Applies To
	Product(s):	AutoPIPE
	Version(s):	All
	Environment:	N/A
	Area:	Reports
	Original Author:	Bentley Technical Support Group
	Date Logged & Current Version	Jan 2015 09.06.01.10

Problem:

How to get stress results for gravity load-case only in AutoPIPE?

Solution:

Stress results are only produced for code combinations. Depending on your piping code selected in the model, the answer to this question can be slightly different:

ASME B31.1 and B31.3 Codes:

Review the online help for these codes, "Stresses Due to Sustained Loads". The pressure term can be removed by changing the following Tools> Model Options> Results options:

i. "Include Axial, Pcase in Sustained", unchecked

ii. "Longitudinal Pressure", set to "N"

As a result of the above settings modification, only the gravity term should be calculated for GR+MaxP code combination. See the results in the "CODE COMPLIANCE" section of the output report.

Nuclear codes; NB, NC and ND:

Sustain stress is calculated by Eq. #9 for NB code, and Eq. #8 for both NC & ND codes. In all 3 codes, reviewing the equations, the pressure term is dependent upon the internal Design Pressure. To remove the pressure term from the calculation, set the Design Pressure for the entire model = 0.00.

See the results in the "PRE-VERIFICATION STRESS REPORT" section of the output report.

See Also

"Code Compliance" sub-report using Results> Output Report

Bentley AutoPIPE

External Links

Bentley Technical Support KnowledgeBase

Bentley LEARN Server

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