Section 16990
SEISMIC RESTRAINT
Construction Specifications
PART 1
GENERAL
1.1.
GENERAL REQUIREMENTS
1.1.1.
Comply with requirements of Division 01.
1.1.2.
Comply with requirements of Sections 16010.
1.1.3.
Provide a complete system of structural supports and bracing to all electrical equipment in Division
16 to comply with Part 4, Structural Design, of the Provincial Building Code of the province in
which Project is located.
1.1.4.
Under this Contract, Division 16 shall include in their Bid, the services of a registered Professional
Engineer, qualified as a seismic restraint design Consultant to provide detailed calculations,
installation Drawings, supervision and inspections of installations of the seismic restraint designs
and connection methods to the structure for all Division 16 Work.
1.2.
RELATED WORK
Section 03300:
Section 05120:
Section 05210:
Section 05310:
Section 05500:
Section 06100:
Section 09250:
Section 09510:
Section 09900:
Division 15:
1.3.
Cast-In-Place Concrete
Structural Steel
Steel Joists
Steel Deck
Miscellaneous Metal
Rough Carpentry
Gypsum board
Acoustical Ceilings
Painting and Finishing
Mechanical
QUALITY ASSURANCE
1.3.1.
Provide all earthquake restraint devices including limit stops and slack cables, where required for all
electrical components including equipment and piping in accordance with the latest published edition
of the provincial Building Code, local Building Bylaws and the National Building Code (NBC).
1.3.2.
The seismic design engineer shall submit a letter at the end of the Project stating that all electrical
components have been installed in accordance with the latest published edition of the Provincial
Building Code, local Building By-laws and the NBC. The seismic restraint design consultant shall
also be responsible for signing and sealing all related seismic restraint assurance letters and for field
review and reporting of seismic restraint installations. (Sketches used on Drawings shall be used as
guidelines only).
1.3.3.
The restraint equipment during or after the event of an earthquake does not necessarily have to
remain operational as under normal operating conditions. The mandatory requirement is hat the
restrained equipment shall not move from its normal position in the event of an earthquake.
PART 2
PRODUCTS
2.1.
MATERIALS
2.1.1.
Canadian Tire
Use products as indicated herein and as per the seismic bracing designers’ recommendations.
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Revised 13 09 17
Section 16990
SEISMIC RESTRAINT
PART 3
EXECUTION
3.1.
INSTALLATION
Construction Specifications
1
3.1.1.
This Subcontractor shall submit to the Electrical Consultant for approval, details of the seismic
bracing for electrical equipment. Details shall be prepared by a certified professional recognized in
the field of seismic design.
3.1.2.
All electrical equipment shall be braced or anchored to resist a lateral force acting in any direction
using the following criteria:
1.
Fixed equipment on structure: Horizontal force factor = 0.9
2.
Suspended equipment: Horizontal force factor = 4.4
3.1.3.
Zonal velocity ratio (horizontal ground velocity) shall be determined from the applicable section of
the supplement to the National Building Code.
3.1.4.
Where drilling of the structure is required for anchorage requirements, the drilling shall be subject
the approval of the Structural Engineer.
3.1.5.
Provide all required seismic bracing, supports, bolts, washers, nuts, etc. for conduits and conduit
supports, cable tray supports, track cable, etc.
3.1.6.
Provide a system to secure all recessed luminaries independently from the suspended ceiling system.
Luminaires shall be supported directly and laterally from the building structure above, using NO. 12
gauge wire minimum.
3.1.7.
At the end of the Project provide a certificate from the seismic design engineer, stating the
installation has been carried out in accordance with their design and local requirements. This
Subcontractor to pay for the required field reviews and the cost of the certificate.
END OF SECTION
1
Revised 13 09 17
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Canadian Tire