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Re: Re: 3x4 Shear Wall Studs

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I believe that APA publishes testing on plywood box beams that utilize 2x4 flat studs in the core.  I would think one could glean some idea of the efficacy of a 2x3 shear wall from some of that testing.  Whether or not that could convince a B.O. is another matter.

That said, I'd agree about the worry about OTM detailing unless you've got some good DL restraint.


    O.K. Setting aside the problem of tiedowns (potentially a major problemdepending on the demand). The main source of deflection is at the edgenailing & I think there are a couple of  computer models that couldallow you to consider other edge members--if you had test data for theload/deflection curve of  your proposed EN connections.  Of course thenyou'd have the problem of convincing a CBO that your system was capableof meeting the code's loading requirements.
Your best bet is as you suggested--try to find some actual test datafor full sized walls under cycled loading that used smaller framingmembers.  Good luck.
Chuck Utzman, PE

Barry Welliver wrote:
Actually,I?m trying tohelp build something beautiful.   
Codeshear wall values have abasis in testing and I?m looking to consider some of the parameterswhichhelp establish these values.  
BarryH. Welliver  

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