He answered it perfectly, Mark. He deals with this kind of issue
every single day, as I do.
His answer was right out of the book, as was the notation on the drop
ceilings.
Pay attention to him, he wouldn't lie to you.
Ken Wagoner, SET
760.745.6181 voice
760.745.0537 fax
http://www.parsleyconsulting.com
On 10/21/2013 6:20 PM, Mark A. Sornsin, P.E. wrote:
Ken - are you out there? I don't think Steve really answered my question....
Mark A. Sornsin, P.E. | Karges-Faulconbridge, Inc. | Fire Protection Engineer |
Fargo, ND | direct: 701.552.9905 | mobile: 701.371.5759 |
http://www.kfiengineers.com
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Steve
Leyton
Sent: Monday, October 21, 2013 1:06 PM
To: [email protected]
Subject: RE: NFPA 13 '10 9.3.6 BL Restraint
Because in EQ land there's stuff going on in the Building Code and ASCE 7 that you
unwashed people in non-EQ land can't see. Like, you either have to use a swing joint or
flexible hose connection on your pendent drops to lay-in tile ceilings that aren't
rigidly braced, or provide an oversized hole in the ceiling tile to prevent damage to the
sprinkler. (For those who have never seen them, "filler" rings are available
to enclose the annular space in these holes, which are larger diameter than the
escutcheons. And they look like crap.) It is intended that there be some measure of
movement in the drop piping that is independent of the main and branch piping, which are
hung and braced and restrained to the roof or floor assembly above.
Steve Leyton
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Mark A.
Sornsin, P.E.
Sent: Monday, October 21, 2013 10:54 AM
To: [email protected]
Subject: RE: NFPA 13 '10 9.3.6 BL Restraint
Well... I guess a Ken Wagoner power point hand-out will work.
But I think the real question hidden in Chris' original query is why? Why is an
8' arm-over not required to be restrained in EQ land, but an 8' branch line
with two heads on it would be? Does one NOT see the movements in an earthquake
that the other would? Or is it just an oversight in the rule making process?
Mark A. Sornsin, P.E. | Karges-Faulconbridge, Inc. | Fire Protection Engineer |
Fargo, ND | direct: 701.552.9905 | mobile: 701.371.5759 |
http://www.kfiengineers.com
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