| Applies To | |||
| Product(s): | AutoPIPE, | ||
| Version(s): | 2004, XM, & V8i | ||
| Environment: | N/A | ||
| Area: | |||
| Subarea: | |||
| Original Author: | Bentley Technical Support Group | ||
Comments, Questions, and Answers about AutoPIPE's Forces & Moments Output report :
Items #1, Question:
At a pipe end point, actually a weld neck flange (A00), I have added concentrated forces (and moments) and made it an anchor point. When I list the results for Restraint Reactions the concentrated forces are included, but when I list the results for Global Forces & Moments in the same point they are excluded. I was expecting to see the same values but
with opposite signs. Can anyone explain?
Answer: The Forces and Moments and Restraint (anchor) reports may not always agree, each report maybe looking at a different side of the cutting plane.
In AutoPIPE, Pipe forces and moments are reported at one side of the cutting plane at a point. We remove all piping from the beginning of the segment up to the point and we look at what's left of the cut. Forces acting at a point would appear in one cutting plane, but not the other. See the following online help section: Help> Contents> reference information> results interpretation> Pipe Forces and Moments: Global Option for more information.
This is a limitation of reporting one side of the cutting plane for pipe points. In AutoPIPE XM and higher we have a new Reference Point report that allows you to report forces at any side of the point you wish
In addition:
Support Report
Creates a section which lists support forces and displacements (local, and global) for each active load case and Other combination.
Restraint Report:
Creates a section which lists anchor and support forces (and moments) at restrained points for each active load case and Other combination.
Also, please see the following AutoPIPE help section:
Help > Contents> Contents> Reference Information> Results Interpretation> :
Support Forces: Hangers and V-stops
Support Deformations: Hangers and V-stops without Gaps
Support Forces for Guides and Line Stops without Gaps
Support Forces: Guides & Line Stops with Gaps & Friction
See Also
External Links
Bentley Technical Support KnowledgeBase
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