If you used Harvel pipe, look at their installation instructions-Hangers and Supports 42-44. This explains their requirements (listing) for hangers and supports. If you didn't check the listing for the pipe that you used. We are in a seismic zone and typically we use Erico or Tolco straps etc for our plastic piping and have never had it kicked back. Even the straps are supplied with their own screws from both of the above manuf., this is part of their listing. If you follow the listing on the pipe and then the strap, I don't see where you are not in compliance.
Bobby Gillett Sr.Project Manager Key Fire Protection, Inc. [email protected] (731) 424-0130 office (731) 424-9285 fax (731) 267-4853 cell -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Todd Williams Sent: Wednesday, December 24, 2008 1:46 PM To: [email protected] Subject: RE: Seismic Bracing CPVC in 13R Applications Are you sure AFCON didn't tell you that so they could sell you more stuff? It would seem that anyone building a strap hanger and being aware of this problem would have a hanger to meet this standard. At 02:20 PM 12/24/2008, you wrote: >We used cpvc strap hangers, no rod was used. We spoke to AFCON (hanger >manufacturer) their engineer say's strap hangers don't provide the exemption >- my guess would be the #18 screws are the primary problem, the punched >holes will not allow any attachment larger than 1/4". > >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] > >-----Original Message----- >From: Todd Williams [mailto:[email protected]] >Sent: Wednesday, December 24, 2008 11:06 AM >To: [email protected] >Subject: Re: Seismic Bracing CPVC in 13R Applications > >Were the rods less than 6"? > > > >At 01:54 PM 12/24/2008, you wrote: > >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) > >Todd G. Williams, PE >Fire Protection Design/Consulting >Stonington, Connecticut >www.fpdc.com >860.535.2080 >_______________________________________________ >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) > >_______________________________________________ >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) Todd G. Williams, PE Fire Protection Design/Consulting Stonington, Connecticut www.fpdc.com 860.535.2080 _______________________________________________ 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) _______________________________________________ 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)
