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Re: WOOD - Load bearing studs in a party wall

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So, are you saying that I should specify blocking/bridging, etc. at
such a spacing as to make the l/d in the weak axis the same as the
l/d in the strong axis? This is making sense.

Bill Allen
-----Original Message-----
From: Dennis S. Wish PE <wish(--nospam--at)>
To: 'seaoc(--nospam--at)' <seaoc(--nospam--at)>
Date: Wednesday, October 22, 1997 7:44 PM
Subject: RE: WOOD - Load bearing studs in a party wall

>-----Original Message-----
>From: Bill Allen [SMTP:BAllenSE(--nospam--at)]
>Sent: Wednesday, October 22, 1997 6:19 PM
>To: seaoc(--nospam--at)
>Subject: Re: WOOD - Load bearing studs in a party wall
>Well, that's WAY too conservative. The plate height is 8'-1" 
>yielding a l/d
>ratio of
>64.8. I also won't get many "brownie points" by telling my 
>client he can't
>have his
>party wall. Yes, the reason for the staggered studs is for 
>sound. Even
>though the
>resilient channels yields a satisfactory STC rating, it really 
>isn't that
>great. The client
>wants better performance. Need to do better.
>Thanks anyway,
>Bill Allen
>Typically, the studs are braced in the weak direction with stud 
>bridging (consider conventional construction) that is generally 
>used as a fire-break as well as blocking to control H/t. Section 
>2326.11.8 of the 94 UBC requires bridging in stud walls were the 
>height-to-least-width ratio exceeds 50, which is in most cases. 
>I have yet to see a wall (other than cripple walls) which are 
>not bridged at least mid-span of the stud.
>Considering this, I would think that your wall would be just 
>fine unless you are stacking enough loads to cause the studs to 
>buckle out-of-plane (in the studs strong axis).