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RE: UBC 1997
- To: <seaint(--nospam--at)seaint.org>
- Subject: RE: UBC 1997
- From: "Mark Deardorff" <mark(--nospam--at)rstavares.com>
- Date: Wed, 15 Aug 2007 10:56:18 -0700
BTW, The formula for
non-constrained conditions, for the purpose of calculating lateral soil bearing,
are limited to a depth of embedment of 12'. I am not sure the formulas are valid
for a 46' embedment.
Mark E. Deardorff, SE
R & S Tavares
9815 Carroll Canyon
Diego, CA 92131
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This is the same equation as in the 2006 IBC 1805.7.2.1 Eqn 18-9.
Don't forget that you can use the S1 values x2 for isolated poles
allowing .5" movement, as well as the 1/3 increase.
Padmanabhan Rajendran <rakamaka(--nospam--at)yahoo.com> 8/15/2007 12:04 PM
There are frequent references to UBC 1997 in this list. As old
as that code is, does it continue to be allowed by the permitting agencies?
Considering that the methodologies to calculate wind and seismic loading have
changed significantly, why has UBC 1997 not become defunct?
Do ISO 9002
certified institutions still use UBC 1997?
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