FEMA 350 and SMRF's[Subject Prev][Subject Next][Thread Prev][Thread Next]
- To: <seaint(--nospam--at)seaint.org>
- Subject: FEMA 350 and SMRF's
- From: "Pat Clark" <bcinc(--nospam--at)nanosecond.com>
- Date: Wed, 7 Feb 2001 17:01:05 -0800
I have two questions regarding a SMRF and the new FEMA 350 guidelines. I am designing a moment frame in a single family residential project, employing an RBS (reduced beam section).
First, FEMA requires cyclic testing of RBS moment frame connections on all SMRF's. Does anyone know of any tests done on sections from W10 to W18? I know that these sizes are considered small for frames, but often in residential construction I now find myself designing moment frames. Am I limited to OMRF's?
Second, I don't have the new FEMA 350 guidelines, and a plan checker has insisted that it specifies only A572 Grade 50 steel for all moment frame beam and column connections. I design all of my steel frame connections with an increase in yield strength to grade 50 to compensate for the expected yield stresses for A36 steel, but still specify A36. Does someone have this publication?
Any help would be greatly appreciated.
Pat Clark, P.E.
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