IBC shear wall table used for a diahragm?
IBC shear wall table used for a diahragm?
(OP)
Table 2211.1(1) in the IBC 2000 shows values for shear in plf for wood sheathing attached to metal studs in shearwalls.
My question is - would this work for horizontal roof diaphragms? I know that the IBC (and UBC) provides separate tables for wood stud/wood sheathing shearwalls verses horizontal diaphragms ... but isn't the principle the same in terms of raw shear in a framed panel?
My question is - would this work for horizontal roof diaphragms? I know that the IBC (and UBC) provides separate tables for wood stud/wood sheathing shearwalls verses horizontal diaphragms ... but isn't the principle the same in terms of raw shear in a framed panel?






RE: IBC shear wall table used for a diahragm?
You are making me wonder about this. One obvious fact is that we use blocking in the roof which gives differing shear values. I don’t have my code with me, but I do not recall that the wall tables have provisions for blocking? Do they?
RE: IBC shear wall table used for a diahragm?
RE: IBC shear wall table used for a diahragm?
It looks like comparing the diaphragm to shearwall tables in chapter 23 gives close values for the blocked diaphragm case.
But in general the diaphragm table lists a little less allowable for 2" support members and a little greater value for 3" support members compared to the shearwall table values that are based mostly on 2" minimum support members.