James,
I guess I was thinking about the provisions of 9.1.1.3.1.1, and
9.1.1.3.1.2. You're correct, the building structure itself, if it's not
a shared support structure, only has to hold the weight of water filled
pipe, plus 250, per 9.2.1.3.1. No five times.
You're not wrong, I just didn't go as far as I should.
*Ken Wagoner, SET
*Parsley Consulting***
*350 West 9th Avenue, Suite 206
*Escondido, California 92025
*****Phone 760-745-6181*
Visit our website <http://www.parsleyconsulting.com/> ***
On 4/22/2015 7:53 AM, Litvak James L. wrote:
Ken,
Please correct me if I'm wrong, but I had thought that the 5x + 250#
requirement only applied to hangers certified by a registered PE as an
alternative to listed hanger components.
James Litvak
Layout Technician
VSC Fire and Security Co., Inc.
Charlotte Division
(704) 805-9764
-----Original Message-----
From: Sprinklerforum [mailto:[email protected]] On
Behalf Of Parsley Consulting
Sent: Wednesday, April 22, 2015 9:34 AM
To: [email protected]
Subject: Re: Steel brackets
Steve,
One of the concerns can be resolved fairly quickly if the bracket were
fabricated by one of the hanger manufacturers. Those devices usually have a
maximum load recommendation, and if you're not exceeding that load with the 5x
+ 250#, that would resolve the first concern.
The anchors into the CMU wall should have been installed per the
manufacturer's recommendations, and several of the major anchor companies have
very detailed instructions on how to do so (Hilti, Powers, Simpson, ITW, etc.).
As to his concerns that a CMU wall is not part of the building structure,
I'd have to say he's mistaken. A good structural engineer, perhaps the PE for
the building itself, should be able to dismiss that perspective quite easily.
Just out of curiosity, you might ask if the inspector felt that a concrete
tilt-up wall was not part of the building structure. The nature of CMU vs.
Concrete tilt-up shouldn't make the difference.
*Ken Wagoner, SET
*Parsley Consulting***
*350 West 9th Avenue, Suite 206
*Escondido, California 92025
*****Phone 760-745-6181*
Visit our website <http://www.parsleyconsulting.com/>
IMPORTANT NOTICE: This correspondence is not a Formal Interpretation issued
pursuant to NFPA Regulations. Any opinion expressed is the personal opinion of
the author and does not necessarily represent the official position of the NFPA
or its Technical Committees. In addition, this correspondence is neither
intended, nor should it be relied upon, to provide professional consultation or
services
It should be noted that the above is my opinion as a member of the NFPA
Automatic Sprinkler System Hanging and Bracing Committee in accordance with the
NFPA Regulations Governing Committee Projects and should therefore not be
considered, nor relied upon, as the official position of the NFPA or its
Committees
***
On 4/22/2015 5:21 AM, Steve Sorrell wrote:
We have a third party inspector who is questioning the use of L brackets that
we had to use to hang our piping off from a CMU block wall.
I cannot find any mention of hanging off from building walls, only hanging from
building structure in NFPA-13.
Any help would be appreciated.
Stephen J. Sorrell, CET
NICET# 77901 Level III
E mail:
[email protected]<mailto:[email protected]>
Performance Fire Protection, LLC
Corporate Office
179 Gasoline Alley - PO Box 4510
Mooresville, NC 28117
Phone: 704-663-1664 Fax: 704-663-1652 Cell : 704-309-1242
Web: www.performancefire.com<http://www.performancefire.com>
Licensed in NC, SC, VA, TN, GA, AL
"Performance on Every Level."
_______________________________________________
Sprinklerforum mailing list
[email protected]
http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkl
er.org
_______________________________________________
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
_______________________________________________
Sprinklerforum mailing list
[email protected]
http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
