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- To: <seaint(--nospam--at)seaint.org>
- Subject: Building from 1969 (more info)
- From: "Gerard Madden, SE" <gmse(--nospam--at)comcast.net>
- Date: Fri, 18 Jul 2003 13:38:34 -0700
I quickly reviewed the PML after I sent my message and I found the following:
1 of the 3 buildings does not have tuck under parking and it was given a separate PML.
So since there is a 10% difference, one can deduce (since it isn’t clearly stated) that the soft-story assumption rather than the conventional construction of the wood framed structure is putting the PML number above the magical 20% limit.
So again, I feel that if I can prove the tuck under condition is no worse than the conventional construction above, only very minor things like beefing up the drag/collectors, rather than trying to install new moment frames or shotcrete the existing cmu walls would be necessary and the PML should be below 20% and more likely the 17% quoted previous if the structure was spread footings rather than posts and cmu walls.
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