Purpose: Used to calculate forces in horizontal truss bracing of box girders..
--> Given in girder input
The cross section area (in2 or mm2) of struts in horizontal truss bracing used to calculate forces in the struts. This parameter is not to be confused with AHTRUSS which is used solely for the amount of material that is contributed towards section properties of the box cross section. See also ADTRUSS , SCRATIO.