Version 27 and new features in GTSTRUDL

1. Version 27 and new features in GTSTRUDL Kenneth M.(Mac) Will CASE Center GTSUG 2003 June 2003

2. Presentation Outline Status of Version 27 Release New features in Version 27 Longer term future enhancements

3. Version 27 Status Frozen and undergoing final QA Documentation being prepared Release Guides Volumes 1 & 2 Installation Guide Getting Started Analysis Guide Estimated shipping date is four weeks from now. If you would like a pre-release version, please let me know.

4. Electronic Documentation In addition to electronic documentation in previous releases, this version will also have the Reference Manuals

5. GTSTRUDL Startup  Model Wizard Default material properties for Shape & Dimensions is now concrete

6. GTSTRUDL Startup  Model Wizard Finite element mesh Model Wizard now allows you to specify variable spacing

7. Output Window (cont)Menu Bar Menu Bar has changed with SteelDesign and RC_Design selections

8. Output Window (cont) Modified File Pulldown

9. Output Window (cont)  Import commands from an existing Output File

10. Output Window (cont) Import GTSTRUDL Output File

11. Output Window (cont)(Import DXF function has changed The dialogs which control the Import from a DXF file have changed and new features have been added. The new dialog which pops up after selecting File, Import, and then DXF

12. Output Window (cont) Import DXF function You may assign Properties as shown in the following Output Properties dialog

13. Output Window (cont) Import DXF function The Layers and Groups tab in the above dialog allows you to assign layers in the DXF file to GTSTRUDL Group names.

14. Output Window (cont) Import DXF function Two dimensional finite elements can also now be created from a DXF file which contains closed polylines, 3Dface, and polygon mesh entities (Edge Surfaces in AutoCAD).

15. Output Window (cont) Export CIS/2 function New features have been added to the Export CIS/2 dialog. You may now specify the steel grade with the default being A36. You may also specify an assumed member type such as (beam, column, brace) and convert the vertical direction from Y to Z.

16. Output Window (cont) View Command History You can now view the Command History in a Notepad Window which will show you all commands automatically generated or specified

17. Output Window (cont) Edit Pulldown Refresh output text will refresh the output in the Window Text Editor – Notepad will open a Notepad window

18. Output Window (cont)Graphical Selection – Finite Elements can now be selected and displayed

19. Output Window (cont)Graphical Selection Elements may be displayed as solid, opaque, or wire frame. Element shrink factor may also be specified Colors may be specified for selected and unselected elements

20. Output Window (cont) Revised Modeling Pulldown

21. Output Window (cont) Loads – New Loading Case Can now view current load data

22. Output Window (cont)View current load data

23. Output Window (cont)New Dynamic Load options

24. Output Window (cont)Dynamic Load – Form Static Earthquake Loading

25. Output Window (cont) Dynamic Load – Form ’97 UBC Static Earthquake Loading

26. Output Window (cont) Calculate Foundation Spring Values New feature to calculate springs at nodes based on Modulus of Subgrade reaction and tributary area of finite elements New dialog and command for this feature with the new dialog being shown on the next slide

27. Output Window (cont) Calculate Foundation Spring Values

28. Output Window (cont) Modeling - Text Output New Output File Control option which will let you send output to the screen, append to an existing file, or replace an existing file

29. Output Window (cont) Model Verification New pulldown under Modeling New features which will allow you to locate and remove duplicate joints

30. Output Window (cont) Modeling – General pulldown New features which allow you to set the startup units, add notes, and reserve resources for large problems (more on these features later)

31. Output Window (cont) Analysis Pulldown New features have been added to the Analysis pulldown which will allow you to perform a linear buckling analysis

32. Output Window (cont) Analysis Pulldown – Dynamic New dialogs have been added which allow you to select dynamic dof and to set dynamic parameters. A new Dynamic Analysis Physical dialog and Nonlinear Dynamic Analysis dialog have also been added

33. Output Window (cont) Analysis Pulldown – DynamicDynamic DOF and Parameters dialogs

34. Output Window (cont) Analysis Pulldown – DynamicDynamic Analysis Physical dialog

35. Output Window (cont) Analysis Pulldown – DynamicNonlinear Dynamic Analysis dialog

36. Output Window (cont) Results pulldown Results pulldown has been modified with new options including new dialogs for plastic hinge and pushover analysis

37. Output Window (cont) Results pulldown – Static/NL Results

38. Output Window (cont) Results pulldown – Static/NL Results New summary option on the Section Forces dialog which will allow you to obtain a summary of the maximum and minimum values for each member You can also obtain only the summary output The modified dialog is shown on the next slide

39. Output Window (cont) Results - Section Force dialog

40. Output Window (cont) Results – Plastic Hinge Results options

41. Output Window (cont) Results – Plastic Hinge Results dialogs

42. Output Window (cont) Pushover Results options

43. Output Window (cont) New Pushover Results dialogs

44. Output Window (cont) New Pushover Results Display dialog

45. Output Window (cont) New Pushover Results Plot (Example)

46. Output Window (cont) Steel Design Pulldown Modifications The Steel Design Pulldown has been reorganized as shown below:

47. Output Window (cont) Steel Design Pulldown Modifications A new option has been added to the Define Physical Member dialog to automatically create physical member names:

48. Output Window (cont) Steel Design Wizard Modifications New Loading Combination and Edit Load Combination dialogs have been added to the Steel Design Wizard. Also, column lines are no longer needed for K factor computation.

49. Output Window (cont) Steel Design Wizard ModificationsTBLNAM Parameter Selection A new selection dialog for the parameter TBLNAM has been added which displays GTSTRUDL Table Category data that corresponds to the code selected by the user.

50. Output Window (cont)  Steel Design Wizard ModificationsTBLNAM Parameter Selection When editing the member list in the PARAMETER dialog, a new text box has been added to facilitate editing of the member list.

51. Output Window (cont) New RC_Design Pulldown

52. Output Window (cont) New RC_Design Pulldown Dialogs

53. Output Window (cont) New RC_Design Pulldown Dialogs

54. Output Window (cont) New RC_Design Pulldown Dialogs

55. Output Window (cont) New RC_Design Pulldown Dialogs

56. Output Window (cont) Other Improvements An “Activate/Inactivate loadings” button has been added to Section Displacements dialog. Deflection Check results have been added to the Code Check Results datasheet. Datasheets now alert the user if the number of data entries exceeds the display limit. The Active Modes dialog for Dynamics has been made larger and a new “Automatic Inactivation” feature added. Component lists (joints, members, loads) are now written with the ‘n TO m” format for sequential series of names, “1 2 3 4 5" now becomes “1 TO 5".

57. Output Window (cont) Other Improvements The maximum length of a component list has been increased to 1500 from the previous limit of 500. A history of user library (userdat.ds) files is now kept. Windows 2000 and XP now respect the Working Directory when opening a file selection dialog. CABLE elements are displayed, but are not selectable in Graphical Selection. The menu bar and some ‘File’ menu selections are ‘grayed out’ (not selectable) while GTMenu is running. The version number of the GTSTRUDL Solver (e.g. “27.01") and completion date are now displayed in the “Help About GTSTRUDL” box. FINISH statistics are now more reliably printed. Previously, the last few lines of output would not be displayed on fast computers.

58. DBX The WRITE MEMBER PROPERTIES LONG NAME function now uses a caching technique to speed up the file writing process ( up to 80% reduction )

59. Dynamics The LIST RESPONSE SPECTRUM command has been extended to include the BASE/STORY shear option Spring stiffness damping factors in the JOINT RELEASES command has been expanded to allow for the specification of a separate damping factor for each individual spring value

60. Dynamics (cont) A new FORM UBC97 LOAD command has been implemented for generating a static lateral seismic load according to the ’97 UBC code A new FORM IS1893 STATIC SEISMIC LOAD command has been implemented for generating a static lateral seismic load according to the IS1893 code Memory allocation has been significantly improved in modal time history analysis. Improvements of two to three orders of magnitude have been realized.

61. Dynamics (cont) A new element, the viscous damper or dash pot element, has been implemented for use with Physical and NL Dynamic Analyses. A new Damper Element Data command has been implemented. The output from LIST TRANSIENT AND LIST HARMONIC commands now includes an additional line in which the integer time point or frequency point number for the maximum responses is listed

62. Dynamics (cont) The CREATE RESPONSE SPECTRUM command now allows for the creation of response spectrum results versus Period The message indicating that consistent mass was not available for some finite elements so a lumped mass was used has been eliminated based on user requests.

63. Efficiency Improvements A new LARGE PROBLEM command has been implemented to reserve Windows resources for your GTSTRUDL execution. LARGE PROBLEM SIZE i (where i is from 1-5 with 5 being the largest. An example between Version 27 using LARGE PROBLEM SIZE 5 and Version 26 is shown on the next slide.

64. Efficiency Improvements (cont)Example illustrating the benefits of using the new LARGE PROBLEM SIZE 5 command 27676 Joints 24540 Tridimensional elements 1 loading Average + std. deviation of band =772 Version 27 Version 26 TIME FOR CONSISTENCY CHECKS FOR 24540 MEMBERS 2.35 5.35 TIME FOR BANDWIDTH REDUCTION 8.78 63.59 TIME TO GENERATE 24540 ELEMENT STIF. MATRICES 28.28 344.04 TIME TO ASSEMBLE THE STIFFNESS MATRIX 5.76 35.30 TIME TO PROCESS 27676 JOINTS 0.61 17.78 TIME TO SOLVE WITH 2307 PARTITIONS 1484.51 1804.58 TIME TO PROCESS 27676 JOINT DISPLACEMENTS 1.97 22.60 TIME TO PROCESS 24540 ELEMENT STRESSES 16.23 58.76 TIME TO PROCESS 24540 ELEMENT REACTIONS 90.65 25.92 TIME FOR STATICS CHECK 3.45 14.59 Total CPU Time 1967 2745

65. Efficiency Improvements (cont) The RESTORE command and dialogs which Open .gts files have been made more efficient especially for large databases (>100 MB). Improvements of up to 95% have been experienced.

66. Finite Elements CALCULATE SOIL SPRING VALUE command has been added as a prerelease feature. This has been previously discussed. The following finite elements are supported by this command: Plate bending; CPT,BPHT,BPR,BPHQ,IPBQQ Plate; SBCT,SBCR,SBHQ,SBHQCSH,SBHT, SBHT6,SBHQ6 Tridimensional; TRIP, IPLS,IPQS,IPSL,IPSQ An example is shown on the next slide.

67. Finite Elements (cont)Calculate Soil Spring example CALCULATE SOIL SPRING VALUES DIR Z KS 100 ELEMENTS EXISTING APPLY UNITS FEET KIP JOINT RELEASES $ Joint Dir Spring value $ -------- --- ------------ 1 KFZ 156.250 2 KFZ 312.500 3 KFZ 312.500 4 KFZ 312.500 5 KFZ 156.250 6 KFZ 312.500 7 KFZ 625.000 8 KFZ 625.000 9 KFZ 625.000 10 KFZ 312.500 11 KFZ 312.500 12 KFZ 625.000 13 KFZ 625.000 14 KFZ 625.000 15 KFZ 312.500 16 KFZ 312.500 17 KFZ 625.000 18 KFZ 625.000 19 KFZ 625.000 20 KFZ 312.500 21 KFZ 156.250 22 KFZ 312.500 23 KFZ 312.500 24 KFZ 312.500 25 KFZ 156.250

68. Finite Elements (cont ) Temperature gradient loading has been implemented as a prerelease feature for the BPHT, BPHQ, SBHQ, SBHQCSH, SBHT, SBHQ6, and SBHT6 elements. Several users have requested this feature. The warning message concerning the integration order not being specified for many of the isoparametric elements (IPQL family, IPSL, IPSQ, and TRANS3D) will no longer be output.

69. General A new command, ROTATE LOADING, has been implemented as a new option that can be given under any independent loading command. This command specifies another independent loading condition that will be created by rotating the global force and moment components.

70. General (cont) A new NOTE feature has been implemented. A NOTE is text information that can be assigned a type or category and then be assigned to a set of components such as joints, member, or loads. A PRINT NOTE command has also been implemented.

71. General (cont) A new ALIGN command has been implemented to adjust the coordinates of joints so the “top” joint has the same X and Z coordinates as the bottom joint. This is to ensure that all these members follow the ‘Special Case’ for the local coordinate system definition.

72. General (cont) The RUN command allows you to run external programs or DOS batch (cmd) files with a GTSTRUDL command. This is useful for automating procedures that rely on GTSTRUDL generated data. The PRINT MEMBER DIMENSIONS command no longer requires the MATERIAL REINFORCED CONCRETE command. As discussed previously, users can now set their startup units. This can be done by using the dialogs or creating a string Registry value.

73. General (cont) A new SUMMARY option has been added to the LIST SECTION FORCE and LIST SECTION STRESS commands. This option will print the max and min values of each stress type for each member in the list and an overall summary for all members in the list. A SUMMARY ONLY OPTION also exists which will print only the summary information. LIST SECTION STRESS WITH SUMMARY MEM 1 TO 10 LIST SECTION FORCE SUMMARY ONLY MEM 1 TO 10

74. GTMenu The Menu Bar in GTMenu has been rearranged as shown below with the Coordinate System feature removed from the Button Bar and placed on the Menu Bar.

75. GTMenu (cont) The default naming convention for Member Property Table Profiles has been changed to the Long Name naming convention:

76. GTMenu (cont) The Edit pulldown has been reorganized to separate Joints, Members, and Elements

77. GTMenu (cont) Display Loads will now display the following loading types: Joint displacements displayed as vectors Member temperatures Axial temperatures are displayed as axial temperature loads Bending temperatures are displayed as distributed loads perpendicular to the member Joint temperatures Changes are displayed with a box around the joint Gradients are displayed as double arrows at the joint

78. GTMenu (cont) The modified Display Load dialog is shown:

79. GTMenu (cont) An option to draw the deformed shape of members between the joints has been added under the Results pulldown for Static Joint Displacements. The deformed shape may be animated. Values of the deformed shape may also be labelled. An example is shown on the next slide.

80. GTMenu (cont)Example showing deformation between joints with displacements labeled

81. GTMenu (cont) The Button Bar has been changed as shown above. The Active load entry has been added to the Button Bar which will display the first independent static load. If you click the down arrow, a list of the current independent static loads will appear.

82. GTMenu (cont) Member properties specified using the Member Dimension command can now be displayed as solid shapes using Redraw Solid. Rectangle, Circle, Tee, LL, and RL cross sections may now be displayed as well as structural walls.

83. GTMenu (cont) Right click editing has been expanded with the following features: Dialogs are initialized with current values where appropriate You can change all with the same value in the model You can change the selection and specify additional You can change the selected attributed only An example is shown on the next few slides

84. GTMenu (cont)Right click editing example Shown below is the Inquire Output for Member 23. Double click Member Releases to Edit the Releases.

85. GTMenu (cont)Right click editing example

86. GTMenu (cont)Right click editing example After removing the MZ release at the end of the member, the Inquire Output is updated.

87. GTMenu (cont)Inquire Button New options to Inquire on Loads have been added to Inquire button pulldown. An example is shown on the next few slides.

88. GTMenu (cont)Inquire Loads Example

89. GTMenu (cont)Inquire Loads Example Select the load to be edited either by double clicking or highlighting the load and clicking on the Edit button will bring up this dialog:

90. GTMenu (cont)Inquire Loads Example

91. GTMenu (cont)Inquire Loads Example

92. GTMenu (cont) Information in the Inquire Output can now be sent to the GTSTRUDL Output Window _____________________________________________________________________ Output from GTMenu follows: Member Name: 26 Length: 120.00 Type: PLANE FRAME XY Incidences _ Start: 18 End: 19 No Eccentricities or End Joint Sizes No Member Releases Member Beta Angle: 0.00 Member Property: W18X35 Member Material: STEEL Member Name: 22 Length: 120.00 Type: PLANE FRAME XY Incidences _ Start: 13 End: 14 No Eccentricities or End Joint Sizes No Member Releases Member Beta Angle: 0.00 Member Property: W18X35 Member Material: STEEL End of Output from GTMenu _____________________________________________________________________

93. GTMenu (cont) The default orientation for views in GTMenu can now be set to have the Z-axis as the vertical axis (Z up). This affects GTMenu default views 1,3 and 4.

94. GTMenu (cont) Zoom, Rotate, and View changes are now saved in whatever order they are specified. You may now access previous zoomed or rotated displays using new Menu picks under the Zoom and Rotate buttons such as Zoom Previous, Zoom Forward, Previous Rotation, and Next Rotation.

95. GTMenu (cont)Hotkeys

96. GTMenu (cont)Other Improvements A previously specified font size is retained throughout the session The default font size has been made smaller for higher resolution displays The cursor is displayed as an hourglass during operations which can take considerable time The Copy Model Scaling options have been redesigned to make them easier to understand Tool Tips now automatically appear when the cursor is placed over items in the button bar

97. GTMenu (cont)Other Improvements Curve definitions now use 360 straight line segments to approximate the curve Prompts for each of the 3 points used to define a circular arc curve have been added. After editing the Beta angle for members, the new profile with axes is now drawn in the graphical display area When entering GTMenu with superelements, the default element type assumed pop-up will no longer occur and superelement definition data will be retained.

98. GTMenu (cont)Other Improvements GTMenu is no longer limited to 32,768 joints, members, or elements. The limit is now 1,000,000 but other computer resources may limit the size of the model. A Reset button has been added to the Default Colors dialog which will reset the colors to the colors at the start of the work on the current model. The GTSTRUDL Version number is now placed on the GTMenu Title Bar

99. GTMenu (cont)Other Improvements The text input file now contains Long Names for the steel profiles The number of items listed before a new header in the text input file has been increased from 20 to 100 resulting in fewer header items and a slightly smaller file Superelement definition data is now written to the input file.

100. Nonlinear Analysis The DEFINE CABLE NETWORK command has been expanded to include absolute tolerance specs for the SAG COORDINATE and INITIAL TENSION options which will allow you specify an absolute prestress analysis convergence tolerance for an individual cable network

101. Nonlinear Analysis (cont) New PRINT CABLE PRESTRESS ANALYSIS data command has been added Plastic hinge nonlinearity has been extended to provide for the description and specification of custom piece-wise linear stress-strain curves for the steel and concrete material of plastic hinges.

102. Nonlinear Analysis (cont) The new STORE STRESS STRAIN CURVE, DELETE STRESS STRAIN CURVE, and PRINT STRESS STRAIN CURVE commands provide for the description and management of the piece-wise linear stress-strain curve data. The new CURVE option in the NONLINEAR EFFECTS, PLASTIC HINGE command provides for the assignment of custom stress-strain curves to define the steel and concrete stress-strain behavior of plastic hinges.

103. Nonlinear Analysis (cont) The new pushover analysis output command LIST PUSHOVER LIMIT LOAD has been added. This command is used to list the intermediate pushover analysis incremental storage load at which a specified plastic hinge limit strain is first equaled or exceeded for the plastic hinges in each of a specified set of members.

104. Nonlinear Analysis (cont) New NL analysis output commands LIST PLASTIC HINGE STRESSES LIST PLASTIC HINGE DUCTILITY and the LIST PUSHOVER DUCTILITY commands now include a YIELD STRAIN parameter for the computation of these ductility factor results New nonlinear spring element, NLS4PH, where the stiffness properties are described by a bilinear, symmetric and hysteretic curves. May be used in both static and dynamic NL analyses.

105. Nonlinear Analysis (cont) The plastic segment, a new version of the plastic hinge nonlinear effect, has been implemented. The PLASTIC HINGE selection means that the member plasticity behavior is modeled by a discrete, zero-length spring mechanism lumped at the start and/or end of the member. The PLASTIC SEGMENT selection means that the member plasticity behavior is distributed along the length of a segment of length LH (specified plastic hinge length) at the specified start and/or end of the member.

106. Offshore The depth below the water surface, Z, is now automatically computed for the hydrostatic collapse check for the APIWSD20 and APILRFD1 codes.

107. Scope Editor The Scope Editor has been enhanced to Export a Metafile. This Metafile may be brought into AutoCAD. Also added under File is the ability to Open Scope Editor documents (.SSC files) from earlier releases.

108. Steel Design The Third Edition of the LRFD code (LRFD3) has been implemented for the following shapes: I shapes Single Angles (axial load only) Double Angles (axial load only) Round HSS (pipes) Square and Rectangular HSS (structural tubes)

109. Steel Design (cont) The British steel coded based on BS 5950-1:2000 has been implemented as a prerelease feature. This code is available for the following shapes: I shapes Single angles (axial load only) Circular Hollow Sections (pipes)

110. Steel Design (cont) Column lines are no longer needed in the K factor computation. An automatic search is now performed to detect columns When the K factor computation is requested, the computed K factors will now be automatically printed after CHECK and SELECT results New LRFD3 steel grades have been added to the ASD9 code

111. Steel Tables New Brazilian I shape steel tables have been added from ABNT, NBR 5884 as a prerelease feature: CS – welded plate girder shapes for columns CVS – welded plate girder shapes for beams and columns VS – welded plate girder shapes for beams

112. Steel Tables (cont) New HSS tables have been added as a prerelease feature from the LRFD 3rd edition: RoundHS – round HSS (pipes) RectHSS – rectangular and square HSS (structural tubes)

113. Future Enhancements Graphically display plastic hinge status and other pushover information Create nonlinear spring and cable information in the input file created by GTMenu

114. Future Enhancements (cont) Label values of forces at ends of members in GTMenu Boundary outline option in GTMenu to show edges where only one finite element is attached. This is useful when model is built in pieces to be sure that the parts are connected together.

115. Future Enhancements (cont) Graphically specify joints and elements to be used with CALCULATE RESULTANT Label Values on Diagrams and Envelopes automatically – max and mins Mirror option under Copy Model in GTMenu List the contents of a Group in an Inquire box. Currently the contents can only be displayed graphically

116. Future Enhancements (cont) Add the ability to generate Joints by Projecting on Lines Allow a 2-point line to be specified using "Start and End" mode, as for Member generation. Currently "End to End" mode is assumed

117. Future Enhancements (cont) Add a list of original names to the list of duplicate names for Joints, Members and Elements Expand the Member and Element generation Spacing option, "Defined by Line/Curve", to accept an n-point line of up to 500 segments. Currently it is limited to 50 segments

118. Future Enhancements (cont) Add the option to Split Members to interpolate eccentricities between the start and end of the split members Locate a Global Plane with a pick on the structure. Currently a Global Plane requires a coordinate value Ability to click on a member and have a graphical summary of the results on just that member in a separate Window that can be printed

119. Future Enhancements (cont) New optional equation solvers and data structures which bypass Microsoft’s 2GB limitation on page file. We will have a QA’d release after Version 27 which allows up to a 3GB page file. This version requires that you have Advanced Server from Microsoft. We will also work on new equation solvers which get around the limitation on the page file as well as other file limitations imposed by the compilers.

120. Future Enhancements (cont) SELECT or CHECK based on maximum forces Add GTTABLE commands into GTSTRUDL Modify ASD9 code to allow for E to be specified such as when designing in a high temperature environment Displacement Constraint Design based on presentation tomorrow afternoon by A. Maham ACI 318-2002

121. Future Enhancements (cont) Data sheets for more results and load information. In addition, new datasheet features will include direct printing, spreadsheet friendly (tab delimited) output files, and direct launching of spreadsheets from the datasheet Be able to use the Model Wizard with an existing structure. Control the numbering in the Model Wizard Dialogs for NL cable elements

122. Future Enhancements (cont) New Area Load command to automatically generate the loads on floor systems with one way and two way distribution. This command will automatically distribute the load to members on a floor. Ability to specify Area Load graphically.

123. Future Enhancements (cont) ISO 2000 equivalent static earthquake load All member and element support for DEAD LOAD and SELFWEIGHT LOAD commands All member and element support for INERTIA OF JOINTS FROM LOADING Hysteretic behavior for plastic hinges and nonlinear member end connections Custom cross-section fiber geometry specification for plastic hinges using basic circles, rings, and rectangle areas

124. Future Enhancements (cont) Automated displacement control for pushover analysis Generalizing nonlinear frame member model to support large finite rotation behavior Center of stiffness computation in dynamic analysis

125. What do we need? New Wizards to make it easier for you to use features. (Cable analysis,…..) Which new datasheets would you like? What codes are you using and are there any new features that will make you more productive?

126. Copies of this presentation, etc. Handouts are available although there have been a few changes since the handouts were prepared You will be able to download this presentation on June 27th from out web site at www.gtstrudl.gatech.edu . Demo of some new features is next. Other demos during committee meetings.