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Re: Construction method for Second Story Additions -Reply

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Thanks for clearing this up Tim. It's been a few years and I don't remember
every having a problem with anything but the second story setback
requirments. However, I do remember that a change occured in the L.A. City
code regarding designing the second story as a post and beam. I never really
took it seriously since it would never occur to me to keep the systems
separate - but it must have been done to warrant a change in the city code.
Thanks again and I hope Kate was able to get something constructive from

-----Original Message-----
From: Tim McCormick <TMCCORMI(--nospam--at)BAS.CI.LA.CA.US>
To: seaoc(--nospam--at) <seaoc(--nospam--at)>
Date: Friday, December 05, 1997 4:06 PM
Subject: RE: Construction method for Second Story Additions -Reply

>Dennis, you wrote,
>"Years ago I designed quite a few second story additions in Los Angeles
>with this same concept. The second story was carried by post and
>beam construction and the shear transfers where made to the first floor
>"beefed-up" existing or new shear elements (walls, frames etc.).
>I believe that the City of Los Angles tried to outlaw (and may have
>succeeded) the design of post and beam second story structures.  . . .
>Tim McCormick (who is a frequent contributor) may be prompted to
>respond to you about this one.   . ... .
>As long as you tie the load path from the roof down to the foundation for
>gravity and lateral, I don't think this would be considered strictly a post
>and beam type structure. Check with the City of Los Angeles for the
>most conservative view.""
>Dennis, your last paragraph states our position. As long as the
>post-beam portion of the structure is properly connected to and laterally
>braced by sufficient shear walls (or equivalent methods), there is no
>concern with the vertical system using the post beam concept.