From: Robert Kazanjy <rkazanjy(--nospam--at)uci.edu>
Date: Sat, 12 Jun 1999 19:06:07 -0700
> A light-frame structure, with plywood shearwalls, does not have
> lengths of tributary shearwalls (Li), within the 'wall-line' being
> to comply with the prescribed height/length ratios for plywood shear
> May the bases of the Li be elevated above the finish floor to attain
> the minimum
> height/length ratio? If so, must all Li within the wall-line be the
> Thanks in advance.
I have seen this type of thing done, esp at garage door openings.
However the the way it was done was a joke. Can you really depend on
the extra chunk of concrete to develop a narrow shearwall? Unless the
"extended" stem wall or corner pier is designed & constructed properly
(a grade beam & adequate reinforcement) you'd just be kidding yourself.
For a proper design the concrete must be able to fully develop the
BTW does this mean 6" or 2' ?
May the bases of the Li be elevated above the finish floor to attain the
Robert Kazanjy, PE **Disclaimer: I speak for myself not UC-Irvine**
Senior Development Engineer
Civil & Environmental Engineering