Alternatively, you can now design the sheathing to resist combined uplift and shear per section 4.4 of the 2008 Wind/Seismic Standard:
http://www.awc.org/Standards/SDPWS.html
HTH
Buddy
John "Buddy" Showalter, P.E.
Director, Technical Media
American Wood Council
Engineered and Traditional Wood Products
1111 19th Street, NW, Suite 800
Washington, DC 20036
202-463-2769
www.awc.org
The American Wood Council (AWC) is the wood products division of the American Forest & Paper Association (AF&PA). AWC develops internationally recognized standards for wood design and construction. Its efforts with building codes and standards, engineering and research, and technology transfer ensure proper application for engineered and traditional wood products.
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The guidance provided herein is not a formal interpretation of any AF&PA standard. Interpretations of AF&PA standards are only available through a formal process outlined in AF&PA's standards development procedures.
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From: Jim Wilson <wilsonengineers@yahoo.com>
Subject: Steel straps on wood shear walls
To: seaint@seaint.org
Is there a definitive reference stating that steel=A0straps are okay=A0to b=
e placed over wall sheathing and not directly to the studs before the sheat=
hing is installed?=A0 I've googled it, I've called Simpson and I've tried t=
o look to the APA but I can only find indirect statements about it.=0A=0ASi=
mpson does mention that different nail sizes can be used for the different =
installation methods.=A0 That=A0isn't generic enough for the condition.=0A=
=0AThanks,=0AJim Wilson, PE=0AStroudsburg, PA