Section 15200
SEISMIC CONTROL
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 Section 15010
1.1.3.
Provide seismic restraints for all equipment, ductwork, and piping covered by Division 15 except as
noted herein.
1.1.4.
Under this Contract, Division 15 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 connections methods to the structure for all Division 15 Work.
1.1.5.
Unless indicated otherwise, seismic restraints shall be capable of a 2g horizontal force in any
direction.
1.1.6.
Piping and ductwork crossing building expansion joints shall have provision for building motion.
1.1.7.
Ensure equipment is sufficiently rigid for seismic restraint point loading.
1.1.8.
Provide seismic restraints on all emergency generator exhaust piping and ventilation ductwork no
matter what the size.
1.1.9.
Provide seismic restraints on all rooftop units. follow unit manufacturer's procedure for installation.
1.2.
RELATED WORK
Section 03300:
Section 05120:
Section 05210:
Section 05310:
Section 05500:
Section 06100:
Section 09900:
Section 15220:
Section 15300:
Section 15400:
Section 15801:
Section 15802:
Division 16:
1.3.
Cast-In-Place Concrete
Structural Steel
Steel Joists
Steel Deck
Miscellaneous Metal
Rough Carpentry
Painting and Finishing
Slack Cable Restraints
Fire Protection (Sprinklers)
Plumbing and Drainage
Heating, Ventilation and Air Conditioning (Gas).
Heating, Ventilation and Air Conditioning (Electric).
Electrical
QUALITY ASSURANCE
1.3.1.
Provide all earthquake restraint devices including limit stops and slack cables, where required for all
mechanical components including equipment and piping in accordance with the latest published
edition of the provincial Building Code, Local Building Bylaws and National Building Code (NBC).
1.3.2.
The seismic design engineer shall submit a letter at the end of the Project stating that all mechanical
components have been installed in accordance with the latest published edition of the provincial
Building Code, Local Building Bylaws and 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 shown on Drawings shall be used as
guidelines only).
Canadian Tire
Page 1 of 3
Revised 13 09 17
Section 15200
SEISMIC CONTROL
1.3.3.
Construction Specifications
The restrained 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 that the
restrained equipment shall not move from its normal position in the event of an earthquake.
1.4.
REFERENCE STANDARDS
1.4.1.
Work shall conform to latest published edition of:
1.
National Building Code Section 4.1.9.1
2.
Provincial Building Code Section 4 (of the province in which Project is located)
3.
Local Building Bylaws
4.
NFPA 13-2007 and NFPA 20-2007.
5.
Guidelines for Seismic Restraints of Mechanical Systems and Plumbing Piping Systems, as printed
by SMACNA.
1.5.
SUBMITTALS
1.5.1.
Submit Shop Drawings, including details of attachment to the structure. Attachment details to the
structure to be approved by a Registered Professional Engineer in the province of the Project and are
subject to the review of the Project structural Consultant. Proposed inserts or connections to
structure are to follow directions of structural Consultant.
PART 2
PRODUCTS
2.1.
MATERIALS
2.1.1.
Rigid seismic restraints shall be:
1.
Angle iron or channel or miscellaneous metal components suitable for the duty and as indicated in
the SMACNA Guidelines.
2.
Manufactured brackets, clamps, etc. as indicated by Shop Drawings submitted for the Project.
3.
Note that attachments for seismic restraints must be suitable for any direction of horizontal loads as
well as vertical loads.
2.1.2.
Bolts and fasteners:
1.
Threaded fasteners shall be sized and tested to not exceed their proof strength when the restrained
equipment is subject to 3 times the maximum seismic force.
2.
Bolts shall meet ASTM A325-10 strength specifications with grade identification markings
displayed on bolt head.
PART 3
EXECUTION
3.1.
INSTALLATION
3.1.1.
Restraining devices must be placed on all sides of equipment.
3.1.2.
Secure all control panels to withstand seismic loading.
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Revised 13 0917
Canadian Tire
Section 15200
SEISMIC CONTROL
Construction Specifications
3.1.3.
The installation of seismic restraints shall not interfere with vibration isolation capabilities.
3.1.4.
Utilize seismically rated isolators whenever possible to mount vibrating equipment.
3.1.5.
Where seismically rated isolators cannot be used on vibrating equipment, use non-seismic isolators
and provide slack cable restraints.
3.1.6.
For non-vibrating equipment, secure the equipment to the structure by:
1.
Bolting directly to the structure.
2.
Use taught cable restraints, not slack
3.
Use rigid seismic restraints. Rigid restraints are preferable to cable restraints as cables have no
compression load capabilities.
3.1.7.
Installation of bolts and fasteners:
1.
Torque bolts to 75% of proof load.
2.
For treaded connections use either self-locking nuts, double nuts or a chemical thread lock.
3.1.8.
Inserts shall be installed in accordance to the manufacturer’s recommendations.
3.1.9.
Wherever a diameter differential between any anchor or attachment bolt and that of any seismic
attachment hole exceeds ⅛", Mason 0.5 FAST -steel reinforced epoxy putty, or similar pre-approved
product, must be used to pack the air gap.
3.1.10.
The vibration isolation vendor shall be responsible for providing independently tested/seismically
rated vibration isolation products complete with appropriately sized anchor bolts.
3.1.11.
Wherever a diameter differential between any vibrations isolator cap screw and the attachment hole
in the equipment exceeds ⅛", Mason FAST, or similar pre-approved product, must be used to pack
air gap.
3.1.12.
Seismically rated isolators and seismic slack cable hardware is to be independently tested and
provided, complete with anchor bolts to structure, by vibration isolation vendor only. Nontested/uncertified hardware is not acceptable.
3.1.13.
Equipment having slots at attachment points is not acceptable. Where special permission has been
granted for equipment having slot type attachments, slots must be fully packed with Mason 0.56, or
similar pre-approved product, around attachment bolts or anchors.
3.1.14.
Prior to installation of any seismic restraints, review with the structural Consultant the methods of
attachment and review magnitude of load being served.
3.1.15.
Sketches included in the Drawings are for references only. Contractor shall review these Drawings
and provide necessary calculations and installation details to meet seismic requirements.
END OF SECTION
Canadian Tire
Page 3 of 3
Revised 13 09 17