What's your minimum Brad. When first posted I looked at the oldest handy 13 I had (1985) and the only bracing reference was to seismic. How'd we get the ubiquitous four way at the top of all risers except as good practice from seismic applications? I'm open to suggestions of different derivations.
On Fri, Jun 13, 2014 at 12:54 PM, Brad Casterline <[email protected]> wrote: > That's a great idea Ron, but for spec writing purposes it is probably best > to require as little as practical above the minimum, if at all ;) > > -----Original Message----- > From: rongreenman . [mailto:[email protected]] > Sent: Friday, June 13, 2014 2:34 PM > To: [email protected] > Subject: Re: Support of tall risers > > Why not just use EQ spacing and ignore the calculations. Apparently this is > just for stability. > > > On Fri, Jun 13, 2014 at 12:24 PM, Brad Casterline <[email protected] > > > wrote: > > > Thanks Jerry. We got some off-Forum feedback also and are convinced the > > best > > practice would be at least one support per piece, so are thinking max > > spacing should be 21'-0". The feedback was from a contractor who does > grain > > elevators with VERY tall risers and they use half-lengths with a support > on > > each piece! > > > > Brad > > > > -----Original Message----- > > From: Jeremy Frazier [mailto:[email protected]] > > Sent: Friday, June 13, 2014 2:01 PM > > To: [email protected] > > Subject: RE: Support of tall risers > > > > It depends, If it is a multi-story builing you need one at every > alternate > > level, offset, bottom, top and no more than 25'-0" apart. If it's not a > > multistory, just 1 hanger ring at the top of the riser within 24" > > > > -----Original Message----- > > From: Sprinklerforum [mailto: > > [email protected]] > > On Behalf Of Brad Casterline > > Sent: Friday, June 13, 2014 9:52 AM > > To: [email protected] > > Subject: Support of tall risers > > > > Where "seismic" is not required, and the riser is, say, 6" by 35 feet > tall, > > is there a requirement or rule of thumb for the vertical spacing for the > > support of it? > > > > A co-worker and I thank you in advance. > > > > > > > > Brad Casterline, NICET IV > > > > Fire Protection Division > > > > > > > > FSC, Inc. > > > > P: 913-722-3473 > > > > [email protected] > > > > www.fsc-inc.com > > > > > > > > Engineering Solutions for the Built Environment > > > > > > > > _______________________________________________ > > Sprinklerforum mailing list > > [email protected] > > > > > > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org > > > > ______________________________________________________________________ > > This email has been scanned by the Symantec Email Security.cloud service. > > For more information please visit http://www.symanteccloud.com > > ______________________________________________________________________ > > > > _______________________________________________ > > Sprinklerforum mailing list > > [email protected] > > > > > > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org > > > > _______________________________________________ > > Sprinklerforum mailing list > > [email protected] > > > > > > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org > > > > > > -- > Ron Greenman > Instructor > Fire Protection Engineering Technology > Bates Technical College > 1101 So. Yakima Ave. > Tacoma, WA 98405 > > [email protected] > > http://www.bates.ctc.edu/fireprotection/ > > 253.680.7346 > 253.576.9700 (cell) > > Member: > ASEE, SFPE, ASCET, NFPA, AFSA, NFSA, AFAA, NIBS, WSAFM, WFC, WFSC > > They are happy men whose natures sort with their vocations. -Francis Bacon, > essayist, philosopher, and statesman (1561-1626) > > A problem well stated is a problem half solved. -Charles F. Kettering, > inventor and engineer (1876-1958) > _______________________________________________ > Sprinklerforum mailing list > [email protected] > > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org > > _______________________________________________ > Sprinklerforum mailing list > [email protected] > > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org > -- Ron Greenman Instructor Fire Protection Engineering Technology Bates Technical College 1101 So. Yakima Ave. Tacoma, WA 98405 [email protected] http://www.bates.ctc.edu/fireprotection/ 253.680.7346 253.576.9700 (cell) Member: ASEE, SFPE, ASCET, NFPA, AFSA, NFSA, AFAA, NIBS, WSAFM, WFC, WFSC They are happy men whose natures sort with their vocations. -Francis Bacon, essayist, philosopher, and statesman (1561-1626) A problem well stated is a problem half solved. -Charles F. Kettering, inventor and engineer (1876-1958) _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
