Has anybody had the opportunity to seismic brace a 13R cpvc system in platform style construction? Recently a designer in my company submitted plans for a NFPA 13R system built of platform style construction: TJI's for the ceiling / floor assemblies and gang-nailed truss for the roof component, the AHJ asked where the seismic braces were? The system was supported with "offset" style hangers in the floor joist cavity and 2-hole strap hangers on top of the bottom chord of the roof trusses in the attic portion. Ultimately we braced this system utilizing a brace manufactured by AFCON - expensive and labor intensive. I can't find any exemptions in the codes (IBC, IFC, etc) for deleting the seismic bracing for this application, 13R say's Hanging and Bracing is to be in compliance with NFPA 13, common sense say's this piping and hanging scenario is sufficient provided the pipe is supported per its listing. Does anybody have any ideas?
Jim Johnston, P.E. Fire Protection Engineer Inland Fire Protection, Inc 1100 Ahtanum Road Yakima, WA 98903 Phone 509-248-4471 Fax 509-248-1180 [email protected] _______________________________________________ Sprinklerforum mailing list http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field)
