Kyle -
One caution for you. When looking at any kind of anchor in concrete
they should be submitted with the values for "cracked concrete." One of
the many concepts I've come to understand is that over time _*all*_
concrete will have developed cracking, and any structural engineer or
plan reviewer who doesn't take that into account is not using the best
information.
As I am a TC member 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 05/07/2018 7:55 AM, Kyle.Montgomery wrote:
Now that looks promising. Thanks guys.
*From:* Sprinklerforum
[mailto:[email protected]] *On Behalf Of
*Rocci 3 Cetani
*Sent:* Monday, May 7, 2018 7:41 AM
*To:* [email protected]
*Subject:* RE: [EXTERNAL] Re: Drop In Anchors for Seismic
Was just about to recommend this one! Only one I can seem to find
that’s rated for cracked concrete, lots of help on those PT jobs there
the anchor wasn’t set correctly or changes are needed
*/Rocci Cetani III, /**CET//*
/Senior Designer/
/Water-Based Fire Protections Systems Layout, Nicet Level III/
*//*
*Northern California Fire Protection Services Inc.*
16840 Joleen Way Bldg. A
Morgan Hill, CA 93037
P-(408) 776-1580 EXT.111
F-(408) 776-1590
[email protected] <mailto:[email protected]>
www.norcalfire.com
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*From:* Sprinklerforum <[email protected]
<mailto:[email protected]>> *On Behalf Of
*cw bamford
*Sent:* Monday, May 07, 2018 7:37 AM
*To:* [email protected]
<mailto:[email protected]>
*Subject:* Re: [EXTERNAL] Re: Drop In Anchors for Seismic
Have you looked at
DeWalts
Mini-Undercut+ anchor is an internally threaded, self-undercutting
anchor designed for performance in cracked and uncracked concrete
On Mon, May 7, 2018 at 7:25 AM, Kyle.Montgomery
<[email protected] <mailto:[email protected]>> wrote:
So, what did you find, Brad? I've not had luck being able to use
drop-ins in seismic areas. Seems like there is always a roadblock
with lack of ICC report, or not being acknowledged in COLA (for
Los Angeles), or not being appropriate for 'cracked concrete'
scenarios. Did you find an avenue that allows them?
-Kyle M
-----Original Message-----
From: Sprinklerforum
[mailto:[email protected]
<mailto:[email protected]>] On Behalf
Of [email protected] <mailto:[email protected]>
Sent: Saturday, May 5, 2018 2:43 PM
To: [email protected]
<mailto:[email protected]>
Subject: [EXTERNAL] Re: Drop In Anchors for Seismic
Hello again. I found was I was looking for and it appears my fears
were unfounded -- I didn't want to go through all the calculations
satisfying 13 only to discover 'nobody makes it'.
Like the chicken / egg question -- tc members write rules /
manufacturers make things to satisfy rules.
I think with sway bracing it is egg / chicken.
Brad
Quoting [email protected] <mailto:[email protected]>:
> Hello!
>
> This is not a pressing issue.
>
> I am having trouble finding manufacturer's literature for above
subject.
> I want to know if, for example, listed for Seismic requires minimum
> 4000 psi medium concrete and minimum diameter and length to see
if I
> can eliminate some of the options in 13 for prying factor and max
> loads.
>
> Thanks,
>
> Brad
>
>
>
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