Allowable load on wood studs
Allowable load on wood studs
(OP)
Can we design a wood stud wall for axial stress/allowable + stress due to lateral load (wind)/allowable bending = <1 where allowable axial load = O.30E/(l/d)^2. d=least dimension of the stud and l = stud length. And Stud assuumed pin connnected. What adjustment would we make to 0.30E/l/d^2 to install solid blocking at mid height? (or oftener)ignoring the sheeting inside and out. Or allow for sheeting outside and/or inside. Thinking of wall heights 14ft to 18 ft.studs spaced 12" or 16" OC.






RE: Allowable load on wood studs
I would make no change to the equation for adding any blocking midheight.
Hopefully, considering lateral deflections and possibly a gyp finish on the wall, you can use 2X8's or 2X10's for those unsupported lengths.
Mike McCann
MMC Engineering
Motto: KISS
Motivation: Don't ask
RE: Allowable load on wood studs
I thought the whole idea to install solid blocking (nogging or noggin' as I like to call it) at 4.5' crs was to reduce the unsupported length for bending and compression?
RE: Allowable load on wood studs
Dik
RE: Allowable load on wood studs
If you have wood or gypsum sheathing on both faces of the wall, the studs are braced. There is no need for blocking in the wall (unless blocking is needed for some other reason--shear wall, for example).
DaveAtkins
RE: Allowable load on wood studs
Last time I checked it was about $150 US. An investment that has paid for itself at least a thousand times over.
RE: Allowable load on wood studs
RE: Allowable load on wood studs
RE: Allowable load on wood studs