Micah,
If you're using anchors in concrete to secure hangers _*and*_ the
project has to provide seismic protection then the same conformance to
ACI355.2 is required, per 9.3.7.8. There is a requirement in 9.1.3.1
for pre- or post-installed anchors in concrete to be listed, unless the
limits of 9.1.3.2. or 9.1.3.3 are applicable.
As I am a member of the hanging and bracing committee please see the
disclaimer below.
*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 01/26/2018 7:33 AM, Micah Davis, SET wrote:
Working on my best practices for Seismic projects. Does NFPA 13
9.3.5.9.7 (“Concrete Concrete anchors shall be prequalified for
seismic applications in accordance with ACI 355.2, /Qualification of
Post-Installed Mechanical Anchors in Concrete and Commentary/, and
installed in accordance with the manufacturer’s instructions.”) apply
to anchors for standard supports for the system piping or does it only
apply to sway brace components? Section 9.3.5 applies to Sway Brace
Design, so my gut is to say it does not. I can find nothing in
section 9.1 or 9.2 that specifies prequalified anchors are required
for standard supports, but logic tells me that should be a
consideration as well. What is the opinion(s) of the forum? Should I
be trying to convince my clients to use ICC evaluated anchors for all
hangers?
*Micah Davis, SET*
NICET #124745
Water Based Systems Layout, Level IV
*Dynamic Fire Designs*
Mail: [email protected]
Mobile: 931-242-1299
www.dynamicfiredesigns.com <http://dynamicfiredesigns.com>
Dynamic Fire Designs • 13063 Count Line Rd. Box #87 • Spring Hill • FL
• 34609
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