Roof framing is 4 foot wide double tees, stems at 2'-0 with 1' cantilever flanges. stem thickness only 2" at bottom with slight taper upward. Building is in Atlanta GA built in 1967. Tee depth is 12" overall with 1 1/2" top flange no topping. Span is 40'. Any ideas on allowable loads?
I think using the 700 square foot area limit to define a main wind force system element is valid and also seems to carry on the tradition of other codes and previous versions. However, the 2000 IBC does not specifically state this limit so there is the possibility that you could get in trouble...
