Bill's comments below cover the seismic requirements however the wind
section of the UBC, section 1615, has similar language; "....., and any
structure may be, designed in accordance with approved national standards".
Thomas Hunt, S.E.
----- Forwarded by Tom Hunt/DFD on 09/12/01 09:43 AM -----
William" To: "'seaint(--nospam--at)seaint.org'" <seaint(--nospam--at)seaint.org>
om> Subject: RE: Competing Codes
I don't use the SBC but the UBC states, in Section1634.1.2 Criteria.:
"When applicable design standards and other design criteria are not
contained in or referenced by this code, such criteria shall be obtained
from approved national standards."
That is the exemption that allows AWWA D-100, D-103, D-110 and others for
water towers and reservoirs to be used in ICBO territory. I would expect
similar language to be contained in the other model codes.
Bill Cain, SE
From: Randy Russ [mailto:rruss(--nospam--at)eatel.net]
Sent: Wednesday, September 12, 2001 8:46 AM
Subject: Competing Codes
Paragraph 1606.1.1 of the Standard Build Code states, "Wind forces on
every building or structure shall be determined by the provisions of ASCE
7." Five exceptions to this are then listed. Nowhere in the exceptions are
telecommunication towers, water towers or metal buildings. I suspect other
building codes are similar to SBC in this regard.
Telecommunications towers are routinely designed for EIA/TIA-222-F. Water
towers use a code put out by AWWA. Metal building manufacturers design to
an MBMA code.
My question is this. By what legal authority are these other codes
allowed? I am somewhat familiar with EIA/TIA. In the first paragraph they
state that "....these standards are not intended to replace or supersede
applicable codes." If the EIA/TIA code is used without checking against
ASCE 7, isn't that superseding?
Russ Engineering Group, Inc.
Baton Rouge, La.
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