I am designing a Fire Sprinkler system where the ceiling is attached to 3" below the bottom of the ceiling joist and steel beams. They want to drill holes in the wood and steel beams (not sure how they are going to get approval for this for a historical landmark in Beverly Hills), but is there anything in NFPA or CFC addressing Earthquake bracing for piping that has no chance of movement similar to hanger in holes in structure (NFPA-13, Section 17.1.7.3)? The entire system is a 1½" (sch. 40) grid system. 17.1.7.3 Holes through solid structural members shall be permitted to serve as hangers for the support of system piping, provided such holes are permitted by applicable building codes and the spacing and support provisions for hangers of this standard are satisfied
Thanks,George Medina Jr. Sr. Fire Sprinkler DesignerSINGLETON FIRE PROTECTION INC.Office: (818) 252-5744Cell: (323) 906-5701 Business Hours: 9:00am-5:00pm
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