Reference : Lateral-torsional buckling of unrestrained steel beams under fire conditions: Improve...
Scientific journals : Article
Engineering, computing & technology : Materials science & engineering
http://hdl.handle.net/2268/41064
Lateral-torsional buckling of unrestrained steel beams under fire conditions: Improvement of EC3 proposal
English
Vila Real, Paulo mailto [ > > ]
Lopes, Nuno mailto [> > > >]
da Silva, Luis Simoes mailto [> > > >]
Franssen, Jean-Marc mailto [Université de Liège - ULg > Département Argenco : Secteur SE > Ingénierie du feu >]
2004
Computers & Structures
Pergamon-Elsevier Science Ltd
82
1737-1744
Yes (verified by ORBi)
International
0045-7949
Oxford
[en] steel beam ; lateral-torsional buckling ; fire ; Eurocode 3 ; numerical modelling
[en] The final draft of the EN version of part 1.1 of Eurocode 3 has introduced significant changes in the evaluation of the lateral-torsional buckling resistance of unrestrained beams at room temperature that reduce the over-conservative approach of ENV 1993-1-1 in the case of non-uniform bending. Numerical modelling of the lateral-torsional buckling of steel beams at elevated temperature has shown that the beam design curve from prEN 1993-1-2 is over-conservative for loadings other than uniform bending. In line with the safety format of the lateral-torsional buckling code provisions for cold design, an alternative proposal for rolled sections or equivalent welded sections subjected to fire is presented in this paper, that addresses the issue of the influence of the loading type on the resistance of the beam, achieving better agreement with the real behaviour while maintaining safety. (C) 2004 Elsevier Ltd. All rights reserved.
Researchers ; Professionals
http://hdl.handle.net/2268/41064
10.1016/j.compstruc.2004.01.006
(C) 2004 Elsevier Ltd. All rights reserved.

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