Water tanks are typically designed to AWWA D100 (Welded Steel) or AWWA D110
(Prestressed Concrete). UBC is used as a guide to establish wind and
seismic environment. Note that R factors for tanks in AWWA are typically
lower than found in UBC.
Bill Cain S.E.
From: Mark Pemberton [SMTP:Markp(--nospam--at)lbdg.com]
Sent: Tuesday, January 02, 2001 12:56 PM
Subject: RE: Wind and Seismic for Redding CA
75 MPH, Exposure "C", Zone 3, 30 PSF snow load
are typically used in Redding. (1997 UBC)
Mark Pemberton, P.E.
From: Ken Peoples [mailto:lvtakp(--nospam--at)yahoo.com]
Sent: Tuesday, January 02, 2001 12:31 PM
Subject: Wind and Seismic for Redding CA
I have a client who needs to specify a tank that will
be installed near Redding CA. He has asked me what to
tell the manufacturer about wind and seismic loads.
Being from the east coast, I would just like to check
with some of you CA Engineers to be sure that what I
am going to tell him is OK. I guess my first question
is whether I can use 1997 UBC. If I can, I think I
can tell him Seismic Zone 3 with a Minimum Basic Wind
Speed of 80 mph. Any comments are appreciated.
Kenneth S. Peoples, P. E.Lehigh Valley Technical Associates2102 Main
Suite 200Northampton, PA 18067ph: 610-262-6345fax:
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