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RE: seaint Digest for 6 Apr 2005

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James:

L/90 is from footnote a and only applies for secondary wall members covered
with metal siding.  There is an L/240 limit for brittle finishes and an L/120
deflection limit for flexible finishes in 2003 IBC Table 1604.3.

Scott

-----Original Message-----
From: Lutz, James [mailto:James.Lutz(--nospam--at)earthtech.com]
Sent: Thursday, April 07, 2005 12:29 PM
To: 'seaint(--nospam--at)seaint.org'
Subject: RE: seaint Digest for 6 Apr 2005


The 2003 IBC has limits for out of plane deflection as a ratio of span that
includes wind. See Table 1604.3. They show a maximum of L/90 for wind load
deflection.The only deflection criteria I am aware of for earthquake
pertains to drift. 

-----Original Message-----
From: Bob Riley [mailto:bob(--nospam--at)m-me.com]
Sent: Thursday, April 07, 2005 12:12 PM
To: seaint(--nospam--at)seaint.org
Subject: RE: seaint Digest for 6 Apr 2005


Is there any a published criterion or recommendations for an allowable
out-of-plane-deflection (due to wind or seismic) for a wall?  In my case it
is a light gage steel wall w/ stucco finish.  I have looked in the SEAINT
archives and UBC97 but have found only information about masonry walls.

If you could reply directly to my email address as I receive the digest form
of the list I would appreciate it.

Thank you in advance,

Bob Riley, P.E.
www.m-me.com





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