if the user wishes to use the same bar size over multiple adjacent cuts this information must be specified for each cut 52 Design Prerelease Features ISO 19902 Code The form of the command 1s as follows DESIGN SLAB REINFORCEMENT USING AVERAGE area CALCULATE RESULTANT ELEMENT FORCES gt ASTM ae WOOD AND ARMER ALONG q JOINTS _ CUT h D en list ELEMENT list TABLE TOP FACE BARS i SPACING v BOTTOM FACE BARS i SPACING v BOTH FACES BARS i SPACING v gt INNER LAYER OUTER LAYER TORSIONAL MOMENT WARNING v COVER v LINEAR TOLERANCE v where a or 1 refer to an optional alphanumeric or integer cut name list list containing ID s of the start and end node of the cut list list containing the ID of an element in the plane of the cut i bar size to be used for bars on the top surface of the slab 1 bar size to be used for bars on the bottom surface of the slab
70. iral Allowable tension stress in primary reinf Allowable compressive stress in column reinf Allowable tension stress in stirrups Flexure capacity reduction factor Shear capacity reduction factor Bond capacity reduction factor Torsion capacity reduction factor Spiral column capacity reduction factor Tied column capacity reduction factor Ratio of max p p p or Pw Pp tO Pyar Maximum allowable reinforced ratio in columns Minimum allowable reinforced ratio in columns Minimum allowable reinforced ratio in flexural members Modulus of elasticity for reinf steel Modulus of elasticity for concrete Ult strain in concrete at extreme comp fiber 5 2 3 ACI Assumed Value 318 99 4000 psi 60000 psi 145 pef 150 pef A 3 1 0 45 FCP 11 5 6 9 8 FCP v A 3 1 b 5 5 FCP 9 5 2 3 6 7 60000 psi 60000 psi 20000 psi for A 3 2 Grades 40 50 24000 psi for Grade 60 9 3 2 0 9 9 3 2 0 85 9 3 2 0 85 932 0 85 9 3 2 0 75 9 3 2 0 7 10 3 3 0 75 10 9 1 0 08 10 9 1 0 01 10 5 1 200 FY 8 5 2 29x 10 psi 8 5 1 33 WC FCP 10 2 3 0 003 ACI Code 318 99 GT STRUDL Notes The constant DENSITY is the GTSTRUDL constant of the same name which has been set to a value of 150 pcf for reinforced concrete VU is multiplied by PHISH internally Calculations for V and T are modified by replacing f with RFSP 6 70 f as per Section 11 2 1 1 The assumed value
71. itive PLANAR Z surface requiring BOTTOM bars RX SLAB CROSS SECTION Width Depth FCP FY Cover Layer 120 00 12 00 4000 00 60000 00 0 750 Inner xx DESIGN RESULTS per ACI 318 05 Face Bar Spacing AS PROV D MOMENT STRENGTH MOMENT REQ D STATUS TOP 5 13 000 2 862 1561006 4280 1354381 4844 PASSES BOTTOM Reinforcement Not Required 5 2 14 GT STRUDL DESIGN SLAB Command Cut 2 2 The cross section Cut 2 2 is defined along the center line in the middle region of the slab strip and represents the maximum positive moment section in the slab where bottom reinforcing steel would be required Cut 2 2 originates at node 166 and terminates at node 176 The elements along Cut 2 2 are elements 141 150 on one side and 151 160 on the other side The command given for Cut 2 2 Case 1 is DESIGN SLAB WOOD AND ARMER JOI 166 176 ELE 141 TABLE UNESCO BOTTOM SPACING 10 OUTER LAYER In this case the user requests that a slab cross section beginning at node 166 ending at node 176 and in the plane of element 141 be reinforced according to the average effect produced by the Wood and Armer method The user has specified that UNESCO metric reinforcing bars are to be used The bottom reinforcement spacing has been constrained to 10 inches and the reinforcement to be designed is located in the outer layer The results of the DESIGN SLAB command are shown in the following table Calculation Surface Bar Spacing Moment Strength
72. ixed beam The slab is one foot thick and constructed of normal strength concrete with FCP 4000 psi The example structure can be idealized as a subset of a larger slab system perhaps the design strip running between two column faces in an interior region The structure is loaded with a distributed surface pressure of 150 psf over the entire surface of the slab Figure 5 2 4 1 Example Flat Plate Structure PLAN 5 2 12 GT STRUDL DESIGN SLAB Command GT STRUDL Finite Element Model The example structure was modeled in GT STRUDL using PLATE BENDING finite elements The BPHQ element was utilized and the configuration modeled corresponded to a mesh of ten elements by thirty elements The model contained 300 finite elements and 341 nodes The material properties were the default values associated with the MATERIAL REINFORCED CONCRETE command All 6 degrees of freedom were restrained at each node along the supported ends of the slab system Each element was loaded with a surface pressure of 150 psf resulting in a confirmed summation of vertical reaction of 45 000 Ib Figure 5 2 4 2 Example Finite Element Model Definition of Cut Cross Sections Two cuts are considered for the verification example as shown in Figure 5 2 4 1 Cut 1 1 The cross section Cut 1 1 1s defined along the fixed support at the end of the slab strip and represents the maximum negative moment section in the slab where top reinforcing steel woul
73. le Polygon Text Paragraph Date Eyedropper Import Bitmap Zoom to Area GT STRUDL 4 New Features The Fill shape and Outline Only options have been added to the Tools menu available from the right mouse click pop up menu Fill shape causes the selected highlighted objects to become filled with the current global brush color set with Format Colotr Outline only causes the selected highlighted objects to become outlined shapes without interior color Cut Copy Paste Delete Edit Text Rotate Text Set Paste Position Change Line Endpoint Color Font Pen Zoom 1 1 oom Zoom In oom Out Line Width Flip Vertical Scale Tools Ctrl x Ctrl C Ctrl V Del Home Ctrl Z PageUp PageDn 7 Cut Copy Faste Delete Edit Text Rotate Text Set Paste Position Change Line Endpoint Color Font Pen foom 1 1 foom Zoom In Zoom Out Line Width Flip Vertical Scale Tools Pick Single Selection Select Area Select Text in Area Move and Scale Fill Shape Outline Only Freehand Stroke Line Vertical line Horizontal line Arrow Box Ellipse Text Eyedropper Zoom to Area 2 51 Ctrl X Ctrl C Ctrl V Home Ctrl 2 PageUp PageDn Pick Single Selection Select Area Select Text in Area Move and Scale Fill Shape Outline Only Freehand Stroke Line Vertical line Herizontal line Arrow Box Ellipse Text Eye
74. lied in the command is altered The other data that might be supplied in the command remains unchanged The CHANGES mode however does not work for the second option discussed above 1 e define a reference coordinate system by three joints or the coordinate of three points in space The reason is that data for these joints are not stored permanently in GTSTRUDL When this option is used a reference system is created and its definitions of the system origin rotation angles as well as the transformation matrix between the global coordinate system and the reference system are generated and stored as would be for the first option Therefore if any of the coordinates for the joints used to specify a reference system is changed after the REFERENCE COORDINATE SYSTEM command has been given the definition of the reference system remains unchanged For this reason care must be taken in using the three joints option in conjunction with the changes of joint coordinates The reference system should be deleted first if any of the coordinates of the joints used to define the reference system are to be changed Under the DELETIONS mode the complete definition of the reference coordinate system is destroyed 5 4 6 GT STRUDL Reference Coordinate System Command Examples a UNITS DEGREES REFERENCE COORDINATE SYSTEM FLOOR ORIGIN 0 0 15 0 0 0 R1 30 This command creates a Reference Coordinate System called FLOOR2 at Y 15 with the axes rotated 3
75. m reporting geometric checks instead of stress checks on the Code Check or Design Summary 8 The parameter ALSTRINC which can be used to modify the allowable stresses can now accept negative values in order to allow the designer to reduce the allowable stresses for a list of loads This parameter is available for the ASD9 ASD9 E UNISTRUT APIWSD20 and APIWSD21 Codes and will be available for the N690 94 code in Version 32 9 The steel design code ASCE4805 which is based on the 2005 edition of the ASCE SEI Design of Steel Transmission Pole Structures Specification has been implemented as a pre release feature The ASCE SEI 48 05 Specification is based on ultimate strength methods using factored loads The ASCE4805 Code may be used to select or check any of the following shapes Design for axial force bi axial bending and torsion Pipes Regular Polygonal Tube Structural Tubing The documentation for the ASCE4805 code may be found by selecting the Help menu and then Reference Documentation Reference Manuals Steel Design and ASCE4805 in the GTSTRUDL Output Window New Features GT STRUDL 2 11 2 12 Steel Tables and GTTABLE The output of the Table print commands will no longer overflow the output field and be printed as AA HH A aaa When the value is larger than the reserved field The values that are too large for the reserved fields are automatically converted to an exponential format before being printed This will
76. n Max and Avg values refer to the minimum maximum and average output values at the node The Vector Max values refer to the maximum value for all nodes in the output vector All error estimates are either zero or positive since all use the absolute value of the various factors 5 3 3 Analysis Prerelease Features GT STRUDL The choice of an appropriate error estimation method largely depends on the conditions in the model As many error estimates as required may be calculated In general the Max Difference method is good at pointing out the largest gradients in the portions of your model with the largest output values The Difference from Average Method will also identify areas with the largest output values In this case however areas where only one or a few values are significantly different will be accentuated The Max Difference method will identify the steepest gradients in the most critical portions of your model The Difference from Average Method will identify just the steepest non uniform gradients the ones that vary in only a single direction The two percentage methods identify the same type of gradients but do not make any distinction between large and small output values These methods are to be used only if the magnitude of the output is less important than the changes in output The two percentage methods estimate the error as a percent of the average stress However at nodes where there is achange in sign of
77. nd may produce slightly different fatigue damage and fatigue life results depending on the order in which multiple wave load files were previously processed by the READ WAVE LOADS NEW command This discrepancy has been corrected No GPREF issued oe The DIRECTION option of the LIST FATIGUE STRESSES and LIST FATIGUE TRANSFER FUNCTIONS commands now reports the requested fatigue analysis results only for the specified wave DIRECTIONs In previous versions the DIRECTION option was ignored and the requested fatigue analysis results were always reported for all available wave directions No GPREF issued 3 10 Static Analysis l The command STIFFNESS ANALYSIS GTSES WITHOUT REDUCE BAND will now always turn off bandwidth reduction No GPRF issued 2 When the DUMP OFF command is given and a self weight load is present the GTSES and GT64M solvers now complete the solution Previously the solvers would exit the assembly process without performing the solution No GPRF issued GT STRUDL Error Corrections gt Static analysis using the GTSES GT64M sparse equation solvers could prematurely complete with no results computed when one of the active independent loads was computed by the SELF WEIGHT or DEAD LOAD command for at least one active member finite element having a DENSITY value equal to exactly 0 0 This condition has been corrected GPRF 2011 02 3 11 Steel Design l The uninitialized variable in the AISC13 code which re
78. oads member distortions joint temperatures etc are copied without changes 5 4 2 GT STRUDL ROTATE LOAD Command Examples l UNITS DEGREES LOADING 2 ROTATED LOADING MEMBER DISTORTIONS L TO LO C UNTFPORM FR DA 00O EB d0 DLSPR 2X OO Ou ROTATE LOADING 1 ANGLES T1 45 0 The applied loads from previously defined loading 1 will be processed according to Steps 1 to 4 above and copied into the new destination loading 2 which includes the specified member distortion loads applied to members 1 to 10 Zz UNITS DEGREES CHANGES LOADING 3 ADDITIONS ROTATE LOAD 4 ANGLES T2 30 0 Previously defined loading 3 1s specified in CHANGES mode followed by a return to ADDITIONS mode The ROTATE LOAD command is then given to add the components of load 4 including appropriate rotations to loading 3 Error Messages Incorrect data given in the ROTATE LOADING command will cause the following error conditions to be identified and error messages printed l The following error message is printed ifthe ROTATE loading name is identical to the name ofthe destination load An example of the commands that produce this error are also included 114 gt LOADING 201 115 gt ROTATE LOAD 201 TL 45 0 BIS ERROR 25 ROO The ROTATE loading is illegally the same as the destination loading Command ignored Loading 201 is illegally named as both the destination load and the loading whose components are rotated 5 4 3 General Prer
79. of FSC is also limited to 30 000 psi maximum This value is defined only at the time of stirrup design 5 2 4 GT STRUDL Rectangular and Circular Concrete Cross Section Tables 5 2 3 Rectangular and Circular Concrete Cross Section Tables New tables have been added for rectangular and circular concrete cross sections The new table for rectangular sections 1s called CONRECT and the new table for circular sections is called CONCIR These tables are added to facilitate the modeling and analysis of concrete cross sections but may not be used in the design of concrete cross sections In order to design concrete sections the MEMBER DIMENSION command must be used see Section 2 5 of Volume 4 of the GISTRUDL User Reference Manual The profiles in the CONCIR table are shown below where the name CIRxx indicates a circular cross section and xx is the diameter in inches Thus CIR12 is a 12 inch diameter circular cross section CIR12 CIR24 CIR14 CIR26 CIR16 CIR28 CIR18 CIR30 CIR20 CIR32 CIR22 CIR34 CIR36 The profiles in the CONRECT table are shown below where the name RECY YXZZ indicates a rectangular cross section with a width of YY inches and a depth of ZZ inches Thus REC16X24 is 16 inch wide and 24 inch deep rectangular cross section REC6X12 REC8X12 REC10X12 REC12X12 REC14X12 REC16X12 REC6X14 REC8X14 REC10X14 REC12X14 REC14X14 REC16X14 REC6X16 REC8X16 REC10X16 REC12X16 REC14X16 REC16X16 REC6X18 REC8X18 REC10X18 REC12X18 REC14X18 RE
80. og which is shown below Display Model Member amp Element Shrink Factor Mesh Boundary Outline M Add Interior Detail Generate Display List Mark Loads Joint C Member Element f All Mark Properties C Section C Material M Label All Types Mark Joint on Screen C Support Status with Legend C in List Box V Label All Types Draw Member C Section Names C Color by Section C Releases C Lengths labeled Local Axes CKY OKZ C Beta Profiles C UY wi Le Draw Element C Incidence Order C Faces labeled C Planar Axes C Edges labeled Color by Thickness GT STRUDL New Features fe An automatic mesh feature for 2D elements has been implemented as a pre release feature on an experimental basis to mesh structures using only the structure s outline defined by Construction Lines including internal boundaries and line constraints Users should save their models before using this feature due to its experimental nature This feature is called GTMesh and is available using the hotkey lt Ctrl gt 8 press Ctrl and 8 simultaneously The GTMesh dialog is shown below which allows the user to specify the external and internal boundaries and constraints as well as setting the mesh spacing ox Current Properties Material COHCRETE Type SBHO6 Thickness 7 00 Assignment C Material Group C Element Type Number of Regions 1 Actions Objects Define C External Boundary Add C Internal
81. ol Six nodal error estimation methods are available Maximum Difference Difference from Average Percent Maximum Difference Percent Difference from Average Normalized Percent Maximum Difference Normalized percent Difference from Average These error estimates look at the variations in stresses at the nodes An error estimate of nodal output data will be based on the gradients that data produces in each element That is how the data varies across that node based on the different data values from the elements connected at that node The calculation of error estimates for nodal output is fairly straightforward the values at each node connected at an element are simply compared The six nodal error measures are outlined in more detail below SoZ GT STRUDL The CALCULATE ERROR ESTIMATE Command Maximum Difference Method Value Values Difference from Average Method MAX Value Value Avg gt Valuey Value Max Percent Maximum Difference Method ValuemMmax Valueyin lt 100 Value Avg Percent Difference from Average Method Normalized Percent Maximum Difference Valueyin Value Avg 9 MAX Valuenax Value aye x 100 Value Avg Valuemax ValueMin E Value vyectorMax Normalized Percent Difference from Average Method MAX Valueyjax Valueayy ValuemMin Valueays x 100 Value vectorMax In each of these calculations the Mi
82. ommand can now be displayed The revised Results pulldown and the Display Joint Mass dialog are shown below Display Joint Mass MEE Arow Scale Baer Fesults Check Options U VIGW Model o ES 0 1 5 0 Design Parameters T Load Moving Load Joint Mass Vectors amp Values Rigid Bodies and SuperElements Results Vectors Only Default Settings Directions Query Translation Rotation ws a m Set All MY Ea om Clear An example of the display of joint masses using the above dialog is shown below 1 500 1 500 1 500 1 500 ao0 1 500 1 sod 10u GT STRUDL New Features 2 The colors used for contour plots can now be changed The revised Options pulldown is shown below im Units Coordinate System Utilities Default Settings Item Colors ID naming Attribute Colors Redraw Solid Contour Colors Model Display Font Set Arrow Keys Display Options Graphics Capture tn mase eaf onrm ni The new Contour Colors dialog is shown below Gl Contour Colors First Selecta Color Usaqe Change tem Colors Change Atribute Colors most negative value Contour Colors most positive value Graphics BackGround BG a a E PE O a O n New Features GT STRUDL 3 Different colors can now be used for members and finite elements for the deformed structure mode shapes and transient animation as shown on the revised Attri
83. oring to Concrete CHECK ANCHOR CONFIGURATIONS gt ACI 05 gt ALL SESMIC i l ist GT STRUDL New Features 2 14 Scope Editor l A Circle has been added to the Tools menu Circles are created by holding down the left mouse button and then dragging the circle to determine the orientation and diameter of the diameter of the circle Pick Single Selection First Click Select Area Select Text in Area Freehand Stroke Line Vertical line Horizontal line Arrow Box i Second click Triangle Ellipse Circle Polygon Paragraph Date Eyedropper Import Bitmap Zoom to Area New Features GT STRUDL 2 Triangle has been added to the Tools menu Triangles are created by left clicking three points to indicate the vertices of the triangle Tools Filter Help Pick Single Selection Select Area Select Text in Area Freehand Stroke Line Vertical line Horizontal line Arrow Box Triangle Ellipse Circle Polygon Text Paragraph Date Eyedropper Import Bitmap Zoom to Area Click 1 w Click 3 f Click 2 3 Polygon has been added to the Tools menu Left click to initiate construction A new vertex is added for each new left click until the first vertex is clicked closing the polygon Filter Help Fick Single Selection Select Area Select Text in Area Freehand Stroke Line Vertical line Horizontal line Arrow Box Triangle Ellipse Circ
84. orrect in the GTSTRUDL Output Window using the PRINT LOAD DATA command or by checking the reactions using LIST SUM REACTIONS No GPREF issued 4 4 Scope Environment i OVERLAY DIAGRAM in the Plotter Environment produces diagrams that are much smaller relative to the plot size than the Scope environment does This 1s because the structure plot is magnified to fill the Plotter graphics area but the height of the diagram is not increased As a work around use the PLOT FORMAT SCALE command to decrease the scale factor which will increase the size of the diagram The current value is printed with a Scope Environment OVERLAY DIAGRAM The value printed with a Plotter Environment OVERLAY DIAGRAM 1s incorrect For example if a Moment Z diagram is OVERLAYed with a scale factor of 100 0 on the Scope the command PLOT FORMAT SCALE MOMENT Z 50 would scale a reasonable OVERLAY DIAGRAM for the Plotter GPRF 96 19 4 5 Offshore Analysis and Design GTSELOS l The GTSELOS linear wave implementation produces incorrect wave kinematics and wave forces at water depths greater than approximately 525 feet 160 meters No GPRF issued GT STRUDL Prerelease Features Chapter 5 Prerelease Features 5 1 Introduction This chapter describes new features that have been added to GTSTRUDL but are classified as prerelease features due to one or more of the following reasons l The feature has undergone only limited testing This limited testing produ
85. pear M Change my default attachment file to this one Cancel will change the Attachments File Registry entry but will not change your current profile list Cancel See Appendix A2 in the Base Plate Wizard User Manual for an explanation of the various options New Features GT STRUDL 5 A new option has been added to Attachments to allow specification of attachment lines as Contact Only corresponding to lines of the attachment that are in contact with the plate but are not welded therefore allowing the attachment line and the plate to separate under tension This option is available with the Edit Weld Status button when editing an attachment Standard profiles may have the weld status edited but they will become arbitrary user defined profiles upon saving See Section 3 2 1 Changing Weld Status for Attachments in the Base Plate Wizard User Manual for an explanation of how to edit the weld status and how Contact Only is modeled Modeling Method As Rigid Footprint As 2D elements Length E o In Apply loadings at f end of attachment base plate surface Edit weld Status Cancel New Edit Weld Status button 6 The Plate Stress results dialog has a new option to include the location X and Y coordinates of each joint Check the Location box to add new columns to the right of the display LS Average Plate Stresses Stress units psi write to file I Location Al
86. plication will simply check the strength of the cross section against the computed design envelope according to ACI 318 Ifthe user specifies no design constraints the application assumes a bar size and designs the section to satisfy ACI 318 As such the user maintains explicit control over the function of the application The user may also specify which layer of bars to be designed using the modifier INNER or OUTER These refer to the location of reinforcing bars on each surface At 5239 Design Prerelease Features ISO 19902 Code most slab locations reinforcement is placed 1n two perpendicular directions on both surfaces of the slab Since each layer of reinforcement cannot occupy the same space one layer must be placed on top of the other OUTER refers to the layer closest to the surface while INNER refers to the layer nearest the center of the slab All user specified constraints such as concrete compressive strength yield strength cover and spacing are checked against ACI minimum maximum values as specified in ACI 318 02 The thickness of the cross section is determined internally based on the modeled thickness of the user specified element With respect to the interpretation of results top always refers to the face of the slab on the Z PLANAR side of the element and bottom always refers to the face of the slab on the Z PLANAR side of the element Positive bending refers to bending that produces tension on the
87. prevent any print overflow problem Base Plate Wizard The command SET ELEMENTS HASHED is now added to the GTSTRUDL input file for models greater than 200 joints to increase processing speed The Base Plate Wizard Release Guide can be viewed from the Help menu Help Base Plate Wizard documentation Release Guide About Base Plate Wizard The Nonlinear Analysis option for Generate Input now includes the ability to request NONLINEAR ANALYSIS GTSES which uses the external file solver This can run much faster for very large models but note that the external results files will now be included in your working directory iY Nonlinear Analysis Maximum number of iterations 20 GTSES f Displacement Convergence by Tolerance 0 0001 Equilibrium GT STRUDL New Features 4 The Open New Attachment File dialog available from the Options menu has been changed to give more control over handling attachment data not in the default Attachment File The changed dialog looks like this Open New Attachment File x Attachment profiles already exist Do you want to add profiles from this file to the existing profiles or replace the current profile list with this ore Add the new profiles to my curent profile list Replace the existing profile list with this new one Change my default attachment file to this one If you check the Change my default attachment file to this one box these new features ap
88. put is not supported for 322 GT STRUDL Error Corrections 3 5 these elements as shown 1n the Element Dictionary in Section 2 3 4 of Volume 3 of the GISTRUDL Reference Manuals Now the following error message is output and the scanning mode is entered ee ERROR STERRS 4 RIGIDITY MATRIX IS NOT SUPPORTED FOR ELEMENT xxxx SCANNING MODE ENTERED GPRF 93 09 The following warning message for temperature gradient loadings on the BPHT BPHQ SBHT SBHQ SBHT6 and SBHQ6 elements will now output the correct loading name An example of the warning message 1s shown below EEE ARNING THCE30 NOT ALL JOINTS FOR ELEMENT 1 INLOADING3 HAVE A SPECIFIED TEMPERATURE GRADIENT A VALUE OF 0 0 WILL USED FOR THE TEMPERATURE GRADIENT Previously the warning message could output an incorrect loading name No GPREF issued General Changes to stiffness and flexibility matrix member properties specified by giving the new matrix property values in the MEMBER PROPERTIES STIFFNESS FLEXIBILITY command in CHANGES mode are not reflected in the results of any subsequent analysis stiffness dynamic nonlinear etc in all versions of GTStrudl prior to Version 32 This problem has been corrected and such changes are now properly reflected in subsequent analysis results GPRF 2011 01 The UNSYMMETRIC SECTION option of the LIST SECTION STRESSES command has been corrected to utilize all the significant decimal values of the moment of inertia with resp
89. rror Corrections Chapter 3 Error Corrections This chapter describes changes that have been made to GISTRUDL to correct errors These errors may have produced aborts incorrect results or restricted use of a feature in previous versions of GISTRUDL The error corrections are discussed by the primary feature areas of GISTRUDL 3 1 DBX l In previous versions the results files created by the WRITE DBX MEMBER RESULTS command include results data for finite elements found in the command member list Finite elements are now skipped No GPRF Issued 2 The WRITE JOINT ATTRIBUTES command will no longer abort if an undefined joint is included in the list of joints No GPRE Issued gt The WRITE MEMBER RESULTS command will no longer write results for the first two nodes of finite elements in the specified member list Finite elements are now ignored in this command No GPRE Issued 4 Previous versions of WRITE DYNAMIC STIFFNESS could possibly be missing the final matrix rows due to incorrectly closing the generated file Usually when GTSTRUDL is closed the file buffer unwritten data is automatically flushed written to the file but for very large output files the automatic feature can fail resulting in an incomplete output file This has been corrected in Version 32 No GPRE Issued Error Corrections GT STRUDL 3 2 Dynamic Analysis l The COMPUTE MODAL DAMPING command no longer aborts when rigid body modes 1 e mo
90. rs labeled before and after the refinement to indicate the new members which were automatically created After Refinement with new split members labeled 594 GT STRUDL 10 New Features Redraw Solid will now draw members specified using the CHANNEL and POLYGONAL TUBE option of the MEMBER PROPERTIES Command Section Names for Model Display and Descriptors for the Property Legend Dialog are created for these shapes as well as for I SHAPES The naming convention is as follows Section Names for Model Display Shape Prismatic Member Variable Member I SHAPE I YD x ZD varISHP CHANNEL C Y D x ZD varCHAN POLYGONAL TUBE P SD OD varPOLY Descriptor for Property Legend Dialog Shape Prismatic Member Variable Member I SHAPE I YD x ZD x WBTK I YD x ZD CHANNEL C YD x ZD x WBTK C YD x ZD POLYGONAL TUBE Polygon SD OD x TH P SD OD x TH YD Depth of the member ZD Width of the flange WBTK Web thickness SD Sides in the polygon OD Outer diameter through the corners TH Thickness of the Polygonal Tube GTMenu now allows Landscape printing of graphics Select Portrait the default orientation or Landscape from the File menu The current orientation is shown by a check on the appropriate line in the File menu and is remembered during the current GTSTRUDL session but the next time you run GISTRUDL the default orientation will re
91. s Nonlinear analysis has not been performed for the following loadings 1 According to the AISC 13 Edition Code GTSTRUDL AISC13 code nonlinear analysis is required regardless of the method LRFD or ASD used For GTSTRUDL Version 32 the message above has been modified to reflect this AISC 13 Edition requirement xx x x WARNING STTECC Code check based on the AISC13 code requires nonlinear analysis Nonlinear analysis has not been performed for the following loadings 1 The steel design code EC3 2005 which is based on the Eurocode 3 Design of Steel Structures Part 1 1 General rules and rules for buildings DS EN 1993 1 1 2005 E has been moved to release status The documentation for the EC3 2005 code may be found by selecting the He p menu and then Reference Documentation Reference Manuals Steel Design and then EC3 2005 Eurocode 3 2005 in the GTSTRUDL Output Window When a value of YES has been specified for the parameter TowerCK the slenderness ratios are checked according to the transmission tower code provisions This option is applicable to the AISC13 and ASD9 codes for single and double angle cross sections and was a new option that was added to GISTRUDL Version 31 In GTSTRUDL Version 32 this option has been modified so that the AISC13 or ASD9 slenderness ratios L r KL r B7 TEN and B7 COMP are checked as informative provisions rather than pass fail conditions This means that as of Version 32
92. sequent calculations in GTSTRUDL GPRF 2004 14 4 3 GTMenu l Gravity loads and Self Weight loads are generated incorrectly for the TRANS3D element Workaround Specify the self weight using Body Forces under Element Loads ELEMENT LOADS command is described in Section 2 3 5 4 1 of Volume 3 of the GISTRUDL Reference Manual GPRF 95 18 2 The Copy Model feature under Edit in the Menu Bar will generate an incorrect model if the model contains the TRANS3D element Workaround Use the DEFINE OBJECT and COPY OBJECT commands in Command Mode as described in Section 2 1 6 7 1 and 2 1 6 7 5 of Volume 1 of the GTSTRUDL Reference Manual GPRF 95 21 Known Deficiencies GT STRUDL J The Load Summations option available under CHECK MODEL will produce incorrect load summations for line edge and body loads on all finite elements The Load Summations are also incorrect for projected loads on finite elements The load summations for line and edge loadings should be divided by the thickness of the loaded elements The body force summations should be multiplied by the thickness of the loaded elements for two dimensional elements Workaround You can check the load summation by specifying the LIST SUM REACTIONS command after STIFFNESS ANALYSIS No GPRF issued 4 Projected element loads will be displayed incorrectly when they are created or when they are displayed using Display Model gt Loads Workaround Verify that the loads are c
93. sides interior fill rcr Circle Humber li Radius ini s Sweep in degrees TE M Full circle S60 degrees Circular Start joo End ete i e e Offset from Plate Genter joo Offset from Origin T joo Base Plate Anchors A new capability to calculate the capacity of structural anchors in concrete by the methods of ACI 318 05 Appendix D has been added Commands are provided to enter the anchor properties base plate configuration and request a capacity check The new commands are documented in Volume 3 Section 2 9 e The ANCHOR TYPE command is used to describe anchor properties such as effective embedment length and diameter New Features GT STRUDL cast in ANCHOR TYPE a_name post installed HEF h DIAMETER d FUTA f ASE a1 i BRITTLE e The ANCHOR CONFIGURATION command is used to describe the geometry and properties of the base plate to be checked along with relevant properties of the bearing surface including edge location ANCHOR CONFIGURATION ac_ name ac title plate bearing surface anchor location anchor_loads rows edge edge distances phi_category sup_reinforce END ANCHOR CONFIGURATION e The PRINT ANCHOR command will output the specified anchor type or configuration data PRINT ANCHOR TYPE PRINT ANCHOR CONFIGURATION e The CHECK ANCHOR CONFIGURATION command checks a previously created anchor configuration with the requirements of ACI 318 Appendix D Anch
94. sulted into an incorrect lateral torsional buckling LTB computation has been fixed Also the user specified values for the parameters UNLCFTF and UNLCFBF are correctly considered in the lateral torsional buckling equations GPRF 2012 01 Error Corrections GT STRUDL This page intentionally left blank GT STRUDL Known Deficiencies Chapter 4 Known Deficiencies This chapter describes known problems or deficiencies in Version 32 These deficiencies have been evaluated and based on our experience they are seldom encountered or there are workarounds The following sections describe the known problems or deficiencies by functional area 4 1 Finite Elements l The ELEMENT LOAD command documentation indicates that header information such as type and load specs are allowed If information is given in the header and an attempt is made to override the header information a message is output indicating an invalid command or incorrect information is stored GPRF 90 06 2 The CALCULATE RESULTANT command may either abort or print out an erroneous error message for cuts that appear to be parallel to the Planar Y axis GPRF 94 21 gt Ifa superelement is given the same name as a member or finite element an abort will occur in the DEVELOP STATIC PROPERTIES command GPRF 95 08 4 The curved elements TYPE SCURV and PCURV will produce incorrect results for tangential member loads FORCE X An example of the loading command
95. the Common Macros folder which is the folder referenced in the Macro folder location box The Personal Macros folder option was added in version 31 but was not noted in the Release Guide GT STRUDL Options 2 The Display Response Spectrum File Data dialog has been enhanced by the addition of a check box option that allows you to indicate that the response spectrum acceleration values from the selected curve are to be displayed in terms of g s The check box entitled Acceleration Unit g is shown in check mode below Display Response spectrum File Data Px Active Units IN LES RAD SEC StdMa Ss Change Units Select Response Spectrum File MyRSFile W Acceleration Unit g Cancel Help 3 The Edit Paste verification message size has been increased to 15 lines from 10 and for paste buffers larger than 15 lines the first 10 lines of the buffer are displayed plus the last 5 lines of the buffer New Features GT STRUDL 2 7 2 8 Model Wizard The Finite Element Mesh Wizard 2D Mesh has three new elements added PBMITC SBMITC and Q6CDRL See the documentation for these new elements included in this Release Guide and Volume 3 of the GTSTRUDL Reference Manual Nonlinear A new optional parameter NGP i ngp has been added to the NONLINEAR EFFECTS PLASTIC SEGMENT option that provides for the specification of either two or three Gauss quadrature points for the numerical integration of the plasti
96. tion Section 2 1 14 4 Static Analysis Computed Results LIST Command Volume 1 GTSTRUDL Reference Manual 4 Two new options have been added to the LIST JOINT FORCES command GLOBAL WITH TOTAL and MEMBERS m list The GLOBAL option causes the member and element forces to be rotated from the local coordinate system to the global coordinate system and in the case of members with ECCENTRICITIES transformed from the flexible end of the member to the joint therefore LIST JOINT FORCES GLOBAL will not match LIST FORCES even after resolving the coordinate systems for members with ECCENTRICITIES The WITH TOTAL option will print the summation of all listed members and elements for each DOF for each joint and active load The GLOBAL option always outputs all 6 global DOF instead of being restricted to member DOF The MEMBERS m list option restricts the printed forces to members or elements in m_list and any joint that no member in m list is incident to will have an informative message printed indicating this condition No members or elements in the specified list 2 6 GT STRUDL New Features are attached to this joint so it is suggested that the MEMBERS m list option only be used in conjunction with JOINT Jist instead of the ALL JOINTS default to avoid a large number of these informative messages Syntax LIST JOINT FORCES Pe ee EE GLOBAL WITH TOTAL ALL JOINTS JOINTS list MEMBERS m list Examples
97. to experiment with these prerelease features and provide us with suggestions to improve these features as well as other GISTRUDL capabilities 5 1 2 GT STRUDL AISC13 Steel Design Code 5 2 Design Prerelease Features 5 2 1 LRFD3 Steel Design Code The LRFD3 code is primarily based on the AISC Load and Resistance Factor Design Specification for Structural Steel Buildings adopted December 27 1999 with errata incorporated as of September 4 2001 The Specification is contained in the Third Edition of the AISC Manual of Steel Construction Load and Resistance Factor Design 96 The LRFD3 code utilizes the Load and Resistance Factor design techniques of the AISC Specification Rather than use the LRFD3 code which is a prerelease feature users should use the AISC13 code which is now a released feature The LRFD3 code of GISTRUDL may be used to select or check any of the following shapes Design for bi axial bending and axial forces I shapes Round Bars Channels Square Bars Single Angles Rectangular Bars Tees Plate Girders Double Angles Design for bi axial bending axial and torsional forces Round HSS Pipes Rectangular and Square HSS Structural Tubes The documentation for the LRFD3 code may be found by selecting Help and then Reference Documentation Reference Manuals Steel Design and LRFD3 in the GTSTRUDL Output Window 2 ACI Code 318 99 GT STRUDL 5 2 2 ACI Code 318 99 Design of beams and columns by the 1
98. to files imported in landscape format from GTMenu Automatic Landscape Template File Location C Users Wade MA422 KW38 X1 Desktop m Margins in 0 01 inches 0 25 mm 7 Left margin for GTSTRUDL fies fo l Right margin for GTSTRUDL files 9 7 Top margin for GTSTRUDL files 9 Bottom margin for GTSTRUDL files o 8 A new feature has been added to Template processing allowing you to set the margins for each Template within the Template itself by adding a text entry beginning with lt lt Margins followed by the margin sizes Left Top Right Bottom in 0 01 inch 0 25 mm increments Margin values are separated by spaces and or commas All four margin values are required If this option is used the margin values specified in the Options dialog are ignored Template processing is what happens when you check one of the Automatically apply a template check boxes in the Options dialog as shown above This new feature allows you to easily switch between Templates without having to respecify margins in the Options dialog Example See PortraitTemplate ssc in C Program Files x86 GTStrudl 32 The text entry above the title box is lt lt Margins 75 75 75 125 which sets the Left margin as 0 75 19 mm theTop margin as 0 75 19 mm the Right margin as 0 75 19 mm and the Bottom margin as 1 25 32 mm New Features GT STRUDL This page intentionally left blank GT STRUDL E
99. turn to Portrait In addition when Print Portrait or Print Landscape 1s chosen from the File menu the standard printer selection dialog will be displayed Print Preview and Edit will open the Scope Editor with the image in the current orientation The Print button on the Button Bar will use the current orientation without the option to select a printer and send the current display to the default printer 2 25 New Features GT STRUDL 11 No automatic determination of the proper orientation is done so you can use the Print Preview and Edit option to determine the proper orientation for the current display Note that selecting an orientation Portrait or Landscape and then canceling the Printer Selection dialog will change the orientation without actually printing The new File menu Ge GTMenu Structural Modeling Tool ersion 37 File Create Edit Display Results Check Optid Print Portrait Ctrl F Restore Model w Print Landscape Ctrl L Save Model Print Preview and Edit Generate GT STRUDL text input Fage Setup w Print Portrait Ctrl F Print Landscape Ctrl L Print Prewiew and Edit Exit GTMenu Note A new sample template border box for Landscape printing is supplied in the 32 installation folder GTStrudl 32 LandscapeTemplate ssc You may now produce a contour plot of the mode shapes for a model which contains two or three dimensional finite elements The revised Results pulldown dialog with the n
100. using this dialog u8 Sum Forces Loading Select Load i Draw Load Arrows Set Load Options Cutthe Structure Globally Cut Perpendicular eS OF Ble f Elements Above Joints x y or z C Elements Below Joints x y or z On the ModeBar select Line for a Line Parallel to a Global Axis or Plane for a Plane Parallel to a Global Plane and then this Optionally Deselect Members or Elements Deselect Member s Deselect Finite Elements Forces Summed atthe Cut 9000 000000 pooo ooo000 o oo0000e 000 o oo0o00e so00 0 o00000es000 er0000 000000 l File send to Done M Output Window New Features GT STRUDL 13 Redraw Solid and Display Model Profile functions will now draw the nine Unistrut Profiles which are available in GTSTRUDL as shown below 14 Miultipoint and rectangular fencing are now available in the revised Mode Bar as shown below ee Rectangular C Include Only Completely Enclosed Items C Multi point C Include tems Clipped and Enclosed within the Closed Fence Boundary C EXIT Fencing List Fencing Line Plane C Yolume C Bound A multi point fence is specified as a sequence of vertices while a rectangular fence is specified as a selection window diagonally opposite points In either case the options to select only what is totally enclosed or to include items that cross a fence boundary are available for joint member and element selection 15

GTSTRUDL Version 32

Contents

Download Pdf Manuals

Related Search

Related Contents