The pipe is in a chase as shown in the following scan I have taken from the project.
http://www.missouri.edu/~tjg9b1/chaseprofile.jpg
The next scan shows a plan view of the chase with no intermediate anchors shown on the steam lines. The circles with x's in the middle are guides, the arrows pointing perpendicular to the pipe are supports, and the arrows on the lines are direction of flow. Main anchors in the manholes are depicted by x's and expansion joints are depicted by a small bellows (although they are slip style).
http://www.missouri.edu/~tjg9b1/chaseplan.jpg
Tim Gephardt
Senior Staff Engineer
University of Missouri - Columbia
Energy Management
417 South 5th Street
Columbia, MO 65211-2030
Phone: (573) 884-9339
Fax: (573) 882-6793
-----Original Message-----
From: Paul Bowers [mailto:pbowers@pipingdesign.com]
Sent: Thursday, June 23, 2005 8:45 PM
To: steam-list@lists.cc.utexas.edu
Subject: [STM] Re: Steam line intermediate anchor
A comment from a pipingdesign.com listmember (I forwarded the original inquiry to the group).
Paul
So as to clarify this layout.... The lines enter and exit manholes where there are slip type EJs located. After leaving the side of the manhole the line is immediately buried???? Or is it in a casing pipe ??????
If the line is buried it will develop whats called and described by some as a virtual anchor... the ground will develop local plastic deformations but in essence will restrain the pipe.
A chase pipe is another matter altogether.
> From: Gephardt, Tim <gephardtt@m...>
> We have a 16", 60 psig steam line constructed in 1955, and it
was
> placed in a chase type system with slip style expansion joints in
> concrete manholes to compensate for thermal expansion.
Received on Fri Jun 24 14:11:00 2005
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