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Creating combinations automatically

Figure 01 - Creating combinations automatically
Combination Expressions for SLS

Figure 02 - Combination Expressions for SLS

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1 December 2017

001054

Modeling | Structure

RFEM

RSTAB

For a steel frame, I have manually created 20 load combinations with partial safety factors. The deformations, however, are to be determined without factors. I proceed as follows:

  • I copy every single LC (several load combinations cannot be copied simultaneously)
  • I set the factor to 1.0 in every LC.

Is there no easier way to do this?

Answer

For manually created load combinations with single loadings, there is, unfortunately, only the option that you described.

Alternatively, however, you can create the combinations automatically by using the General Data dialog box. As combination expressions, you can use not only the ultimate limit state, but also various design situations for the serviceability limit state: 'Characteristic', 'Frequent,' or 'Quasi-permanent'. In this way, the partial safety factors are automatically applied correctly.

Keywords

Manual Load combination Combine Partial safety factor Serviceability Deflection analysis

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