New proposals for the design of steel beam-columns under fire conditions

• Author(s): Lopes, N. ; Vila Real, P.M.M. ; Silva, L.S. ; Piloto, P.A.G. ; Franssen, J.-Marc
• Date: 2004
• Persistent ID: http://hdl.handle.net/10198/2146
• Origin: Biblioteca Digital do IPB
• Subject(s): Steel; Beam-column; Lateral-torsional-buckling; Fire; Eurocode 3; Numerical modelling
• Document Type: Article
• Language: English

Description

The 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.