Enhanced fire check - Eurocode

Tekla Structural Designer
2023
Tekla Structural Designer

Enhanced fire check - Eurocode

Automatic load reduction factor calculation

The following enhancement to the Eurocode Critical Fire check for steel members was first introduced in release 2022 SP1.

The load reduction factor was previously a manual input, with a default value of 0.65. The load reduction factor can now be automatically calculated per Cl 2.4.2 of EN 1993-1-2 for each beam based on its applied load (per the main area gravity loads on the beams). Hence beams subject to additional local loads could have different load reduction factors. The new capability works as follows:

  • A new checkbox “Use user defined load reduction factor” is added to enable/ disable this new functionality as shown in the picture below:

    • When this is disabled, the load reduction factor is automatically calculated internally appropriate to the members applied loading.

    • When enabled, you can specify the load reduction factor value directly (default = 0.65) as previously.
      • (For existing models created in previous releases, the new setting will be enabled and the original user defined load reduction factor retained, so there will be no change to previous results).

Check now performed for all beam end fixities

The following enhancement to the Eurocode Critical Fire check for steel members was first introduced in release 2022 SP2.

The scope of the Fire Check is extended and is now performed for all beam end fixity conditions where previously it was restricted to simply supported end conditions only.

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