Sunday, February 3, 2008

Re: Use 8d nails or 10d nails for Structural Panel Shear Walls

Gerard Madden, SE wrote:
> FWIW,
>
> I've been using 8d nails for shearwalls...10d for diaphragms.
>
> -gm
>
> On Feb 2, 2008 11:53 PM, Szuchuan Chang <szuchuan@gmail.com
> <mailto:szuchuan@gmail.com>> wrote:
>
> I am re-tooling to 2007 CBC wood design. Many items need to be
> updated.
>
> Many years ago, I was told to stay with 8d and 16d nails (common) as
> much as possible. In Doug Thompson's design example 1A, page 19, in
> the SDM Vol 2, he uses 10d nails on 4" o.c. with 510 plf allowable
> shear. It looks to me that he has been using 10d nails since the 1997
> UBC examples. I must be very out of date!
>
> If Simpson Strong-tie's SSN10 nails (shorter than the real 10d) are
> used in these applications, the 10d nails make sense. It would be
> easier to drive into the studs.
>
> My question is: "Are most of the plywood shear walls are specified
> with 10d nails these days in your office standards?"
>
> Thanks
>
> Sam Chang
>
> PS: Seems like a lot information on staples. Are they more commonly
> used over the nails in the state of California now?
>
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> --
> -gm
For new construction 10d shorts, renovation 8d
Chuck Utzman, P.E.

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