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RE: Seismic Mechanical Restraints

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Section 1632.1 of the 1997 UBC  typically requires design of the equipment,
however if the equipment weighs less than 400 lbs it exempts the structural
design requirements. It also depends on that agencies specific requirements.


-----Original Message-----
From: Michael Bryson [mailto:bryson(--nospam--at)civil.ubc.ca]
Sent: Tuesday, August 29, 2000 5:17 PM
To: seaint(--nospam--at)seaint.org
Subject: Seismic Mechanical Restraints



A building inspector wants calculations for seismic bracing details for
the air handling units (suspended from the ceiling) shown on the
mechanical drawings. Is this to be done by the structural engineer? The
mechanical engineer just got his details from SMACNA or from jobs done
with DSA in the past.

Also, they want the air handling unit weights shown on the structural
drawings.




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