Pipe shoe / anchor / guide detail allowable forces and moments 2

[SNORGY]

Hi folks, just a quick one here.

I am tasked with (actually tasking myself with) writing an in-house set of standards for shoes, anchors and guides for both welded and non-welded (clamped-onto-pipe) pipe supports. What I want to develop is a table that lists the detail number and pipe size on the left and the allowable loads on the right. In other words, something really simple that a stress analyst can hand the piping designer with an output report so when the stress analysis loads / restraint reports are generated, the detail can be selected (either by the engineer or the designer). Does such a thing already exist in some form or should I engineer it from scratch?

 

[Gator]

Many EPC firms have allowable forces noted on the individual support detail drawings and perhaps also on the index sheet (I forget). That sounds something like what you're looking for.

If the piping routing is being done with a 3D CAD piping program, the available support points (for example rack steel) should be noted by the designer so that these locations appear in the iso sent to the stress analysis software. Then the stress engineer will select the guide/anchor/hold down and communicate it to the designer.

Different places do things slightly differently of course.

Piping Design Central

 

[SNORGY]

Hi Gator.

That's exactly what I am doing...sort of. We were in a rush and had to issue a bunch of typical support details, but there were no allowable loads associated with them. Had there been, I would have put the loads on the individual detail sheets. So, instead of delay the issuing of the fabrication details, I elected to prepare a table that is to be used in conjunction with them. The plan is, some time in future, to then re-issue the details with the loads on each sheet and discard the table.

Sometimes you're a project guy, sometimes you're a mechanical guy, sometimes you're somewhere in between - all in the name of schedule. It's a never-ending dance of compromise.

 

[pennpiper]

Snorgy,
You might try here:

http://www.pipesupports.com/products/catalogues/legacy-collection/bergen-paterson

Bergen-Paterson has tables for all kinds of pipe supports and pipe support hardware which include the "Allowable Loads".

Sometimes its possible to do all the right things and still get bad results

 

[bellowsmfg]

In the support of your schedule this has been done many times before, per pennipiper's link, in addition to guide and line-stop member member details. I do recommend though that the stress engineer selects the support based off the load. Depending on the experience of the piping designer or draftsman that this type of delegation can lead to the incorrect selection of supports and support types.

Bellows Manufacturing and Research, Inc.

https://bellowsmfg.com