Maximum
Length*
Type
Size (Inches)
(Feet/Inches)
Pipes (40S)
1
7-0
1-1/4
9-0
1-1/2
10-4
2
13-1
3.5.4
Bolts
Bolts used for attachment of anchors to pipe and structure shall be not
less than 13 mm 1/2 inch diameter.
3.6
EQUIPMENT SWAY BRACING
3.6.1
Suspended Equipment and Light Fixtures
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NOTE: Equipment weighing more than one-fifth of the
dead load of slabs above grade at the equipment
level or equipment weighing more than one-tenth of
the building weight must be checked by structural
analysis to conform with building seismic
provisions. Such equipment has a pronounced effect
on the response of the building. The following
items shall be checked structurally and specific
seismic requirements incorporated on appropriate
drawings and in the relevant specifications.
Pole or frame supported equipment.
Storage tanks for water and oil.
Storage racks with upper storage level more than 2.4
m (8 feet) in height.
Smoke stacks taller than 15 m (50 feet) in height.
See Chapter 10 of TI 809-04 to compute the force
needed to fill in the bracketed blank.
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Equipment sway bracing shall be provided for items supported from overhead
floor or roof structural systems, including light fixtures. Braces shall
consist of angles, rods, wire rope, bars, or pipes arranged as shown and
secured at both ends with not less than 13 mm 1/2 inch bolts. Sufficient
braces shall be provided for equipment to resist a horizontal force as
specified in Chapter 10 of TI 809-04 without exceeding safe working stress
of bracing components. The Contractor shall provide, for approval,
specific force calcualtions in accordance with Chapter 10 of TI 809-04 for
the equipment in the project. Details of equipment bracing shall be
submitted for acceptance. In lieu of bracing with vertical supports, these
items may be supported with hangers inclined at 45 degrees directed up and
radially away from equipment and oriented symmetrically in 90-degree
intervals on the horizontal plane, bisecting the angles of each corner of
the equipment, provided that supporting members are properly sized to
support operating weight of equipment when hangers are inclined at a
SECTION 13080
Page 15
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