Joe,
when in doubt on something like this I pick up the phone and call the
manufacturer of the powder-driven stud, and ask them if they have any
information that their product can be used for that purpose.
I take note that the annex detail A.9.3.6.1(a) calls for a "5/16"
drill-in expansion anchor minimum" when attaching to cast in place
concrete, or winding a pigtail into the concrete pre-casting. Further
down A.9.3.6.1(c) seems to suggest self-tapping screws, requiring them
to be set prior to placing the concrete.
However I really believe the answer is in 9.3.7.7, which notes that if
the Wp is > 0.50 a powder-driven stud can't be used to hang the pipe
unless they're specifically listed, and to my knowledge none are so listed.
As I am a member of the hanging and bracing committee please see the
disclaimer below.
sincerely,
*Ken Wagoner, SET
*Parsley Consulting***
*350 West 9th Avenue, Suite 206
*Escondido, California 92025
*****Phone 760-745-6181*
Visit the 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 04/11/2019 7:01 AM, Joe Burtell wrote:
I question if they need to be listed at all? Other details show
staples, #8 self-tapping screws for steel, 1/4" wood eyelets, etc... I
can't imagine any of these are listed for EQ zones? Pipe EQ bracing it
is clear, they have to be listed but I don't see where fasteners for
restraint need to be?
Best regards,
*Joe Burtell, SET, CFPS*
Burtell Fire_Small
Phone | Fax | Mobile| Text _406-204-4653 <tel:++1-406-204-4653>_
116 N. 11th Street | Billings, MT 59101
Email: [email protected] <mailto:[email protected]>
Web Site: http://www.burtellfire.com <http://www.burtellfire.com/>
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On Thu, Apr 11, 2019 at 7:47 AM Travis Mack <[email protected]
<mailto:[email protected]>> wrote:
Are they listed for use in seismic applications? If so, I would
believe you are good. If they aren’t listed for use in Seismic
applications then not permitted.
Travis Mack, CFPS, CWBSP, RME-G, SET
480-505-9271
MFP Design, LLC
www.mfpdesign,com
Send large files to MFP Design via:
https://www.hightail.com/u/MFPDesign
Sent from my iPhone
On Apr 11, 2019, at 6:44 AM, Joe Burtell <[email protected]
<mailto:[email protected]>> wrote:
Are there any restrictions on using power-driven studs for
branchline restraint? In the diagram, they show what looks like a
wedge bolt anchor but I can't see where there is any size or
requirements given for fasteners used for branchline restraint.
<image.png>
Best regards,
*Joe Burtell, SET, CFPS*
Burtell Fire_Small
Phone | Fax | Mobile| Text _406-204-4653 <tel:++1-406-204-4653>_
116 N. 11th Street | Billings, MT 59101
Email: [email protected] <mailto:[email protected]>
Web Site: http://www.burtellfire.com <http://www.burtellfire.com/>
*/“/**/The bitterness of poor quality remains long after the
sweetness of low price is forgotten./**/”/*
*NOTICE:*The information contained in this e-mail transmission is
intended only for use of the individual or entity named above.
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