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

Abstract

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.