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Wood Frame Shearwalls

Wood Frame Shearwalls

Wood Frame Shearwalls

(OP)
I am looking for values and design considerations for un-bloked wood shearwalls.

RE: Wood Frame Shearwalls

Technically, there is no such thing.  A shear wall, by definition, must be blocked.  You will not find tables for unblocked shear walls, as far as I know.

However, I have an article that discusses some research on this very topic.  It says that you can take the value for a blocked shear wall, with fasteners spaced 4" oc, and divide by 2 to get the value for an unblocked shear wall with fasteners spaced 6" oc.  This assumes studs are spaced 16" oc.

DaveAtkins

RE: Wood Frame Shearwalls

RE: Wood Frame Shearwalls

It's funny because they do provide values for unblocked shear walls made with gypsum board in the IBC.  

I wish IBC shearwall design was more consistent between metal studs, plywood shearwalls, and gypsum.

RE: Wood Frame Shearwalls

Might be that the loads for wallboard are considerably lower... dunno.  

Dik

RE: Wood Frame Shearwalls

If the loads are low why can't tou use the unblocked diapham values for vertical walls?

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