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Question Regarding Plan Structural Irregularities (Table 16-M)[Subject Prev][Subject Next][Thread Prev][Thread Next]
- To: "'seaoc(--nospam--at)seaoc.org'" <seaoc(--nospam--at)seaoc.org>
- Subject: Question Regarding Plan Structural Irregularities (Table 16-M)
- From: Ben Maxwell <BenM(--nospam--at)crjarch.com>
- Date: Thu, 4 Dec 1997 08:36:18 -0800
Does a Type 3 Diaphragm discontinuity irregularity apply to a 2-story tilt-up building with a rigid second floor diaphragm and a flexible, panelized roof diaphragm? Obviously, the stiffness of these two diaphragms differs by more than 50%, but the Code states the irregularity applies "from one story to the next." Does provision intend to include the roof diaphragm? I ask since in Table 16-L-2., Weight (mass) irregularities, the Code excepts roofs lighter than the floor below. It seems that the same argument may apply to 16-M-3. Any suggestions? Thanks, Ben Maxwell, P.E.
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