I'm Moment Frame Happy!
I'm Moment Frame Happy!
(OP)
I have a unique situation where I have a 1 story steel framed building with bar joists and metal deck roof. The building is appox. 70'x180'. The problem lies in the fact that the building elevation including the metal deck steps up 2'-0" at 3rd points along the 180' dimension. So that basically means I need a braced or moment frame at those locations. So for lateral resistance to wind loads perp. to the 180' dimension of the building I will need frames at the outer walls and a frame at each of the jogs in the roof diaphragm (total of 4 frames). Do I have any other ways around this? Seems like alot of frames for a building 180' wide. Thanks






RE: I'm Moment Frame Happy!
RE: I'm Moment Frame Happy!
RE: I'm Moment Frame Happy!
Just throwing out ideas, though this may be no better than moment frames.
RE: I'm Moment Frame Happy!
RE: I'm Moment Frame Happy!
RE: I'm Moment Frame Happy!
But if your lowest chord can be developed all the way through, and you transfer down to a perimeter chord of beams at the high end, maybe that could work.
RE: I'm Moment Frame Happy!
RE: I'm Moment Frame Happy!
This sort of feels like a case where I'd be tempted to model the whole thing in RISA 3D or similar program to get the full results of the various load paths, stiffnesses, etc.
RE: I'm Moment Frame Happy!