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Definition of panel point on a bar joist

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ryano669

ryano669

Mechanical
Sep 3, 2008
37
I am designing a fire sprinkler system in a building that requires all pipe hangers to be located within 6" of a panel point on the top chord of bar joists. I understand that the "A" formed at the top is a panel point, but is the location of the vertical member at the top also considered a panel point? See link for sketch. Thank you in advance for replies.
 
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Thank you both for your quick replies. Is there some documentation in a publication that I can reference to plead my case to the general contractor / structural engineer, who is challenging this?
 
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Send them a link to this thread. :)

I am a little surprised the building's structural engineer doesn't agree that the referenced point is a panel point.

The attached photocopy from the Vulcraft (joist supplier) catalog, while not explicity stating the definition of a panel paoint, makes clear (when read in context) that Vulcraft considers these panel points.
 
 http://files.engineering.com/getfile.aspx?folder=d15b498f-4290-429d-ba5b-1c960b6c6899&file=Di450_0903041402.PDF
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Get the joist supplier/fabricator involved if the structural engineer or GC is still not in agreement with this.
 
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