RE: [Fwd: Usage of friction in supports for calculating piping stresses]

From: <Ken>
Date: Fri Dec 30 2005 - 08:45:00 EST

I understand the B31 codes to require that all piping loads be taken into account. Friction at restraints results in a load on the piping. I would not sign off on a piping analysis that does not consider the effects of friction.

Ken A. Nisly-Nagele, P.E.
Project Engineer, Mechanical
Applied Engineering Services, Inc.
7999 Knue Road
Indianapolis, IN 46250
317-585-8920

-----Original Message-----
From: PipingDesign@yahoogroups.com [mailto:PipingDesign@yahoogroups.com] On Behalf Of Paul Bowers
Sent: Thursday, December 29, 2005 5:26 PM To: PipingDesign@yahoogroups.com
Subject: [PipingDesign] [Fwd: Usage of friction in supports for calculating piping stresses]

• Original Message -------- Subject: Usage of friction in supports for calculating piping stresses Date: Wed, 28 Dec 2005 12:12:59 +0530 From: Naha Jaydeep SPEL <jaydeep.naha@siemens.com> To: <pbowers@pipingdesign.com>

Dear Paul ,

Hope you still remember me. First, here's wishing you a very merry Christmas.

We have a query regarding the usage of friction in supports during the calculation of stresses.

As far as we are aware, ASME B31.1 do not have the requirement that friction in supports should be considered for checking the stresses in the system. Hence, what do you normally advise in such cases? Do we need to condider the same in our calculations?

With best regards,

Jaydeep Naha.

Siemens AG

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