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Dipl.-Ing. Frank Faulstich
2024-02-23

RFEM 5 / RSTAB 8 | Accidental Design Situation

Can I also use the automatic generation of accidental combinations for fire resistance, for example?

Answer:

Many webinars and online videos explain the automatic load combination, for example, for Eurocode. An example of this can be found on YouTube.

However, due to time reasons, these webinars and videos often do not include any accidental combinations, such as those necessary for a fire situation.

Such a combination can be generated in RFEM 5 or RSTAB 8 just as easily and flexibly as the combination for the ultimate limit state (ULS) or the serviceability limit state (SLS). This generation is shown in the attached video.

In summary, the following steps are necessary (the structure and load cases are already defined):

  1. Activate the automatic generation of the combination in the General Data.
    Automatic Combination
    Automatic Combination
  2. In the "Combination Expressions" tab, select the accidental combination with psi1 or psi2 as leading.
    Accidental Combination
    Accidental Combination
  3. Ideally, create the combinations with an enveloping result combination.
  4. Select the created result combination for design in the add-on module, for example RF‑/TIMBER Pro, under the "Fire Resistance" tab.
Author

Mr. Faulstich is responsible for the quality assurance of the RFEM program and provides customer support.

Downloads
RFEM Model File
2.64 MB
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