Eurocode3 Fire Design (EN1993-1-2, 2005)
Eurocode3 Fire Design (EN1993-1-2, 2005) describes the principles, requirements and rules for the structural design of steel buildings exposed to fire. Chapter 4 is implemented.
Note: Checks are performed for I-beams, Channels, Circular and Rectangular tubes.
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Options
Fabrication Type - Rolled or Welded;
Manufacture Method - Hot Finished or Cold Formed;
Fillet - size of the fillets of the cross-sections;
Section net area - for fasteners with holes net area has to be defined;
Material Type - the buckling curve (Table 6.2) depends on the material type. Material s460 has different classification then the other types;
Uniform temperature - the uniform steel temperature Qa at time t in a cross-section which is not thermally influenced by the support. Used in Table 3.1 to calculate reduction factors for stress-strain relationship of carbon steel at elevated temperatures;
Adaption factor k1 - an adaptation factor for non-uniform temperature across the cross-section (Chapter 4.2.3.3 (7));
Adaption factor k2 - an adaptation factor for non-uniform temperature along the beam (Chapter 4.2.3.3 (8));
Factors
Partial Factor Gm0 - resistance of cross-sections whatever the class is. Recommended value by National Annex = 1.00;
Partial Factor Gm2 - resistance of cross-sections in tension to fracture. Recommended value by National Annex = 1.25;
Partial Factor Gmfi - the partial factor for the relevant material property, for the fire situation. Recommended value by National Annex = 1.00;
Eta - is used in the shear area calculations (may be taken from the National Annex). The default value is 1.2;
Yield and Tensile
Standard uses material data (Yield/Tensile) in calculations. Wizard checks if the values are defined for all materials.