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RE: Competing Codes

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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.
Duke/Fluor Daniel

----- Forwarded by Tom Hunt/DFD on 09/12/01 09:43 AM -----
                    William"             To:     "'seaint(--nospam--at)'" <seaint(--nospam--at)>                         
                    <bcain@ebmud.c       cc:                                                                       
                    om>                  Subject:     RE: Competing Codes                                          
                    09/12/01 09:06                                                                                 
                    Please respond                                                                                 
                    to seaint                                                                                      

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
Oakland  CA
-----Original Message-----
From: Randy Russ  [mailto:rruss(--nospam--at)]
Sent: Wednesday, September 12, 2001 8:46  AM
To: seaint
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?

Randy Russ
Russ Engineering Group, Inc.
Baton Rouge,  La.

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