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Re: Redundancy Factor

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In San Francisco, because of narrow deep lots (25x120) the redundancy factor in
the short direction will almost always be 1.5.  This type of lot is usually
occupied by 1-3 dwelling unit buildings of 3-4 stories.  It would be applicable
for both new construction and retrofit under the SF Building Code.  In the long
direction the redundancy factor could not exceed 1 because the side walls, on the
property line and are typically 60'+ long with no openings.

Seaintonln(--nospam--at) wrote:

> The code has been in place for wood framing for almost a month. I am
> interested in finding out from engineers who have used the method for wood
> structures with wood diaprhagms if they have calculated a redundancy factor
> greater than 1.0 for residential structures including apartment buildings and
> condominiums. If you have, how large were these projects and how many stories?
> Dennis Wish PE