Function
- Enter section properties for line elements (Truss, Tension-only, Compression-only, Cable, Gap, Hook, Beam Element).
- In the Steel Girder tab, enter the section property data for steel girder with longitudinal stiffeners. Stiffeners can be defined in Steel Girder I and Steel Girder Box Girder Section.
Call
From the main menu, select [Properties] tab > [Section Properties] group > [Section Properties] > [Steel Girder]
Input
Section Type
Assign a section type.
Size
Symmetric Section Auto Calculation: Check on the option to generate symmetrical section in the element’s local z-axis.
Distance from Reference Line: Specify the value to define unsymmetrical section as shown in the figures below. This field will be inactivated when “Symmetric Section Auto Calculation” option is toggled on.
Top: Distance from the left side of the top flange to the reference line
Bottom: Distance from the left side of the bottom flange to the reference line
B1: Top flange left overhang from the center of web
B2: Width of top flange (distance between web centers in Box type)
B3: Top flange right overhang from the center of web
B4: Bottom flange left overhang from the center of web
B5: Width of bottom flange (distance between web centers in Box type)
B6: Bottom flange right overhang from the center of web
H: Height of web excluding flanges
t1: Thickness of top flange
t2: Thickness of bottom flange
tw1: Thickness of left web
tw2: Thickness of right web
B1: Top flange left overhang from the center of web
B2: Top flange right overhang from the center of web
B3: Bottom flange left overhang from the center of web
B4: Bottom flange right overhang from the center of web
H: Height of web excluding flanges
t1: Thickness of top flange
t2: Thickness of bottom flange
Stiffener: define the longitudinal stiffener for Steel Box / Steel I section.
Define Stiffeners: Enter the dimensions of the stiffener as per the image shown below.
Deck & Stiffeners: Enter the position of stiffeners.
Deck Position: Select the position where the stiffener will be positioned among the left/right of the web and top/bottom flange.
Deck Part: Select the flange part where the stiffener will be positioned among flange left/right overhang and flange between web centers
Ref. Point Position: Reference position to determine stiffener position
Stiffener Number: Number of stiffener on the specified deck position and part
C: Check on the option to consider the longitudinal stiffener for the section property calculations. If the box is unchecked, the stiffeners are considered only for design and not for the section property calculation.
Spacing: Distance from the reference point position to enter the stiffener
Stiffener: Select the defined stiffener type from the combo-box. Stiffener can be defined by clicking [Define Stiffener…] button above.
Stiffener Pos.: Stiffener position. Following positions can be selected by Deck Position: For Top Flange, select “Bottom”. For Bottom Flange, select “Top”. For Web, select “Left”, “Right” or “Both”.
Stiffener Names: Enter the stiffener name to be entered in the list.
Add: Add a new longitudinal stiffener.
Modify: Modify an existing longitudinal stiffener.
Delete: Delete the selected longitudinal stiffener from the list.