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RE: Perforated Shear Wall Opening Design

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Volume I of the 2000 IBC Structural/Seismic Design Manual has an example with one opening on page 239.  The older version of the design manual using UBC has the same or similar example.  I’ve seen another example somewhere that was also similar with only one opening.  Several years ago I was looking at wood design texts that had an example with multiple openings but can’t recall the name and haven’t run across it since, due to a couple of moves in between.  I fought through an example that I made up with several openings one time though, just to figure out how to fight through the math, and statics.  Anyway, I’m hoping someone that is good with writing spreadsheets (definitely not me) will come up with something for multiple openings.




Joseph R. Grill, P.E. (Structural)

Shephard - Wesnitzer, Inc.

Civil Engineering and Surveying

P.O. Box 3924

Sedona, AZ  86340

PHONE (928) 282-1061

FAX (928) 282-2058



-----Original Message-----
From: Rich Lewis [mailto:seaint03(--nospam--at)]
Sent: Tuesday, January 31, 2006 1:46 PM
To: seaint(--nospam--at)
Subject: Perforated Shear Wall Opening Design


IBC 2305.3.7.1 states “Where shear walls with openings are designed for force transfer around the openings, the limitations of  . . . “


I have not been able to find a source on designing the openings for force transfer.  I’ve looked on APA web site, NDS publications and my Breyer’s text to no avail.  Can anyone give some references or interpret what detailing is needed for “designing for force transfer around openings”?