Internal Cross-frame X [STG]
- Umut Nuhat Sevinc
- Melis Ceylan
- Omer Faruk Ozkan
Location
Girder: Specify the girder for which the crossframe will be generated.
Skew Angle: A positive skew value rotates the cross frame in a clockwise direction, while a negative skew value rotates it in a counterclockwise direction. It is important to remember that the cross frames are positioned at the specified station along a line perpendicular to the PGL, which is then rotated according to the entered skew value.
Station[Start/End]: The station of the cross-frame with respect to the PGL can be defined using this parameter, either by selecting the Start/End options or through manual input.
Sections
Top Chord Section: Assign a section for the top chord, which can be imported from the AISC database by the users. The finite element representation is in the form of a truss.
Diagonal Chord Section : Assign a section for the diagonal chord, which can be imported from the AISC database by the users. The finite element representation is in the form of a truss.
Chord Geometry
The geometry of Internal Crossframe X can be arranged using the Chord Geometry parameters. For a visual representation of each, refer to the figure below.
Top Chord - Vertical Offset from Top of Web: This parameter can be used to define the offset value of the top chord with respect to the top of the web.
Top Chord - Horizontal Offset from Center of Web: This parameter can be used to define the horizontal offset value of the top chord with respect to the center of the web.
Diagonal Chord - Vertical Offset from Top of Web: This parameter can be used to define the vertical offset value for the diagonal chord with respect to the top of the web.
Diagonal Chord - Vertical Offset from Bottom of Web: This parameter can be used to define the vertical offset value for the diagonal chord with respect to the bottom of the web.
Diagonal Chord - TopSide Inner Offset: This parameter can be used to define the inner offset of the diagonal chord on the topside.
Diagonal Chord - BottomSide Inner Offset: This parameter can be used to define the inner offset of the diagonal chord on the bottom side.
Diagonal Chord - Horizontal Offset from Top of Web: This parameter can be used to define the horizontal offset of the diagonal chord from the top of the web.
Diagonal Chord - Horizontal Offset from Bottom of Web: This parameter can be used to define the horizontal offset of the diagonal chord from the bottom of the web.
Top Chord - Orientation Angle: This parameter can be used to define the orientation angle of the top chord.
Left Diagonal Chord - Orientation Angle: This parameter can be used to define the orientation angle of the left diagonal chord.
Right Diagonal Chord - Orientation Angle: This parameter can be used to define the orientation angle of the right diagonal chord.
Gusset Plate
The parameters listed below are exclusively used for 3D representation. "Gusset Plate" objects defined under the Properties tab can be assigned here. The gusset plates assigned in this section do not have FEM attributes but can be applied as weight loads if relevant definitions are made under the Construction section of the workflow, particularly in Girder/Crossframe Construction using the Stiffener Gusset Plate Load parameter.
Top Gusset Plate: Assign a previously defined gusset plate to the topside.
Bottom Gusset Plate: Assign a previously defined gusset plate to the bottom side.
Center Gusset Plate: Assign a previously defined gusset plate to the center plate.
Vertical Offset from Top of Web (Center Plate): This parameter can be used to define the offset value from the top of the web to the center gusset plate, establishing its position along the Z-axis.
Vertical Offset from Top of Web (Top Plate) (along web): This parameter can be used to define the offset value from the top of the web to the top gusset plate, establishing its position along the Z-axis.
Horizontal Distance Between Web Edge and Plate Edge: This parameter can be used to position gusset plates along the horizontal (transverse) direction.
Stiffener
The parameters listed below are exclusively used for 3D representation. The stiffeners modeled here do not have FEM attributes but can be applied as weight loads if relevant definitions are made under the Construction section of the workflow, particularly in Girder/Crossframe Construction using the Stiffener Gusset Plate Load parameter.Refer to the figure below for a visual representation of each parameter.
Stiffener Used [YES/NO]: This parameter determines whether further stiffener-related parameters are applicable. Selecting "NO" will make the parameters below display as "Not Applicable (N/A)." Selecting "YES" allows further definitions related to crossframe stiffeners.
Vertical Stiffener Thickness: This parameter can be used to adjust the thickness of the stiffeners in the longitudinal direction.
Vertical Stiffener Width: This parameter allows you to adjust the width of the vertical stiffeners.
Vertical Distance from Top of Web: This parameter can be used to define an offset value for the stiffeners from the top of the web.
Vertical Distance from Bottom of Web: This parameter can be used to define an offset value for the stiffeners from the bottom of the web.
Top-Inner Chamfer: This parameter defines the chamfer value for the inner section of the stiffeners' top side.
Top-Outer Chamfer: This parameter defines the chamfer value for the outer section of the stiffeners' top side.
Bottom-Inner Chamfer: This parameter defines the chamfer value for the inner section of the stiffeners' bottom side.
Bottom-Outer Chamfer: This parameter defines the chamfer value for the outer section of the stiffeners' bottom side.
Material: This parameter allows a material to be assigned to the stiffener. Materials can either be imported or selected from previously defined materials under Properties - Materials.
FEA
Top Chord Axial Rigidity Coefficient: This parameter can be used to define the axial rigidity of the top chord.
Diagonal Chord Axial Rigidity Coefficient: This parameter can be used to define the axial rigidity of the diagonal chord.