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Re: seismic restraint at mechanical units

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In a message dated 1/3/2002 4:18:47 PM Pacific Standard Time, njineer(--nospam--at) writes:

The Sheet Metal and Air Conditioning Contractors National Association [SMACNA] has published "The Seismic Restraint Manual Guidelines for Mechanical Systems".  I have a copy of a few pages from their first edition, 1991, that were part of the seminar notes from a presentation given by now  Pres. of SEAOSC, Jack Bruce, in 1993 .  I don't have a website address for SMACNA -- their mailing address in 1991 was 4201 Lafayette Center Drive, Chantilly, VA 22021.

SMACNA - Sheet Metal & Air Conditioning Contractors National Association
4201 Lafayette Center Dr.
Chantilly, VA 703-803-298022021


Smacna's "Seismic Restraint Manual" Receives American National Standards Association (ANSI) Approval

CHANTILLY, Va. -- The American National Standards Institute (ANSI) announced that SMACNA's "Seismic Restraint Manual: Guidelines for Mechanical Systems," (second edition, 1998) has been approved as an American National Standard.

ANSI recognition increases the potential that SMACNA standards are internationally adopted for regulatory use and more widely used in the U.S. by state and local governments as well as the design and engineering community. The new ANSI status will also enhance SMACNA's creditability as a standards developing organization (SDO), both domestically and internationally.

The 200-page seismic restraint manual is a set of flexible guidelines that show designers and contractors how to determine the correct restraints for sheet metal ducts, piping and conduit, so that they are more likely to remain attached to the building during an earthquake. It also illustrates very low-risk and very-high risk areas of the country can be easily and equally accommodated. The manual includes additional reader aids, alternate-bracing details and details for floor-supported piping and ductwork as well as details for seismic joints in pipes, transverse bracing for steam pipes and a suggested detail for variable air volume terminals.

The CD-ROM version of "Seismic Restrain Manual: Guidelines for Mechanical Systems" is available for purchase by contacting Information Handling Services (IHS) at 1-800-716-3447. The publication version of SMACNA's "Seismic Restraint Manual: Guidelines for Mechanical Systems" is available to non-members for $136. Engineers, architects and building inspectors may purchase the manual for the discounted price of $95. To order the book version of the manual, visit SMACNA's Web site at or contact SMACNA's Publications Department at (703) 803-2989.


Ron Fong
Fremont, CA