Wall Studs?
Wall Studs?
(OP)
Ok guys,
If you are designing a wall stud as a beam-column and you have a two layers of wood sheathing on each side, is the stud braced for both compression and bending?
What about if you have wood sheathing on one side and gypsum on another? What about gypsum on both sides?
Intuitively, I think we can all see that these studs would not be completely unbraced and the sheathing would offer some resistance to buckling, but it might be hasty assume full bracing. Is there a legal document or code that quantifies this?
If you are designing a wall stud as a beam-column and you have a two layers of wood sheathing on each side, is the stud braced for both compression and bending?
What about if you have wood sheathing on one side and gypsum on another? What about gypsum on both sides?
Intuitively, I think we can all see that these studs would not be completely unbraced and the sheathing would offer some resistance to buckling, but it might be hasty assume full bracing. Is there a legal document or code that quantifies this?






RE: Wall Studs?
Remember, the studs will still be unbraced in the strong direction.
DaveAtkins
RE: Wall Studs?
For gypsum I would only take the studs as braced at each bridging.
RE: Wall Studs?
So for axial load KyL and KtL would be 4'0" c/c or the spacing of the bridging, and the full L for Kx.
For Bending it would be continuously braced. So you could use FySe for the allowable moment.
If you dont count on the sheathing to brace the compression flange for bending you will have trouble getting studs to work for typical wall heights.
RE: Wall Studs?
RE: Wall Studs?
RE: Wall Studs?
I was referring to WOOD studs.
RE: Wall Studs?
Mike McCann
MMC Engineering
RE: Wall Studs?
But I have designed with wood studs a lot as well, and I basically agree with Mike. However, I seem to remember something (maybe in a previous Code) about wood studs being braced even if sheathed on just one side. I know my garage doesn't have sheathing on the inside...
DaveAtkins
RE: Wall Studs?
Don Phillips
http://worthingtonengineering.com
RE: Wall Studs?
RE: Wall Studs?
Mike McCann
MMC Engineering
RE: Wall Studs?
Don Phillips
http://worthingtonengineering.com