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[SEAOC] Re: [SEAOC] plywood shear wall sill bolts

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I concur with your thinking that the plate washers do not adress the loose
holddown problem.  The plate washer may indeed hold down the sill and avoid a
cross grain bending problem, but the vertical movement of the shear wall may
then cause a pull out failure of the plywood nails.  Allowing the sill to
raise up and rock doesn't seem like a good idea due to the excessive drift
this may allow.  What's wrong with plain old tightening the holddowns very
tight prior to closing up the walls to account for future wood shrinkage?
Norm Brudigam, CE