FAQ 004498 | I use automatic combinations, but some load cases are not used in the generated combinations. How can I change it?

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Question

I use automatic combinations, but some load cases are not used in the generated combinations. How can I change it?

Answer

If activating the automatic combinations in General Data, the actions, combination expressions, action combinations, and load or result combinations are created automatically. In this case, some default settings have been selected by the program developers, which apply in most cases.

By default, the following design situations with the respective combination expressions are generated:

  • ULS: Ultimate limit state for permanent or temporary situation
  • SLS: Serviceability limit state for characteristic situation
  • SLS: Serviceability limit state for frequent situation
  • SLS: Serviceability limit state for quasi-permanent situation

If load cases of the "Accidental" or "Earthquake" type have been defined, they are not considered in the preset combinations. For these load cases, it is necessary to create a new combination expression manually. You can select the appropriate design situation in the list.

Figure 01 - Creating New Combination Expression and Selecting Design Situation

Accidental load cases are only used in the "Ultimate Limit State - Accidental" or "Earthquake" expressions.

Keywords

Dlubal FAQ Combinations Automatic Accidental Earthquake Load case Load combination Design situation Frequently Asked Question FAQ about Dlubal Question and Answer about Dlubal

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  • Updated 10/05/2020

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