Complete Compiled Specification.pdf - Peck Ormsby Construction

All equipment not anchored directly to the floors shall be restrained by cables as designed and furnished by the
Restraint Manufacturer.
Isolated Equipment: All vibration isolated equipment shall be mounted on rigid steel frames or concrete bases
as described in the vibration control specifications unless the equipment manufacturer certified direct attachment
capability. Each spring mounted base shall have a minimum of four all-directional seismic snubbers that are
double acting and located as close to the vibration isolators as possible to facilitate attachment both to the base
and the structure. Snubbers shall be installed with factory set clearances.
Piping: All isolated and non-isolated piping 2-1/2" I.D. and larger shall be protected in all planes by restraints to
accommodate thermal movement as well as restrain seismic motion. Where necessary the piping restraints
shall be resiliently attached to the piping with vibration dampening inserts to prevent the transmission of vibration
to the building structure. Locations shall be as scheduled and shall include but not be limited to:
At all drops to equipment and at flexible connections.
At all 45 deg. or greater changes in direction of pipe.
At horizontal runs of pipe, not to exceed 30 ft. O.C. spacing.
Piping shall be restrained by a cable restraining system using a minimum of two cables at all restraint points.
Piping in mechanical rooms shall have additional restraints as scheduled.
Non-Isolated Equipment: The restraint systems for all non-isolated equipment are to be installed to resist
stresses produced by lateral forces according to Sec. 2312 of the Uniform Building Code with an Occupancy
Importance Factor of 1.5, a Seismic Zone Factor of Z = 0.75 for Zone 3 and a Horizontal Force Factor for
Elements of Structures and Nonstructural Components of Cp = 0.3. In addition, the vertical forces restraint
requirement shall be half the value of the horizontal forces. All equipment not anchored directly to floors shall
be restrained by cables as designed and furnished by the Restraint Manufacturer.
Acceptable Manufacturers and Suppliers for Non-Isolated Systems:
1. Mason Industries, Inc.
2. Korfund
3. Amber/Booth Company
4. Vibration Mountings and Control Company
Manufacture and design of restraints and anchors for internally isolated equipment shall be the responsibility of
the manufacturer of the vibration isolators furnished with the equipment.
Piping, ductwork, and equipment without moving parts shall be restrained as shown and noted on the drawings.
Locations shown are approximate and shall be coordinated with other trades and with the structural engineer at
the job site.
Field Services:
The seismic restraint manufacturer's engineer shall inspect the final installation and shall certify that all
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SEGO LILY ELEMENTARY SCHOOL CLASSROOM ADDTION March 2, 2009
BASIC MATERIALS & METHODS 15050-19