clamp shall be used where each pipe crosses the base support member.
Spacing of the base support members shall not exceed the hanger and support
spacing required for an individual pipe in the multiple pipe run.
3.1.13.12
Seismic Requirements
**************************************************************************
NOTE: Provide seismic details, if a Government
designer (either Corps office of A/E) is the
Engineer of Record, and show on the drawings.
Delete the bracketed phrase "as shown on the
drawings" if no seismic details are provided.
Sections 13080 SEISMIC PROTECTION FOR MISCELLANEOUS
EQUIPMENT and 15070A SEISMIC PROTECTION FOR
MECHANICAL EQUIPMENT or 15070N MECHANICAL SOUND,
VIBRATION, AND SEISMIC CONTROL properly edited, must
be included in the contract documents. The letters
"A" and "N" after a Section number indicate Army and
Navy; delete non-applicable Section reference for
Army and Navy projects.
**************************************************************************
Piping and attached valves shall be supported and braced to resist seismic
loads as specified under Sections 13080 SEISMIC PROTECTION FOR
MILCELLANEOUS EQUIPMENT and [15070A SEISMIC PROTECTION FOR MECHANICAL
EQUIPMENT] [15070N MECHANICAL SOUND, VIBRATION, AND SEISMIC CONTROL] [as
shown on the drawings]. Structural steel required for reinforcement to
properly support piping, headers, and equipment but not shown shall be
provided under this section. Material used for support shall be as
specified under Section 05120 STRUCTURAL STEEL.
3.1.13.13
Structural Attachments
Attachment to building structure concrete and masonry shall be by cast-in
concrete inserts, built-in anchors, or masonry anchor devices. Inserts and
anchors shall be applied with a safety factor not less than 5. Supports
shall not be attached to metal decking. Masonry anchors for overhead
applications shall be constructed of ferrous materials only. Structural
steel brackets required to support piping, headers, and equipment, but not
shown, shall be provided under this section. Material used for support
shall be as specified under Section 05120 STRUCTURAL STEEL.
3.1.14
Pipe Alignment Guides
Pipe alignment guides shall be provided where indicated for expansion
loops, offsets, and bends and as recommended by the manufacturer for
expansion joints, not to exceed 1.5 m 5 feet on each side of each expansion
joint, and in lines 100 mm (4 inches) 4 inches or smaller not more than 600
mm 2 feet on each side of the joint.
3.1.15
Pipe Anchors
Anchors shall be provided wherever necessary or indicated to localize
expansion or to prevent undue strain on piping. Anchors shall consist of
heavy steel collars with lugs and bolts for clamping and attaching anchor
braces, unless otherwise indicated. Anchor braces shall be installed in
the most effective manner to secure the desired results using turnbuckles
where required. Supports, anchors, or stays shall not be attached where
they will injure the structure or adjacent construction during installation
SECTION 15182
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