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[SEAOC] Re: [SEAOC] Re: [SEAOC] Re: [SEAOC] Re: [SEAOC] plywood shear panel nailing[Subject Prev][Subject Next][Thread Prev][Thread Next]
- To: seaoc(--nospam--at)power.net
- Subject: [SEAOC] Re: [SEAOC] Re: [SEAOC] Re: [SEAOC] Re: [SEAOC] plywood shear panel nailing
- From: Wish <wish(--nospam--at)cyberg8t.com>
- Date: Thu, 30 May 1996 00:26:10 -0700
Jeff Smith wrote: > > In the 1995 SEAOC Proceedings, 64th Annual Convention there is a article > Laboratory Testing To Investigate Pneumatically Driven Box Nails.......... > The box head nails actually tested better than commons for 3/8" plywood. > The head size has a significant effect on performance. I do not recall if > the nails were coated, but I don't think they were. Overdriven box head > nails performed better than commons as well. > > Jeff Smith, S.E. > > >RLFOLEY(--nospam--at)aol.com wrote: > >> > >> The only diffference I am aware of is the issue of overdriven nails damaging > >> the outer ply when machine nailing. APA has a bulletin that covers > >> overdriven nails. > >> > >> The subcontractor should use a nail gun with a governor on it to minimize > >> overdiving > >> > >> RLFOLEY(--nospam--at)AOL.COM > >> Structural Engineer > > > >As far as I know, SEAOSC has done studies for the difference in shear > >walls nailed with sinkers verses common nails. L.A. City has called for > >a degradation of 15% off the rated shear where sinkers are used in lieu > >of common nails. > >I know that there is still some controversy over this issue. > >I also agree with Ray that the major problem with power driven nails is > >the damage to the ply layers. The advantages that I read about power > >driven nails is the advantage of the hot glue that creates a better bond > >with the wood for resistance to nail withdrawl. > > > >Dennis Wish PE > > > >... > Regards, > > Jeff Smith. S.E. > phone: (415) 543-8651 > fax: (415) 543-8679 > email: smthengr(--nospam--at)sirius.com > > Smith Engineering > 27 South Park > San Francisco, CA 94107 I read this too. Unfortunatly, until it is adopted by a municpality or voted into code, I can't give it much credibility. LA City must have had testing to backup their revision to the code for a 15% shear reduction. I'll check it out Dennis Wish PE ...
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