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Re: Seismic forces from industrial equipment

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I recommend you check the CALTRANS Seismic Design Guide.

Bridges with single column bents behave in a similar manner.

jim
----- Original Message -----
From: <RajSTC(--nospam--at)aol.com>
To: <seaint(--nospam--at)seaint.org>
Sent: Wednesday, September 06, 2000 2:44 PM
Subject: Seismic forces from industrial equipment


>
> Seismic criteria in ASCE 7 and UBC are tailored for building structures.
> ASCE 7-93 specifically excludes industrial towers, equipment, etc., from
its
> provisions. UBC 1997 has increased the confusion that existed in previous
> versions.  So far, I was using some judgment in estimating seismic forces
for
> horizontal tanks supported on concrete pedestals.  The error in judgment,
if
> any, would not affect the design in lower seismic zones because wind loads
> would more likely to be the governing lateral force.  However, for heavier
> tanks, the error in estimating seismic force may be less desirable.
>
> Any suggestions for estimating seismic forces from industrial equipment
such
> as horizontal tanks supported on concrete pedestals?
>
> P. Rajendran
> Service & Technology Corporation
> 105 SW Penn
> Bartlesville, OK 74003
> Ph: 918 336 8161  FAX: 918 336 8265
>
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