Post on 31-Dec-2015
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The GTSTRUDL Base Plate WizardThe GTSTRUDL
Base Plate Wizard
A Module for the Modeling and Analysis of Base Plates
A Module for the Modeling and Analysis of Base Plates
Rob AbernathyCASE Center GTSUG June, 2008 Las Vegas, NV
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What is the Base Plate Wizard?What is the Base Plate Wizard?
• Create a Finite Element model of the base plate using SBHQ6 and SBHT6 elements.
• Model attachments, anchors, stiffeners and bearing surface.
• Adjust the model with constraints and cutouts.
• Add loadings by input, DBX files or user-created files.
• Create a Finite Element model of the base plate using SBHQ6 and SBHT6 elements.
• Model attachments, anchors, stiffeners and bearing surface.
• Adjust the model with constraints and cutouts.
• Add loadings by input, DBX files or user-created files.
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What is the Base Plate Wizard?What is the Base Plate Wizard?
• Print or Print Preview• Save the base plate model in .gtbp
format• Create a GTSTRUDL input file• Run the input file from the dialog,
review the model and results in GTMenu.
• Review results in the Wizard with data sheets
• Print or Print Preview• Save the base plate model in .gtbp
format• Create a GTSTRUDL input file• Run the input file from the dialog,
review the model and results in GTMenu.
• Review results in the Wizard with data sheets
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Running the Base Plate WizardRunning the Base Plate Wizard
• Will be available in GTSTRUDL 30
• Graphical GUI
• Separate DLL
• Separate password
• ‘gtbp’ format files for model recovery and templates
• Will be available in GTSTRUDL 30
• Graphical GUI
• Separate DLL
• Separate password
• ‘gtbp’ format files for model recovery and templates
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Wizard OrganizationWizard Organization
Menu bar
10 tabbed pages +
Additional dialogs
Display area
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Tabs: PlateTabs: Plate
• Length units
• Overall dimensions
• Plate material properties
• Length units
• Overall dimensions
• Plate material properties
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Tabs: FE MeshTabs: FE Mesh
• Basic mesh size
• Mesh adjustments
• Basic mesh size
• Mesh adjustments
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Tabs: AttachmentsTabs: Attachments
• Add attachments
• Edit attachments: double-click a column
• Delete attachments: right-click a column
• ‘Mirrored’ option for angles
• Add attachments
• Edit attachments: double-click a column
• Delete attachments: right-click a column
• ‘Mirrored’ option for angles
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Tabs: Attachments – Add AttachmentTabs: Attachments – Add Attachment
• Select Table and Profile
• Optional offset
• Optional rotation in plane
• Modeling method
• ‘Edit Attachment’ uses same dialog
• Select Table and Profile
• Optional offset
• Optional rotation in plane
• Modeling method
• ‘Edit Attachment’ uses same dialog
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Tab: Attachments – Supported ProfilesTab: Attachments – Supported Profiles
• Drop-down Table and Profile menus are user controllable – add or remove
• Standard shapes are Wide Flanges, Tubes, Channels, Tees, Angles, and Pipes
• All AISC hot rolled standard shapes are supplied
• Users can add their own standard shapes or “arbitrary” shapes – a collection of lines to represent built up shapes, etc.
• Drop-down Table and Profile menus are user controllable – add or remove
• Standard shapes are Wide Flanges, Tubes, Channels, Tees, Angles, and Pipes
• All AISC hot rolled standard shapes are supplied
• Users can add their own standard shapes or “arbitrary” shapes – a collection of lines to represent built up shapes, etc.
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Tabs: AnchorsTabs: Anchors
• ‘Add Anchors’ to add anchors to the base plate.
• Select existing anchors to edit or delete
• Use ‘Edit Anchors’ to review full anchor data
• ‘Add Anchors’ to add anchors to the base plate.
• Select existing anchors to edit or delete
• Use ‘Edit Anchors’ to review full anchor data
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Tabs: Anchors – Add AnchorsTabs: Anchors – Add Anchors
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Tabs: Anchors - LocationTabs: Anchors - Location
• Type in coordinates of anchors or use the Anchor Patterns button for automatic location calculation.
• Type in coordinates of anchors or use the Anchor Patterns button for automatic location calculation.
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Tabs: Anchors – Anchor PatternsTabs: Anchors – Anchor Patterns
• Choose a pattern
• Enter offsets from plate edge
• Enter the number of any anchors in between the corners
• Choose a pattern
• Enter offsets from plate edge
• Enter the number of any anchors in between the corners
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Tabs: Anchors – Physical PropertiesTabs: Anchors – Physical Properties
• Physical Properties are not required for anchors specified with spring values.
• The ‘Coupler’ option allows for two diameters for frame-type members
• ‘By reference’ will allow you to select from a table of anchor properties. This table is user generated.
• Physical Properties are not required for anchors specified with spring values.
• The ‘Coupler’ option allows for two diameters for frame-type members
• ‘By reference’ will allow you to select from a table of anchor properties. This table is user generated.
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Tabs: Anchors – Axial StiffnessTabs: Anchors – Axial Stiffness
• Anchor can be modeled as spring value or a frame member
• Tension only option
• Pretension is available for springs
• Anchor can be modeled as spring value or a frame member
• Tension only option
• Pretension is available for springs
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Tabs: Anchors – Shear StiffnessTabs: Anchors – Shear Stiffness
• ‘Fixed’ restrains in plane translation – no effect on out-of-plane displacement.
• ‘None’ means no resistance to in plane translations.
• ‘Fixed’ restrains in plane translation – no effect on out-of-plane displacement.
• ‘None’ means no resistance to in plane translations.
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Tabs: Anchors – Allowable ValuesTabs: Anchors – Allowable Values
• Specified allowable values allow the BPW to check results for anchors
• Specified allowable values allow the BPW to check results for anchors
esallowact
eaallowact )/S(S)/TTRatio (
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Tabs: Bearing SurfaceTabs: Bearing Surface
• Choose spring constant type: 1st two use theory of elasticity formula.
• Optional gap between the base plate and the bearing surface.
• Choose spring constant type: 1st two use theory of elasticity formula.
• Optional gap between the base plate and the bearing surface.
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Tabs: StiffenersTabs: Stiffeners
• No prototype available
• Stiffeners are modeled as a single line
• May be modeled as RIGID or FE extension
• If extension, may have variable height
• May be connected to an attachment.
• No prototype available
• Stiffeners are modeled as a single line
• May be modeled as RIGID or FE extension
• If extension, may have variable height
• May be connected to an attachment.
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Tab: ConstraintsTab: Constraints
• Prototype still under development.
• Constraints force nodes to lie on a line or a point with optional supports.
• Add, (edit and delete) constraints.
• Prototype still under development.
• Constraints force nodes to lie on a line or a point with optional supports.
• Add, (edit and delete) constraints.
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Tab: Constraints – Add ConstraintTab: Constraints – Add Constraint
• Point or line
• Optional boundary conditions
• Can be used to facilitate modeling issues outside of Base Plate Wizard.
• Point or line
• Optional boundary conditions
• Can be used to facilitate modeling issues outside of Base Plate Wizard.
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Tabs: Constraint – Edit RestraintsTabs: Constraint – Edit Restraints
• Select free or restraint type.
• Fixed + or – modeled with TEN/COMP ONLY members with high axial strength.
• Select free or restraint type.
• Fixed + or – modeled with TEN/COMP ONLY members with high axial strength.
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Tabs: CutoutsTabs: Cutouts
• Prototype still under development.• A cutout is a closed polygon that is
excluded from the FE model.• Cutouts can be used to model skewed
plates.
• Prototype still under development.• A cutout is a closed polygon that is
excluded from the FE model.• Cutouts can be used to model skewed
plates.
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Tabs: NL SpringsTabs: NL Springs
• Can be pre-loaded like profiles
• Enter name (GTS curve name)
• Optional description
• Can be assigned to anchors or constraints.
• Can be pre-loaded like profiles
• Enter name (GTS curve name)
• Optional description
• Can be assigned to anchors or constraints.
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Tabs: LoadingsTabs: Loadings
• Prototype still under development
• Type in data or read from files – DBX (member forces or reactions) or .gtpb-style files you create.
• Prototype still under development
• Type in data or read from files – DBX (member forces or reactions) or .gtpb-style files you create.
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DisplayDisplay
• Plate origin is red square in lower, left
• Y axis is vertical, X is horizontal, Z comes out of the screen.
• Scales on left and bottom
• Current element and joint count at top
• Plate origin is red square in lower, left
• Y axis is vertical, X is horizontal, Z comes out of the screen.
• Scales on left and bottom
• Current element and joint count at top
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DisplayDisplay
• Attachment centroid is marked with a small cross in attachment color. This is the point where loads are applied to an attachment.
• Anchor center is marked with small square – if a diameter is specified, a circle is drawn in anchor color.
• Stiffeners are drawn as a line in the stiffener color.
• Constraints are drawn as a line with each joint in the constraint marked with a small box in the constraint color.
• Cutouts are outlined in the cutout color and no elements are displayed inside the cutout.
• Attachment centroid is marked with a small cross in attachment color. This is the point where loads are applied to an attachment.
• Anchor center is marked with small square – if a diameter is specified, a circle is drawn in anchor color.
• Stiffeners are drawn as a line in the stiffener color.
• Constraints are drawn as a line with each joint in the constraint marked with a small box in the constraint color.
• Cutouts are outlined in the cutout color and no elements are displayed inside the cutout.
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Menu: FileMenu: File
• Create a GTSTRUDL input file based on the current state
• Read an existing .gtbp file• Create a .gtbp file• Print the current display• Launch the Scope Editor with the current
display
• Create a GTSTRUDL input file based on the current state
• Read an existing .gtbp file• Create a .gtbp file• Print the current display• Launch the Scope Editor with the current
display
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Menu: ResultsMenu: Results
• If analysis and results are requested in the input file, results can be reviewed in the BPW
• Data sheet style format• ‘Bearing surface’ uses the new LIST
PRESSURE command output
• If analysis and results are requested in the input file, results can be reviewed in the BPW
• Data sheet style format• ‘Bearing surface’ uses the new LIST
PRESSURE command output
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Current Wizard limitsCurrent Wizard limits
• 10 Attachments• 100 lines for each attachment• 1000 Anchors• 50 constraints• 1 line per constraint• 10 cutouts• 10 lines per cutout• 21 points in NLS curve• 1 bearing surface K value
• 10 Attachments• 100 lines for each attachment• 1000 Anchors• 50 constraints• 1 line per constraint• 10 cutouts• 10 lines per cutout• 21 points in NLS curve• 1 bearing surface K value