Purpose: Used to set ratio of horizontal truss struts to internal cross frames in box girders.
--> Given in girder input
Specifies the ratio of struts in an internal horizontal truss to the internal cross frames. Default is 2, in which case every other horizontal truss strut is not in the same location as an internal cross frame. Given as an array of ratios, one value for each internal bracing location. If only one value is given that value will be used for all internal brace locations. (Also see ADTRUSS , ASTRUSS )