Applies To Product(s): AutoPIPE, Version(s): 2004, XM, & V8i Environment: N/A Area: Analysis Subarea: Original Author: Bentley Technical Support Group The Non-linear method is a sequence of applied load cases as defined on the initial states dialog (shown above). For example, a guide support with 0.2" gap left / right, non-code combination GT1E1, is analyzed by: 1. First applying the Gravity weight load case to the system and calculating the deformation based on modeled restraints. 2. Then the thermal expansion load case (T1) is applied to the deformed model, and again a new deformation is calculated. 3. Finally, as indicated above, occasional load case E1 is applied to the deformed model, and the final deformation is calculated. When looking at the output report In the output report only look at the operating conditions (i.e. GT1E1, GT1W1, etc..) and not the individual load cases (i.e. Gr, T1, E1). The individual load case(s): A. may have displacements that are larger than a gap on a support allows or B. support may have a load in a direction of a gap. However, when the individual load cases are added in a valid combination, the results of non-linear load sequencing are correct. See Also Bentley AutoPIPE External Links Bentley Technical Support KnowledgeBase Bentley LEARN Server Comments or Corrections? Bentley's Technical Support Group requests that you please submit any comments you have on this Wiki article to the "Comments" area below. THANK YOU! Gaps/Friction/Soil
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