Thom:
If they are not following OSHA to begin with, they aren't tying off to anything
("I've being doing this for years and haven't fallen yet").
Dave
David A. de Vries, P.E., CSP
Firetech Engineering Incorporated
--- On Fri, 4/10/09, Thom McMahon <[email protected]> wrote:
From: Thom McMahon <[email protected]>
Subject: RE: Hangers vs. structure to hang from
To: [email protected]
Date: Friday, April 10, 2009, 3:02 PM
I would give them the "Actual" weight of the water filled pipe, and just
note that your hanger materials shall be in accordance with chapter 9 NFPA
13. The structural safety factors and point loads are the structural
engineers responsibility.
Just a adjunct to your question, Why do we have to allow the weight of the
pipe + 250# (Weight of average fitter?) to our loads, when OSHA doesn't
allow tie off to anything but the structure, and that has to handle impact
loads of over 3000#? Isn't someone just as likely to tie off to a 1/2"
insulated copper water line as to our pipe, if they're not following OSHA to
begin with?
Thom McMahon, SET
Firetech, Inc.
2560 Copper Ridge Dr
P.O. Box 882136
Steamboat Springs, CO 80488
Tel: 970-879-7952
Fax: 970-879-7926
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Jessica Lutz
Sent: Friday, April 10, 2009 1:32 PM
To: [email protected]
Subject: Re: Hangers vs. structure to hang from
These are NFPA 13 guidelines I'm talking about here.
Am I reading them correctly?
Maybe I should be more specific...
I need to provide the NFPA 13 hanging requirements for them to decide how
close my hangers need to be spaced per structural terra cotta "pull tests".
I need to know which # to give them.....
is it 5x's the weight of the water-filled pipe, + 250lbs.
OR
1x water-filled pipe + 250lb.
_______________________________________________
Sprinklerforum mailing list
http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum
For Technical Assistance, send an email to: [email protected]
To Unsubscribe, send an email to:[email protected]
(Put the word unsubscribe in the subject field)
_______________________________________________
Sprinklerforum mailing list
http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum
For Technical Assistance, send an email to: [email protected]
To Unsubscribe, send an email to:[email protected]
(Put the word unsubscribe in the subject field)
