John, I'm looking at one of those now. A designer has sent me a set of plans for review and is just incensed that I would question the ability of a side beam bracket in a 4x12 to properly support the weight of a 6" main. He was equally upset when I asked if he had information from the structural engineer to endorse the same member accepting a horizontal force of almost 800 pounds in lateral seismic loading.
He told me stuff about my mom that I never knew. PARSLEY CONSULTING Ken Wagoner, SET 760.745.6181 voice 760.745.0537 fax [email protected] <mailto:[email protected]> e-mail www.ParsleyConsulting.com <http://www.ParsleyConsulting.com> website John Drucker wrote: > George, > > Some of us do. The 20006 IBC (Chapter 16 - 1602.1, 1606.2 1604.2) does > include provisions with regards to sprinkler piping loading. There have been > times when the loading of a structural member has been questioned and where > the structural engineer has responded by "beefing" up the connection. If the > fire inspector isn’t picking it up the building inspector sure should be. > > > John Drucker, CET > Fire Protection Subcode Official > Fire/Building/Electrical Inspector > Fire Marshals Office > Borough of Red Bank, NJ > > > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of George Church > Sent: Wednesday, July 15, 2009 5:03 AM > To: [email protected] > Subject: RE: Trapeze hangers? > > I saw a WalMart renov in York where the 6" main was c-clamped to the bottom > "wave" of those bar joists that have Z purlin material instead of angle iron > as a bottom chord. > > I moved over a few feet so as not to be walking underneath it. How can > anyone look at that and not raise a question? > > glc > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of J. Scott > Mitchell > Sent: Tuesday, July 14, 2009 11:22 PM > To: [email protected] > Subject: RE: Trapeze hangers? > > I saw an aircraft hangar once that had 8" bulk mains hung from this light > weight construction. The sprinkler contractor and structural engineer put > their heads together before hand. The result was strut channel trapezes > spaced 8 ft apart and spanning four z-purlins. > > The real headache comes when there is no engineer and the GC buys a > pre-engineered building from a building company who says the warranty is > void if you hang anything from the purlins. > > J. Scott Mitchell, P.E. > > --- On Tue, 7/14/09, [email protected] <[email protected]> wrote: > > From: [email protected] <[email protected]> > > It's very well possible. It all depends on the size and gauge of the > structural member. More and more installations are using pre-engineered > buildings which are typically of a light weight construction and not really > designed for much static loading from the steel. > > Craig L. Prahl, CET > Fire Protection Specialist > > > > > > _______________________________________________ > 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) > > > _______________________________________________ > 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) > ------------------------------------------------------------------------ > > > No virus found in this incoming message. > Checked by AVG - www.avg.com > Version: 8.5.387 / Virus Database: 270.13.14/2238 - Release Date: 07/14/09 > 18:03:00 > > _______________________________________________ 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)
