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Randy,
I am no structural engineer. However, this sounds fine to me.
Please, have Sheldon add the detail to the drawing so that everyone will know where the hangers are to be installed.
Thanks you for your help and time in sorting this out.
Cordially,
Tim Frost, S.E.T.
Fire Sprinkler Plans Examiner
Fire Code Plans Examiner
Fire Inspector
City of Boise
tfrost@cityofboise.org
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From: Randy Knutson [mailto:Randyk@Shilosprinkler.com]
Sent: Thursday, December 12, 2013 2:06 PM
To: Tim Frost
Cc: Sheldon Gray
Subject: FW: WPS Warehouse - RFI - Hanging 8", 6", and 4" water filled pipe
Tim,
This is the response from the engineer.
Randy Knutson
Shilo Automatic Sprinkler, Inc.
From: Joe Lane [mailto:jlane@dcengineering.net]
Sent: Thursday, December 12, 2013 12:15 PM
To: Randy Knutson
Subject: RE: WPS Warehouse - RFI - Hanging 8", 6", and 4" water filled pipe
Jason & Randy,
See attached detail.
The additional load of 250# is ok and was considered using the following rational: Concentrated load was applied to any single fire sprinkler support point, but not simultaneously at all support points. This load was not assumed to act concurrently with roof live load, snow, or wind.
Attachments made within 4” of the centerline of the panel point do not require the joist to be reinforced.
Supports should be to the top chord of the joist.
Joe Lane, PE, SE
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From: Randy Knutson [mailto:Randyk@Shilosprinkler.com]
Sent: Thursday, December 12, 2013 10:50 AM
To: Joe Lane
Subject: RE: WPS Warehouse - RFI - Hanging 8", 6", and 4" water filled pipe
Joe,
The hangers are 10.5Ft O.C. +/-. There will be 2 hangers per 21ft of pipe. Top beam clamp with a retaining strap on upper chord of joist.
Attachment similar to this:
http://www.afcon.org/pipe/100.pdf
Thank you,
Randy Knutson
Shilo Automatic Sprinkler, Inc.
From: Joe Lane [mailto:jlane@dcengineering.net]
Sent: Thursday, December 12, 2013 11:28 AM
To: Jason Hibbard; Randy Knutson
Subject: RE: WPS Warehouse - RFI - Hanging 8", 6", and 4" water filled pipe
Randy,
What is the on center spacing of the piping attachment to the joist?
Joe Lane, PE, SE
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From: Jason Hibbard [mailto:jason.hibbard@steedconstruction.com]
Sent: Tuesday, December 10, 2013 2:53 PM
To: Joe Lane
Subject: FW: WPS Warehouse - RFI - Hanging 8", 6", and 4" water filled pipe
For your correspondence.
From: Randy Knutson [mailto:Randyk@Shilosprinkler.com]
Sent: Monday, December 09, 2013 5:53 PM
To: jason.hibbard@steedconstruction.com
Cc: Sheldon Gray
Subject: FW: WPS Warehouse - RFI - Hanging 8", 6", and 4" water filled pipe
Jason,
I asked City of Boise if Joe Lane’s e-mail would suffice and the Plan Reviewer had a question.
Tim’s Response is as follows:
“Can you send me a copy of detail 9/S2.22 as mentioned in the email. Mr. Lane did not mention the additional 250# required by NFPA. Can you get him to email you that this additional load has been included in his calculations? ”
Tim also sent a copy of the NFPA 13 section as it applies:
“Unless the requirements of 9.2.1.3.3 apply, sprinkler piping shall be substantially supported from the building structure, which must support the added load of the water filled pipe plus a minimum of 250 lb (114 kg) applied at the point of hanging, except where permitted by 9.2.1.1.2, 9.2.1.3.3, and 9.2.1.4.1. (Ref: NFPA 13: 9.2.1.3.1 )
(Please, see NFPA 13: A.9.2.1. for more detailed reference information.)”
For my clarification on Detail 9 of S2.22, loads within 4” of the panel points will not require additional bracing?
Can we support off of the bottom chord?
Thanks,
Randy Knutson
Shilo Automatic Sprinkler, Inc.
From: Sheldon Gray
Sent: Monday, December 09, 2013 5:02 PM
To: Randy Knutson
Subject: FW: WPS Warehouse - RFI - Hanging 8", 6", and 4" water filled pipe
From: Jason Hibbard [mailto:jason.hibbard@steedconstruc
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