in UBC97 code there is a different values according to the type of structure .. in both ft and m units ... in Etabs it is like this Ct(ft) ______ so my question is , do Etabs need to input it in ft units or it depends on the unit system we use ??
another question please ,
the beam is rotated as you told me , but I can't recognize which leg is drawn in the horizontal and which in vertical direction, is there away to now them exactly ?
and what is the mirror in "Frame section property data " do ? it doesn't affect any thing in the extruded view ?!
thanks a lot ,
but what about the check box "Do not transform frame stiffness for offsets from centroid" ,in the "Frame Assignment - Insertion Point" form ??