For systems and equipment in buildings that have a
performance objective higher than life-safety, the
designer should show a "G" classification for the
items under SD-02 Shop Drawings in the SUBMITTALS
paragraph. This will allow the Engineer of Record
(EOR) to: 1)Do a QC review on the anchorage and
bracing details of these essential systems, and
2)Assess the impact of the bracing and anchorage
details on the structural supporting system of the
essential building.
Design done by the Contractor must be in accordance
with TI 809-04. Loadings determined using TI 809-04
are based on strength design; therefore, the AISC
325 specifications should be used to design the
steel members in the bracing and anchorage systems.
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The requirements for seismic protection measures described in this section
shall be applied to the mechanical equipment and systems outlined in
Section 15070A SEISMIC PROTECTION FOR MECHANICAL EQUIPMENT, the electrical
equipment and systems outlined in Section 16070A SEISMIC PROTECTION FOR
ELECTRICAL EQUIPMENT, and the miscellaneous equipment and systems listed
below. Seismic protection requirements shall be in accordance with TI
809-04 and additional data furnished by the Contracting Officer, and shall
be provided in addition to any other requirements called for in other
sections of these specifications. The design for seismic protection shall
be based on a Seismic Use Group [I] [II] [IIIH] [IIIE] building occupancy
and on site response coefficients for SMS = [_____] and SM1 = [_____].
Resistance to lateral forces induced by earthquakes shall be accomplished
without consideration of friction resulting from gravity loads. The basic
force formulas, for Ground Motions A and B in Chapter 3 of TI 809-04, use
the design spectral response acceleration parameters for the performance
objective of the building, not for equipment in the building; therefore,
corresponding adjustments to the formulas shall be required.
1.2.2
Miscellaneous Equipment and Systems
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NOTE: The designer must ensure that the list below
includes all miscellaneous items to be braced.
Delete the items which are not part of the project
and add items which are not included in the list.
For equipment and systems in buildings with a
performance objective greater than life-safety, the
designer should provide two separate lists of
equipment and systems; 1) Items that are essential
to the higher level of post-earthquake performance,
and 2) Items that are not essential but are
necessary to provide a life-safety level of
earthquake protection.
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The bracing for the following miscellaneous equipment and systems shall be
developed by the [A-E] [Contractor] in accordance with the requirements of
this specification:
Storage cabinets
Ornamentations
Storage Racks
Signs and Billboards
SECTION 13080
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