Fire Resistance of Unprotected Steel Beams - Comparison between Fire Tests and Calculation Models

The paper presents results of fire resistance test of unprotected steel beams, compared with simple and advanced calculation models given in EN 1993-1-2. The comparison shows differences between temperatures recorded during tests, temperatures calculated in accordance with EN 1993-1-2 and temperatures calculated in FEM analysis. The resulting loadbearing capacity in fire situation and criteria used for its assessment in each method is also being discussed.