Lopes, NunoSilva, Luís SimõesVila Real, Paulo M.M.Piloto, P.A.G.2010-02-232010-02-2320042004Lopes, N.; Silva, L.S; Vila Real, P.M.M.; Piloto, P.A.G. (2004). New proposals for the design of steel beam-columns in case of fire, including a new approach for the lateral-torsional buckling. Computers & Structures. ISSN 0045-7949. 82:17-19 p.463–14720045-7949http://hdl.handle.net/10198/2088The 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 modellingjournal article2010-01-3010.1016/j.compstruc.2004.03.042