That's what I was always told as well. But in my early years I was yelled at
by a superintendent that I was wasting rod by hanging to the top. He wanted
it all to hang to the bottom. That was a long time ago and can't remember
the exact conversation but I do remember it had to do with panel points
also.
--
Aaron Peck, SET Fire Protection Engineering Technologist
NICET Certified NFPA Member
Skype: (202) 407-9079 Cambodia: (+855) 78700407
**Currently in Manama, Bahrain UTC/GMT +3:00 hours (8 Hours ahead of EST)**
**Bahrain Number #(+973)39605669 Skype forwards to this #**
-----Original Message-----
From: Sprinklerforum [mailto:[email protected]]
On Behalf Of Richard Carr
Sent: Thursday, January 22, 2015 2:27 PM
To: [email protected]
Subject: RE: Hanging off bottom of steel bar joists
Good advice, if you need to hang off the bottom chord, do so within 6" of
the panel point.
Richard Carr, SET
Branch Manager
Cox Fire Protection, Inc
6555 Grace Lane.
Jacksonville, Fl. 32205
[email protected]
904-781-8227
-----Original Message-----
From: Sprinklerforum [mailto:[email protected]]
On Behalf Of Travis Mack
Sent: Wednesday, January 21, 2015 5:30 PM
To: [email protected]
Subject: Re: Hanging off botom of steel bar joists
I was told by a structural engineer many years ago that joists are designed
to bear on the top and not on the bottom chord. Therefore, his opinion was
that all hanging should be from the top. Since then, I have always shot for
hanging to the top chord of a joist. NFPA 13 doesn't specify either way.
Travis Mack, SET
MFP Design, LLC
2508 E Lodgepole Drive
Gilbert, AZ 85298
480-505-9271
fax: 866-430-6107
email:[email protected]
http://www.mfpdesign.com
https://www.facebook.com/pages/MFP-Design-LLC/92218417692
Send large files to us via: https://www.hightail.com/u/MFPDesign
On 1/20/2015 9:19 AM, Gregory Lindholm wrote:
> I know there was a discussion on when you can hang off the bottom of bar
joists, but for reason, I can't get into the archives.
> Can somebody refresh my memory? (I pretty much always hang off the
> tops, but there are times when that is not reasonable possible, and am
> trying to find out if, or when, you can hang of the bottoms.) Thanks
>
> Greg Lindholm
> _______________________________________________
> 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
