Structural · S-MVXWY

Fire Protection Pipe Hanger Detail

Scale: 3/4" = 1'-0"
Units: imperial
Sheet: S303
Discipline: Structural

Materials

In this detail

HANGER SHALL BE LOCATED AT PANEL POINTS AT EACH JOIST PIPE PERPENDICULAR TO JOISTS PIPE PERPENDICULAR TO JOIST PIPE PARALLEL TO JOIST LOCATE SUPPORT AT JOIST PANEL POINTS S 2/3 S MAX. 1/3 S MIN. & SPRINKLERS COORD. W/ GIRDERS & SPRINKLERS COORD. W/ GIRDERS • WHEN HUNG PARALLEL TO JOISTS, PIPE WITH A MAXIMUM DIAMETER OF 4” MAY HANG FROM A SINGLE JOIST. PIPE SPACING MUST BE SUFFICIENT SO THAT NO JOIST IS AFFECTED BY MORE THAN ONE PIPE. EXCEPTION: IF COMMUNICATED DURING DESIGN, JOIST LOADING CAN BE MODIFIED TO ACCOUNT FOR PIPE WEIGHTS. • WHEN HUNG PARALLEL TO JOISTS, PIPES WITH A DIAMETER OF 6” SHALL BE SPACED SO THAT NO JOIST IS AFFECTED BY MORE THAN ONE PIPE. PIPE LOAD MUST BE REDISTRIBUTED TO A MINIMUM OF 2 JOISTS. EXCEPTION: IF COMMUNICATED DURING DESIGN, JOIST LOADING CAN BE MODIFIED TO ACCOUNT FOR PIPE WEIGHTS. • WHEN HUNG PARALLEL TO A JOIST, ALL PIPES LARGER THAN 8" ⌀ SHALL BE REVIEWED BY EOR PRIOR TO INSTALLATION. • WHEN HUNG PERPENDICULAR TO JOISTS, PIPES LARGER THAN 6" ⌀ SHALL BE REVIEWED BY EOR FOR SPECIFIC LOADS PRIOR TO JOIST FABRICATION. • THE CRITERIA LISTED IN THIS DETAIL ARE BASED ON AN ASSUMPTION THAT THE BRANCH LINES ARE NO GREATER THAN 2 ½” DIAMETER SCHEDULE 10 PIPE SPACED AT 10’-0” OC. IF THIS IS EXCEDED, NOTIFY THE EOR FOR REVIEW. • PIPES GROUPED TOGETHER MUST BE REVIEWED BY EOR FOR SPECIFIC LOADS PRIOR TO JOIST FABRICATION. • HANGERS ARE TO BE SPACED 15'-0” OR LESS. • DO NOT HANG WITH A BEAM CLAMP FROM BOTTOM CHORD OF JOIST OR GIRDER. BOTTOM CHORD HANGERS MUST BE PIPE PARALLEL TO JOISTS

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