Analysis Type

Initiate pipeline design

 

The different rules against which the pipeline data is compared to determine illegal or out-of-range data and/or legal conformity can be selected here.

Design Function Analyse

Click to expand/collapseAnalyse Type: General

This is the 'default' analysis type. Results are not checked against a 'code' (set of rules).

Click to expand/collapseAnalyse Type: NEN 3650

Apart from the stresses calculated if the "general" analysis is selected, the stress components Sp and Sv are calculated according to the Dutch NEN 3650:2012 Rules for Pipelines. These stresses are expressed as unit-stresses to the specified limit stress of the pipe material. A stress classification facility is provided, showing as well the cross-sections in which yielding of the pipe material occurs.

Stress weighing factors are predefined implicitly. Load and/or partial factors for the neutral/real top soil load (SOILNB) and the optional top load (TOPLOAD) have to be specified explicitly.

The check stress Sv:pm relates to a primary membrane stress due to primary loads (force-induced loads) and the check stress Sv relates to primary + secondary stresses (wall bending stresses) due to primary + secondary loads (displacement-induced loads).

Info This option is only available if the NEN 3650 Rules Check (T0) module is present.

Warning This options is not available in the free Educational version.

Click to expand/collapseAnalyse Type: Belgian Law

In Belgium the limit states of a pipeline are set by law and in case of gas pipelines specific details are referred to the ASME-B31.8 Pipeline Code. These check criteria and performance of the checking are used if this option is selected. Also, e.g. on minimum wall thickness are checked. This module is still under construction.

Info This option is only available if the Belgian Law Rules Check (T1) module is present.

Warning This options is not available in the free Educational version.

Click to expand/collapseAnalyse Type: ASME B31.4

This option is still under development.

Warning This options is not available in the free Educational version.

Click to expand/collapseAnalyse Type: ASME B31.8

Checking on the criteria as contained in the ASME B31.8 Pipeline Code will be performed if this option is selected. The specific stress checking is based on the various criteria set for combinations of stresses.

Info This option is only available if the ASME B31.8 Rules Check (T8) module is present.

Warning This options is not available in the free Educational version.

Info All modules require the Stress (S) module.


H1003, last changed: 14/09/2016

See also:

Design function 1