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Support stop to resist pipe axial load

Support stop to resist pipe axial load

Support stop to resist pipe axial load

(OP)
Can anyone point me in the right direction:
I have a 10" pipe and need to design a support stop to resist an axial load of 45981 N.
The pipe saddle I intend using is a Carpenter & Patterson Fig 384-2 which consists of two pipe clamps each 50 mm wide fitted around the pipe.

How would I calculate the required bolt torque required to provide sufficient pressure between the pipe clamp and the pipe to resist the axial load of 45981 N.

Using simple friction formula and coefficient of friction of 0.3 I have calculated that the pressure required by the pipe saddle is 3576 N/m^2.

RE: Support stop to resist pipe axial load

A simple background question.

Is the bolt on support suitable as an axial restraint? (I don't have thier catalog)  Carpenter and Patterson may be able to offer bolting guidance if the unit in question is indeed suitable.

I certainly wouldn't use a bolt on support as a line stop. To many uncertainties over the life of the piping. Remember you may not be around to ensure it is reinstalled (torqued) correctly after maintenance. Not to mention relying on friction alone does not sit as soundly as a properly welded on line stop. You are attempting to restrain 5 tons of force after all.  
 

RE: Support stop to resist pipe axial load

That's not a stop.  If the temperature of the bolts rises, maybe they lengthen just enough and the stop slips.

**********************
"Pumping accounts for 20% of the world's energy used by electric motors and 25-50% of the total electrical energy usage in certain industrial facilities."-DOE statistic (Note: Make that 99% for pipeline companies) http://virtualpipeline.spaces.live.com/

RE: Support stop to resist pipe axial load

(OP)
Thanks for your input gents, the pipe in question is specialist pipe for abrasive substances (Induction hardened UTS 600). I will use a welded support as per your recommendation; the Carpenter Patterson catalogue doesn't state if the pipe saddle is suitable for axial restraint.

I will have to look into the weld procedures for the UTS 600 pipe which state the pipe is to be liquid cooled (with a specific flow rate) whilst welding.
I'll use the clamp-on type pipe saddle for the guide further along the piping system.

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