Eurocode 3 Fire Design (EN1993-1-2, 2005)

Eurocode 3 Fire Design (EN 1993-1-2, 2005) defines the methodology for assessing the structural performance of steel components exposed to fire. The implementation in SDC Verifier covers Chapter 4 of the standard and is applicable to I-beams, channels, circular and rectangular tubes.

Key configurable parameters include:

• Fabrication Type – Rolled or Welded sections
• Manufacture Method – Hot Finished or Cold Formed
• Uniform Temperature (Qa) – Used to derive temperature-dependent reduction factors (Table 3.1)
• Adaptation Factors (k₁, k₂) – Address non-uniform temperature distributions across the cross-section and along the member
• Material Type – Defines classification and applicable buckling curve (e.g., S460 steel)

Partial safety factors used in fire conditions:

• γ_M0 – For cross-sectional resistance
• γ_M2 – For tension fracture
• γ_Mfi – Specific to fire situations

The check is aligned with passive fire protection approaches and includes structural reduction under fire-exposure scenarios. Material yield and tensile properties must be defined for accurate strength degradation modeling.

Use this standard to validate whether critical structural components maintain load-bearing capacity during fire exposure, and assess compliance with European fire safety norms.