I would rather not leave it up to someone to tell me where it would be
required, what with sink holes swallowing men as they sleep, and as
the reward for a nice drive hitting the fairway (the increase in
fracing and the New Madrid fault, etc). I would rather keep it almost
as simple as planning that a fire could happen anywhere any time. I
should have put "I think" in quotes :)
Quoting Chris Born <fireph...@cox.net>:
That is a consideration, but that is one of the factors that is
evaluated to determine the seismic design category. This is not an
area that the average sprinkler contractor or designer should
generally have to deal with or determine.
As long as someone has determined the seismic design category,
preferably a licensed structural engineer, the sprinkler
contractor/designer should be clear of any determination as to
whether seismic protection is required. If its seismic design
category A or B, no seismic protection. Is required, C and above,
seismic protection is required. If C, ASCE 7 acknowledges that
compliance with NFPA 13 is adequate, D or above, I believe
determination of loads, etc., gets more involved,
Christopher Born, P.E.
Clark Nexsen
Norfolk, VA
Sent from my iPad
On Mar 14, 2013, at 11:38 PM, bcasterl...@fsc-inc.com wrote:
I think the most important factor is "Is it an essential facility",
like hospital, fire station, police station, after an event. a
warehouse would not be.
Quoting Ron Greenman <rongreen...@gmail.com>:
Hmmm, maybe just my West Coast interpretation. I've never done anything
without bracing. Bracing has always been and just got nuts when ASCE 7
based calcs got into the code. I just thought that was special West Coast
stuff applied to the generic stuff. Parochial thinking on my part.
On Thu, Mar 14, 2013 at 7:37 PM, Cahill, Christopher
<ccah...@burnsmcd.com>wrote:
Well ...
9.3 Protection of Piping Against Damage Where Subject to Earthquakes.
9.3.1* General.
9.3.1.1 Where water-based fire protection systems are required to be
protected against damage from earthquakes, the requirements of Section 9.3
shall apply, unless the requirements of 9.3.1.2 are met.
9.3.5 has the 40/80 stuff and BL's are covered in 9.3.6.
Only place I know of and you can't get to .5 and .6 until you get past
9.3.1.1. And you can only get there from IBC/ASCE 7 SDC C or higher.
I'm all ears (well technically eyes in this forum) if you have some other
sections I'm missing. Vast majority of US doesn't do any
bracing. Working
in MN I never saw one in 16 years until I started this job and work
everywhere except MN. We just did a job in Boise and none required (which
surprised me as I figured it was close enough to Yellowstone).
Chris Cahill, PE*
Senior Fire Protection Engineer, Aviation & Facilities Group
Burns & McDonnell
8201 Norman Center Drive
Bloomington, MN 55437
Phone: 952.656.3652
Fax: 952.229.2923
ccah...@burnsmcd.com
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