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RE: 2000 IBC and Cantilever Column issue

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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.

-----Original Message-----
From: merrick group [mailto:merrickgroup(--nospam--at)]
Sent: Friday, May 12, 2000 2:18 PM
To: INTERNET:seaint(--nospam--at)
Subject: 2000 IBC and Cantilever Column issue

Almost the same.

ICB 2000
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