But please note that for the typical wood frame house that we see in
California, by definition given in section 1602.1, our diaphragms are rigid.
George Richards, P. E.
From: merrick group [mailto:merrickgroup(--nospam--at)compuserve.com]
Sent: Friday, May 12, 2000 2:18 PM
Subject: 2000 IBC and Cantilever Column issue
Almost the same.
1617.6.3 Combination along the same axis
R<= R of least of any system in that same direction
exception: For light frame, flexible diaphragm buildings, of Seismic Use
Group I and two stories or less in height: Resisting elements are permitted
to be designed using the least value of R for the different structural
systems found on each independent line of resistance. The value of R used
for design of diaphragms in such sturctures shall not be greater than the
least value for any of the syems utilized in that same direction.
David B. Merrick SE