Lopes, NunoVila Real, Paulo M.M.Silva, Luís SimõesPiloto, P.A.G.Franssen, J.-Marc2010-02-242010-02-2420042004Lopes, N.; Vila Real, P.M.M.; Silva, L.S; Piloto, P.A.G.; Franssen, J.-Marc (2004). New proposals for the design of steel beam-columns under fire conditions. In 3rd International Workshop “Structures in Fire”. Ottawa, Canadá.http://hdl.handle.net/10198/2146The possibility of having, in parts 1-1 and 1-2 of Eurocode 3, the same approach for the design of beam-columns and for lateral-torsional buckling, was investigated by the authors in previous papers using a numerical approach, where it was concluded that those assumptions could be made. In the present paper a new approach for lateral-torsional buckling has been used with the formulae for the design of beam-columns at elevated temperature based on prEN 1993-1-1 combined with the formulae from prEN 1993-1-2. In both cases the results obtained are much better than the current design expressions, when compared with those obtained in the numerical calculations.engSteelBeam-columnLateral-torsional-bucklingFireEurocode 3Numerical modellingconference paper2010-01-30