Function
- Use this function to enter the spacings and size of transversal/longitudinal stiffeners for box sections (refer to Note 1).
Call
From the Main Menu select [Design] tab > [Type : Steel Design] > [Design Input Data] group > [Design Parameters] > [Longitudinal Stiffener of Box Section]
Input
First, select the members in the model and enter the following:
Option
Select Add/Replace or Delete.
Add/Replace : Add the newly entered values or replace the previously entered values.
Delete : Delete the entered values. Data entry is not required when deleting.
Property No
Section property number for the box member for which the strength is be verified.
The ... Button : Use this button to modify the sectional shape and dimensions of the member. Display the Section for Design dialog box. Refer to "Section for Design..." for the descriptions.
Box Section
Display the section data of the box member.
H : Height of the steel section.
B : Width of the steel section.
tw : Thickness of the web.
tf1 : Thickness of the first flange.
Cw : Distance between the centers of the composing webs (B-tw).
tf2 : Thickness of the second flange
Longitudinal Stiffeners
Enter the data for the longitudinal stiffeners
Width(Bstf) : Width of the stiffener
Thickness(Tstf) : Thickness of the stiffener
Transverse Stiffeners
Enter the data for the transverse stiffeners.
Spacing(Astf) : Spacing of the transverse stiffeners
Box Section
Enter the number of panels separated by the longitudinal stiffeners.
Flange Side(Noy): Number of panels on the flange side separated by the longitudinal stiffeners
Web Side(Noz): Number of panels on the web side separated by the longitudinal stiffeners
The Apply Button : Apply the entered values to the selected members.
The Close Button : Close the entry Dialog Bar.
Note 1
Apply only when the design code is KSCE-ASD96 (Allowable Stress Design of the Specifications for Roadway Bridges - Steel Bridges of the Korean Society of Civil Engineers).
Note 2
When the longitudinal/transversal stiffener data are repeatedly entered for the same members, the values will be updated to the last values entered.
Note 3
The entered data for the longitudinal stiffeners can be reviewed in the data table arranged in the order of section property numbers. The user may Modify/Add and Delete items in the data table.
Access the data table following the procedure noted below.
From the Main Menu select Design > Steel Design Parameter > Steel Design Tables > Longitudinal Stiffener of Box Section.
From the Tables tab of the Tree Menu select Design Tables > Steel Design Table > Longitudinal Stiffener of Box Section.