I have looked online and did not see any hanger capable of doing that (hence my original question if someone knew of one) and the architect will not get what he wants.. :-)
I was originally sent a detail from the architect that used a metal strap to hold the "sprinkler pipe" or electrical conduit in place. I knew that would never work! On Thu, Sep 27, 2012 at 1:55 PM, Steve Leyton <st...@protectiondesign.com>wrote: > Again my question: Let's say it's not viable to drill the base of the > stem and you connect mid-drop, how are you going to hold the pipe at the > center of the stem base? > > Steve > > > > > -----Original Message----- > From: sprinklerforum-boun...@firesprinkler.org > [mailto:sprinklerforum-boun...@firesprinkler.org] On Behalf Of Richard > Lindner > Sent: Thursday, September 27, 2012 10:54 AM > To: sprinklerforum@firesprinkler.org > Subject: Re: Waffle slab pipe hanger installation technique > > In a phone call to Hilti yesterday (and George's reply this morning), > the recommended method would seem install into the bottom. the struct > engineer indicates horizontally through mid stem with a bolt. Hence my > confusion. > I know that installation technique is one area that I wish I knew more > about. > The architect is the one with the prerequisite for aligning under the > stem > - trying to "hide" the branch pipe in areas where the waffle slab is > exposed to view with the pipe and hangers painted white along with the > exposed concrete. I have asked him to talk to the SEOR to clarify what > can be done to hang the piping in those exposed areas so we can give the > contractor a heads up during bidding. > > > On Thu, Sep 27, 2012 at 1:08 PM, Steve Leyton > <st...@protectiondesign.com>wrote: > > > I was on planes yesterday, so dropped off this thread. I haven't met > > an SEOR that will let you tap the bottom of the stem, and if it's > > existing it's more likely to spawl than hold. > > > > Richard - you keep coming back to centering the pipe under the stem, > > but how can you do that without bending the rod, even if the slope is > "slight". > > Or using some measure of restraint to hold the pipe off-plumb from > > the point of connection to the thru-bolt or whatever anchor that you > use? > > > > Steve > > > > > > > > > > -----Original Message----- > > From: sprinklerforum-boun...@firesprinkler.org [mailto: > > sprinklerforum-boun...@firesprinkler.org] On Behalf Of George Church > > Sent: Thursday, September 27, 2012 2:32 AM > > To: sprinklerforum@firesprinkler.org > > Subject: RE: Waffle slab pipe hanger installation technique > > > > Maybe its just really early, but wouldn't an HDI-P into the bottom of > > the stem work for BL sized piping? > > Obviously I'm not living in a seismic zone....yet. > > > > > > George L. Church, Jr., CET > > Rowe Sprinkler Systems, Inc. > > PO Box 407, Middleburg, PA 17842 > > 877-324-ROWE 570-837-6335 fax > > g...@rowesprinkler.com > > > > > > > > -----Original Message----- > > From: sprinklerforum-boun...@firesprinkler.org [mailto: > > sprinklerforum-boun...@firesprinkler.org] On Behalf Of Richard Lindner > > Sent: Wednesday, September 26, 2012 5:02 PM > > To: sprinklerforum@firesprinkler.org > > Subject: Re: Waffle slab pipe hanger installation technique > > > > The slope of the stems (ribs?) is slight but it is there. In > > concealed ceiling locations, it doesnt matter what is done to hang the > > > piping. There are several locations where the waffle slab is being > > left exposed and painted. The preferred route of piping would be to > > follow along the rib or stem. The depth of the rib is 14" minimum. > > The structural engineer has indicated the preferred method for > > installation would be to drill thru the rib half way up. > > > > _____________ > > ____ ______ > > \ / > > \__/ > > + > > > > If my graphics made it through intact, the "plus" sign (centered under > > > the > > rib) is where we want to locate the piping in the exposed areas and > > provide supports from there. It will be branch piping with upright > > heads to protect the space below and hopefully the largest pipe would > > be 1 1/4 or > > 1 1/2" max. > > > > > > On Wed, Sep 26, 2012 at 4:24 PM, Steve Leyton > > <st...@protectiondesign.com > > >wrote: > > > > > The stems are generally sloped - is that your case here? If so, you > > > can't hang center of stem unless you bridge multiple stems. We've > > > done in coordination with project structural engineers and have had > > > to use swivels on rods and/or channel strut trapezes. > > > > > > Steve > > > > > > Richard Lindner <rklindner.w...@gmail.com> wrote: > > > > > > What would be the preferred method of hanger installation into a > > > waffle slab type structure for hanging branch piping. The > > > structural engineer has indicated that a bolt or threaded rod > > > through the midpoint of the rib (14" > > > deep waffle) is the preferred mounting method and that a bolt or > > > threaded rod should be used. The architect would like the piping to > > > > be centered under the ribs. I am trying to envision how a > > > contractor would make the hanger connection. > > > > > > I would assume a clevis or loop hanger to support the piping. How > > > would the hanger then get connected to the bolt, remembering we are > > > centered under the tee. > > > > > > Appreciate anyone who can direct me. > > > > > > > > > Richard > > > > > > (AFSA member) > > > -------------- next part -------------- An HTML attachment was > > > scrubbed... > > > URL: > > > <http://fireball.firesprinkler.org/mailman/private/sprinklerforum/at > > > ta > > > chme > > > nts/20120926/00d3b423/attachment.html<http://fireball.firesprinkler. > > > or > > > g/mailman/private/sprinklerforum/attachments/20120926/00d3b423/attac > > > hm > > > ent.html> > > > > > > > _______________________________________________ > > > Sprinklerforum mailing list > > > Sprinklerforum@firesprinkler.org > > > http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > > > > > > _______________________________________________ > > > Sprinklerforum mailing list > > > Sprinklerforum@firesprinkler.org > > > http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > > > > > -------------- next part -------------- An HTML attachment was > > scrubbed... > > URL: < > > http://fireball.firesprinkler.org/mailman/private/sprinklerforum/attac > > hments/20120926/ebdc5a4f/attachment.html > > > > > _______________________________________________ > > Sprinklerforum mailing list > > Sprinklerforum@firesprinkler.org > > http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > > _______________________________________________ > > Sprinklerforum mailing list > > Sprinklerforum@firesprinkler.org > > http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > > _______________________________________________ > > Sprinklerforum mailing list > > Sprinklerforum@firesprinkler.org > > http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > > > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: > <http://fireball.firesprinkler.org/mailman/private/sprinklerforum/attach > ments/20120927/19819f51/attachment.html> > _______________________________________________ > Sprinklerforum mailing list > Sprinklerforum@firesprinkler.org > http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > _______________________________________________ > Sprinklerforum mailing list > Sprinklerforum@firesprinkler.org > http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > -------------- next part -------------- An HTML attachment was scrubbed... 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