GTSTRUDL Version 28 and Beyond

1. GTSTRUDL Version 28 and Beyond  Kenneth M.(Mac) Will CASE Center GTSUG 2005 June 2005

2. Presentation Outline Version 28 status Additional features added to Version 28 since last June�s presentation Enhancements planned for Version 29 Future enhancements Demonstration of some of the new features

3. Version 28 Release Status QA complete Documentation complete including electronic pdf documents Release Guides Volumes 1 & 2 Installation Guide Getting Started Analysis Guide Design Guide Revision R of Reference Manuals (Volumes 1, 2A,2B,3,4,5,7,8 and Abstract of Commands) CD�s are being duplicated Student Version of 28 (Student Edition 9.0) will be available in September

4. Additional Features in Version 28 Several additional features have been added to Version 28 which were not included in the 2004 presentation. These additional features are briefly described on the next slides.

5. Additional Features in Version 28 New feature added to File pulldown to �Create a New Text Input File�. This allows you to create a text input file as you would from GTMenu without requiring you to enter GTMenu.

6. Additional Features in Version 28 The Modeling pulldown has been restructured and new features have been added under the Loads and Create Joint Constraints options.

7. Additional Features in Version 28 A new option is available under Loads to create Area loads. The next few slides illustrate the new Area load dialogs.

8. Additional Features in Version 28

9. Additional Features in Version 28

10. Additional Features in Version 28

11. Additional Features in Version 28 New Joint Constraints dialog

12. Additional Features in Version 28 The Results pulldown has been modified. A Datasheets option has been added. Also, new features have been added to the Static Results pulldown.

13. Additional Features in Version 28 New List Sum Forces dialog

14. Additional Features in Version 28 A new option has been added to the Section Forces dialog to include the output of corresponding forces. For example, for the section location and loading that causes the maximum value of MZ, the associated values of other force and moment components will also be output.

15. Additional Features in Version 28 The results datasheets have been further enhanced to allow the ability to write a tab delimited file. This file may then be opened in Excel. An example of the new Member End Force datasheet is shown on the next slide. Then, the following slide shows the new File pulldown and the Print and Write <Tab> file dialogs.

16. Additional Features in Version 28

17. Additional Features in Version 28

18. Additional Features in Version 28 The List and Compute dialogs under Dynamic Analysis results have also been modified. Separate buttons for the selection of Members and Elements now appear at the bottom of the dialogs.

19. Additional Features in Version 28 A new option has been added to the Create Cross Section Property Database dialog to allow the display of results generated during the creation of the Property Database (profile table). This new option is shown on the next slide.

20. Additional Features in Version 28

21. Additional Features in Version 28 A new feature has been added to the GTSTRUDL Output Window. Right clicking the mouse in the GTSTRUDL Output Window will bring up the following pop-up:

22. Additional Features in Version 28 A new Display Options button has been added to the Element Contours dialog in GTMenu. The Contour Display Options dialog is shown on the next slide. Then, an additional slide illustrates the use of this option to display contours only in a range of stress.

23. Additional Features in Version 28 New Contour Display Options dialog. Example illustrating setting the minimum stress to display inside the limit to 5.0.

24. Additional Features in Version 28

25. Additional Features in Version 28 A number of changes have been implemented in the Input File created in GTMenu: The Material Command is now used for standard properties. Excessive comment lines ($$) have been removed. Joint Coordinates and Member Incidences now generate only one blank initial spacing line.

26. Additional Features in Version 28 Adjacent joints with the same spring values are now grouped together under Joint Releases. Element Incidences are now written with the element name and up to 8 incidences on a single line. A Beta Angle of 0.0 is no longer listed.

27. Additional Features in Version 28 If you �End GTMenu� while in a view other than Views 1 to 4, a new dialog will appear as show below. Also, shown is the dialog from Version 27 which is replaced by the new dialog:

28. Additional Features in Version 28 Additional enhancements in GTMenu: The contour legend is redrawn when a contour is refreshed. The prompt asking if you would like to update the View database has been removed. A larger dot is drawn for the grid points when using Create Members or Elements Using a Grid.

29. Additional Features in Version 28 Additional enhancements in GTMenu (cont): The material, Prismatic, and Pipe Property Group dialogs now have an option to bring up a calculator. Also, the Property Group dialogs will now display the longnames. A larger X is now used to indicate if a joint has been selected.

30. Additional Features in Version 28 New features added to Dynamics: Assembly of the mass matrix for dynamic analysis no longer forces the mass matrix to be consistent mass when joint constraints are present. The Compute Composite Damping Ratios command has been extended whereby the composite modal damping ratios can now be computed assuming that the damping is proportional to stiffness and mass. Efficiency improvements have also been made for the assembly of dynamic mass and composite modal damping matrices for models which contained rigid bodies and damping ratios for joint inertias.

31. Additional Features in Version 28 New features added to Finite Elements: The element name in the Element Properties command is no longer required to be in upper case or to have single quotes around the name. The temperature gradient loading capabilities on the BPHT, BPHQ, SBHQ, SBHQCSH, SBHT6, and SBHQ6 elements has been brought to a release status.

32. Additional Features in Version 28 New General features added: New commands have been added to delete joints, elements or members that do not have any data associated with them: Delete Joints Without Coordinates Delete Members Without Incidences Delete Elements Without Incidences The Summary option for List Section Forces has a new option to include the output of Corresponding Forces: List Section Forces Summary and Corresponding Forces An example is shown on the next slide.

33. Additional Features in Version 28 LIST SECTION FORCES SUMMARY AND CORRESPONDING FORCES MEMBER 27 The following is the output produced by the above command: ----------------------------------------------------------------------------------------------- Max/min Section Forces for member 27 , locations are fractional. Value Load Location Value Load Location ------------- -------- -------- ------------- -------- -------- Max FX: -0.5 4 1.0000 Min FX: -2. 2 1.0000 Max FY: 10. 2 1.0000 Min FY: -0.1E+02 2 0.0000 Max FZ: 0.0E+00 4 1.0000 Min FZ: 0.0E+00 4 1.0000 Max MX: 0.0E+00 4 1.0000 Min MX: 0.0E+00 4 1.0000 Max MY: 0.0E+00 4 1.0000 Min MY: 0.0E+00 4 1.0000 Max MZ: 3. 4 0.0000 Min MZ: -0.2E+02 2 0.0000 Corresponding Forces for FX FY FZ MX MY MZ Max FX -0.5040967 0.6305282 0.0000000E+00 0.0000000E+00 0.0000000E+00 -3.548704 Min FX -2.147321 9.721370 0.0000000E+00 0.0000000E+00 0.0000000E+00 -12.43836 Max FY -2.147321 9.721370 0.0000000E+00 0.0000000E+00 0.0000000E+00 -12.43836 Min FY -2.147321 -10.27863 0.0000000E+00 0.0000000E+00 0.0000000E+00 -15.22468 Max FZ -0.5040967 0.6305282 0.0000000E+00 0.0000000E+00 0.0000000E+00 -3.548704 Min FZ -0.5040967 0.6305282 0.0000000E+00 0.0000000E+00 0.0000000E+00 -3.548704 Max MX -0.5040967 0.6305282 0.0000000E+00 0.0000000E+00 0.0000000E+00 -3.548704 Min MX -0.5040967 0.6305282 0.0000000E+00 0.0000000E+00 0.0000000E+00 -3.548704 Max MY -0.5040967 0.6305282 0.0000000E+00 0.0000000E+00 0.0000000E+00 -3.548704 Min MY -0.5040967 0.6305282 0.0000000E+00 0.0000000E+00 0.0000000E+00 -3.548704 Max MZ -0.5040967 0.6305282 0.0000000E+00 0.0000000E+00 0.0000000E+00 2.756577 Min MZ -2.147321 -10.27863 0.0000000E+00 0.0000000E+00 0.0000000E+00 -15.22468

34. Additional Features in Version 28 New enhancements to Offshore: Dramatic efficiency improvements have been made to the processing of wave load data for fatigue analysis. Offshore punching shear output has been modified to print the largest stress actual/allowable ratio and also the largest geometry check actual/allowable ratio. Two new options have been added to the punching shear code check command to print a summary of the punching shear code check results and the largest actual/allowable ratios.

35. Additional Features in Version 28 New Steel Design Enhancements: A special Ninth Edition AISC allowable stress design code called ASD9-E has been implemented for W shapes. The equations have been modified to include E. This is useful for structures where E and possible other material data must be modified to account for high temperature. The List Code Check Results command has been modified to display the members which failed member constraints checks.

36. Additional Features in Version 28 New Steel Design Enhancements (cont): Automatic K-factor computation output has been enhanced to display the support status at the end of a column. CW computation in the NF83 code has been modified to check the table database to see if CW exists and to use the database value if it exists. Commands with Joint, Member, and Load List options are now checked for non-existent joints, members, or loads. An error message is output if a user specifies non-existent data in a list.

37. New Features for Version 29

38. GTSTRUDL Model Wizard New Model Wizards for Braced Frames Circular Plates Rectangular Tanks

39. Model Wizard (cont)

40. Braced Frame Model Wizard X and Chevron Bracing User may select the bays to be braced User may select releases on beams and braces

41. Braced Frame Model Wizard (cont)

42. Braced Frame Model Wizard (cont)

43. Circular Plate Model Wizard Generates a finite element plate model using SBHQ6 and SBHT6 elements User may control the number of divisions in the radial and circumferential directions Plate may have hole at the center Supports at edges or soil springs under plate with an option for compression only springs Self weight and pressure loadings

44. Circular Plate Model Wizard (cont)

45. Circular Plate Model Wizard (cont) Support options

46. Circular Plate Model Wizard (cont) Load options

47. Rectangular Tank Model Wizard Generates a finite element plate model using SBHQ6 and SBHT6 elements User may control the number of spaces in the X, Y, and Z directions for the finite element mesh Pinned or fixed supports on all bottom joints or elastic soil springs on all bottom joints Self weight, internal pressure and hydrostatic loadings

48. Rectangular Tank Model Wizard (cont)

49. Rectangular Tank Model Wizard (cont) Support options

50. Rectangular Tank Model Wizard (cont) Loading options

51. Additional Model Wizard Enhancement The Plane Frame and Braced Frame Model Wizards allow you to specify the vertical direction to facilitate using the Model Wizard multiple times for the same model with frames in different planes

52. GTMenu New cylindrical coordinate systems (cylindrical system with the X, Y or Z axis as the axis of the cylinder)

53. GTMenu (cont) Member Releases are now output using a rotated font instead of being drawn as shown on the next slide This permits selecting and editing the text in the Scope Editor

54. Example showing GTMenu Member Releases in Version 29

55. The Same Example Showing GTMenu Member Releases in Version 28

56. GTMenu (cont) Ability to Move all or part of the model Move based on distance between two joints or Move based on incrementing coordinates in current coordinate system (Cartesian, Cylindrical, or Spherical)

57. GTMenu Move Model (cont)

58. GTMenu (cont) New Mirror option on Copy Model Dialog Mirror about XY, XZ, or YZ planes Planes can be identified as passing through a coordinate value or by selecting a joint Option to maintain incidence order

59. GTMenu Mirror Option on Copy Model Dialog (cont)

60. Mirror Example using FE mesh

61. Mirror Example using FE mesh -After mirroring

62. Mirror Example using FE mesh -After mirroring with incidence order maintained

63. GTMenu (cont) New Extrude Model option available under Edit pulldown

64. Extrude Model Dialog Extrude frame model with members connecting each extrusion repetition Extrude selected 2D members to 2D finite elements Extrude all 2D finite elements to 3D solid finite elements

65. Extrude Model Spacing Dialog Uniform or variable spacing Add downward columns � columns below a floor level

66. Extrude Selected Joints Dialog

67. Resulting Model from Extruding Selected Joints

68. Extrude 2D Finite Elements to 3D Solid Finite Elements � Starting 2D model

69. Extruded 3D Solid Model

70. Other GTMenu enhancements Add the ability to automatically label the maximum and minimum values on force diagrams and envelopes. To accomplish this, a new check box is added to the Member Forces dialog as shown on the next slide. An example is also shown on a subsequent slide.

71. Label Max and Min Values on Diagrams and Envelopes New dialog with option to label maximum and minimum values

72. Example Showing Labeling of Maximum and Minimum Values and Locations on Moment Diagram

73. Other GTMenu enhancements CQSHELL6 plate element Models can be created using this new element in GTMenu Element Loads can be applied in GTMenu Stress results can be contoured Highlight an entire element when it is selected Left click an item (joint, member, or element) a second time to deselect it Add Punching Shear code check result to GTMenu

74. Other GTMenu enhancements Add a Display Options capability to the Principal Vector display for principal stress vectors similar to the one shown here for contouring

75. Other GTMenu enhancements Global Plane menu allows hitting a joint. Previously, the user had to specify a coordinate value.

76. Other GTMenu enhancements Addition of the following items to the input file created by GTMenu: Joint Ties, Rigid Bodies, and Slave Releases Dynamic Loadings Eigenparameters Dynamic Modal Damping Data Nonlinear Effects Nonlinear Spring Properties Nonlinear Solution Parameters Cable Network Data

77. Linear Buckling Analysis Implement space truss members for linear buckling analysis Implement space frame members with member releases for linear buckling analysis

78. Dynamic Analysis A new version of the out-of-core GTLANCZOS eigenvalue analysis solver called GTHCLANCZOS has been implemented and is currently undergoing testing. GTHCLANCZOS does less to improve efficiency than it does to significantly increase the size of the eigenvalue problem that can be solved. To date, we have successfully solved eigenvalue problems having 240,000 DOFs as shown on the next slide.

79. Dynamics (cont) Bandwidth 1179 Joints 39765 Members and Elements 46587 Number of Modes 100 ***************************************** * Solution data for GTHC-LANCZOS Solver * ***************************************** Number of dynamic degrees-of-freedom = 236640 Number of modes requested = 100 Eigenvalue tolerance = 1.00000E-06 Number of terms in skyline = 1,111,926,227 (over 8 Gigabytes of data) Average column height of skyline = 4699 Number of hypercolumns = 112 Rank of mass matrix = = 236640 Number of Lanczos vectors computed = 187 ************************************* * End of GTHC-LANCZOS Solution Data * ************************************* Time to compute 187 Lanczos vectors 70707.44 seconds Time to solve eigenproblem 143152.66 seconds

80. Dynamic Analysis (cont) Efficiency improvements are being implemented for response spectrum analysis, transient analysis, and harmonic analysis when the USE EXTERNAL FILE SOLVER command is used. These improvements include the ability to store and retrieve results data limited only by the amount of hard drive space available. In addition, improvements are also being made to the efficiency of the maximum value file search algorithm used for the LIST TRANSIENT MAXIMUM and CREATE PSEUDO STATIC LOAD FROM MAXIMUM commands.

81. Dynamics (cont) Sample output from a 100-mode RS analysis of that large model using the GTHCLANCZOS out-of-core eigenvalue solver is shown on the next slide.� The response spectrum analysis reflects the efficiency improvements to the external file solver.� The total virtual memory requirement was 1.5 Gbytes and the total length of the displacement and force results files are 3.6 Gbytes.

82. Dynamics (cont) { 15} > RESPONSE SPECTRUM LOAD 1 { 16} > SUPPORT ACCELERATIONS { 17} > TRANSL X 1.0 FILE 'S.7GD51' { 18} > END { 19} > RESPONSE SPECTRUM LOAD 2 { 20} > SUPPORT ACCELERATIONS { 21} > TRANSL Y 1.0 FILE 'S.7GD51' { 22} > END { 23} > RESPONSE SPECTRUM LOAD 3 { 24} > SUPPORT ACCELERATIONS { 25} > TRANSL Z 1.0 FILE 'S.7GD51' { 26} > END { 27} > { 28} > DAMPING RATIOS 0.05 100 { 29} > { 30} > DYNAMIC PARAMTERS { 31} > USE EXTERNAL FILE SOLVER { 32} > END { 33} > { 34} > PERFORM RESPONSE SPECTRUM ANALYSIS TIME TO COMPUTE RESPONSE SPECTRA RESULTS 0.89 SECONDS { 35} > COMPUTE RESPONSE SPECTRUM DISPL Time for response spectra computation 9.86 seconds { 36} > COMPUTE RESPONSE SPECTRUM FORCES Time for response spectra computation 280.97 seconds

83. Dynamic Analysis (cont) Response Spectra widening capablility Multi-support acceleration time history Change output format for Response Spectrum File Data � one column The List Response Spectrum Base and Story Shear capability will be brought to release status The Form Static, Form UBC97 Static, and Form IS1893 Static Load commands will be brought to release status.

84. Finite Elements Implement new eight node six degree of freedom curved shell element for thin and moderately thick shells � CQSHELL6 Surface, temperature, and body forces Lumped and Consistent Mass matrix for dynamic analysis Geometric stiffness for linear buckling analysis Standard finite element output � LIST, CALCULATE AVERAGE Integration into GTMenu (geometry, loads, input file, contour results)

85. Nonlinear Analysis Incremental nonlinear analysis to facilitate the use of nonlinear analysis to solve construction sequence problems Add models for multi circular spirals in rectangular columns for pushover analysis Add options for users to type in rebar coordinates or automatic equal spacing for pushover analysis

86. Nonlinear Dynamic Analysis Nonlinear Dynamic Analysis will be brought to release status. The nonlinear hysteretic spring element, NLS4PH, will be brought to release status. The viscous damper element for linear and nonlinear dynamics will be brought to release status

87. Offshore The efficiency of the PSD and DISCRETE fatigue analysis algorithm has been improved significantly by the implementation of a joint-by-joint analysis algorithm. A PSD fatigue analysis for 200 joints and 700 wave loads that once took days only to discover that 2 Gb of memory was insufficient to solve the problem can now be solved in approximately 15 minutes on a 3.0 GHz computer having 2 Gb RAM.

88. Reinforced Concrete / Finite Element Analysis of Slabs New command to check or design the reinforcement in a finite element model of a slab subjected to bending using ACI 318-02. User defines the section (cut ) in the slab by specifying two joints and an element in the plane of the cut User can specify the steel and/or spacing The new command and sample output are shown on the next few slides

89. Reinforced Concrete / Finite Element Analysis of Slabs (cont)

90. Reinforced Concrete / Finite Element Analysis of Slabs (cont) { 188} > design slab joints 6 50 element 5 :: FLAT PLATE SLAB DESIGN :: :: DESIGN ENVELOPE :: POSITIVE MOMENT = 1036799.95 lb-in NEGATIVE MOMENT = -691200.02 lb-in :: SLAB CROSS-SECTION :: Width (in) Depth (in) FCP (psi) FY (psi) Cover (in) _____________________________________________________________________________________________ 96.00 6.00 4000.00 60000.00 0.75 :: DESIGN RESULTS :: Face Bar# Spacing PHI-MN MU Status _____________________________________________________________________________________________ TOP 5 8.500 754495.9447 691200.0156 PASSES BOTTOM 5 5.500 1114752.1453 1036799.9531 PASSES

91. Reinforced Concrete / Finite Element Analysis of Slabs (cont) { 190} > design slab joints 6 50 element 5 top face bar 7 :: FLAT PLATE SLAB DESIGN :: :: DESIGN ENVELOPE :: POSITIVE MOMENT = 1036799.95 lb-in NEGATIVE MOMENT = -691200.02 lb-in :: SLAB CROSS-SECTION :: Width (in) Depth (in) FCP (psi) FY (psi) Cover (in) _____________________________________________________________________________________________ 96.00 6.00 4000.00 60000.00 0.75 :: DESIGN RESULTS :: Face Bar# Spacing PHI-MN MU Status _____________________________________________________________________________________________ TOP 7 12.000 906247.0695 691200.0156 PASSES BOTTOM 5 5.500 1114752.1453 1036799.9531 PASSES

92. Steel Design Torsion and Warping check or design for ASD9 and LRFD3 codes. Cross-sections considered for ASD9 code are: I shapes, Channels, Single Angles, and Structural Tubes Cross-sections considered for LRFD3 code are: I shapes, Channels, Single Angles, Pipes, and Structural Tubes Warping stress computations are based on Cases 1 and 2 of the Torsion Analysis of Rolled Steel Section by Bethlehem Steel or the AISC Torsional Analysis of Structural Steel Members, Steel Design Guide Series 9. The following boundary conditions will be implemented: FIX-FIX, FIX-PIN, PIN-FIX, PIN-PIN

93. Steel Design (cont) Modify the FORM load command to automatically update itself during analysis when self weight exists in the FORM load command. This is similar to Load Combination implementation. Add Solid Round, Rectangular, and Square Bars to LRFD3 code

94. Steel Design (cont) Add maximum moments and/or forces to the user specified sections for code check or design. User can specify from the maximum of FX, FY, FZ, MX, MY, MZ, or all of them. When user specifies maximum force or moment, the maximum locations are added to the list of sections that the user has already specified.

95. Steel Design (cont) Add an option to code check and design for a maximum envelope. This means first finding the maximum FX, FY, FZ, MX, MY, and MZ. These maximums are then assumed to act at a single location for the code check or design.

96. Steel Design (cont) Implement new Displacement Constraint Design Procedure to select members to satisfy joint displacement constraints. An example of some of the new parameters, commands and resulting output are shown on the next slides.

97. Steel Design (cont)

98. Steel Design (cont)

99. Steel Design (cont)

100. Steel Design (cont)

101. Scope Editor Automatic insertion of items from a template Date File name Title with a prompt for user input True paragraph data as opposed to current acceptance of multi-line input Library of symbols to use for copy and paste

102. Scope Editor (cont) Increased resolution Multi-page document Allow margin specification on import from GTMenu Implement �Undo� function

103. Antenna Tower Program Simplified modeling of tower and monopole geometry Simplified appurtenance input Automatic ice and wind load calculations Nonlinear analysis for guyed towers and monopoles

104. Antenna Tower Program (cont) Concise result reporting including twist, sway and displacement for antennas Code check by ASD9 along with TIA/EFA-222-F adjustments Investigating code check based on 222-G We need your input on this!

105. Antenna Tower Program (cont)

106. Antenna Tower Program (cont) Modeling Tower type: Monopole, 3- or 4-sided Tower height Base and top widths Additional inflection (slope change) points

107. Antenna Tower Program (cont)

108. Antenna Tower Program (cont) Results Base reactions Displacement of tower joints Twist, sway and displacement of antennas Member end forces Code check results Printed reports

109. Future Enhancements Graphically specify Area Loads in GTMenu Allow a 2-point line to be specified using "Start and End" mode, as for Member generation. Currently "End to End" mode is assumed. 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

110. Future Enhancements (cont) Multiple windows to allow for result display in a separate window than the model display Graphically specify joints and elements to be used with CALCULATE RESULTANT List the contents of a Group in an Inquire box. Currently the contents can only be displayed graphically

111. Future Enhancements (cont) Add the option to Split Members to interpolate eccentricities between the start and end of the split members 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

112. Future Enhancements (cont) ACI 318-2002 AISC LRFD 4th edition depending on release date

113. Future Enhancements (cont) Continue expanding the model data and results which are available in Datasheets. Use the new datasheets which allow printing and facilitate exporting to Excel.

114. Future Enhancements (cont) IBC 2000 equivalent static earthquake load 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 Graphically display plastic hinge status and other pushover information

115. Future Enhancements (cont) Generalizing nonlinear frame member model to support large finite rotation behavior Center of stiffness computation in dynamic analysis

116. Your assistance is needed to help us improve GTSTRUDL while you are here Please provide us with a prioritized list of the features that you would like to see. Please be specific especially when requesting model wizard, design codes (which codes and which cross sections) or datasheet requests. Sketches of wizards, output, and graphical displays help us tremendously.