Simplified Fire Resistance Design According to EN 1992-1-2 for Columns (Section 5.3.2) and Beams (Section 5.6)

Technical Article on the Topic Structural Analysis Using Dlubal Software

  • Knowledge Base

Product Feature

The Concrete Design add-on provides you with the option to perform the simplified fire resistance design according to EN 1992‑1‑2 for columns (Section 5.3.2) and beams (Section 5.6).

The following design checks are available for the simplified fire resistance design:

  • Columns: Minimum cross-sectional dimensions for rectangular and circular sections according to Table 5.2a as well as Equation 5.7 for calculating time of fire exposure
  • Beams: Minimum dimensions and center distances according to Table 5.5 and Table 5.6

You can determine the internal forces for the fire resistance design according to two methods.

  • 1 Here, the internal forces of the accidental design situation are included directly into the design.
  • 2 The internal forces of the design at normal temperature are reduced by the factor Eta,fi (ηfi), then used in the fire resistance design.

Furthermore, it is possible to modify the axis distance according to Eq. 5.5.

Keywords

Fire Resistance Design Simplified Columns Beams

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