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Buckling of coped steel beams and steel beams with partial endplates

Johan Maljaars1,2, Jan W.B. Stark3 and Henri M.G.M. Steenbergen1
1 TNO Environment and Geosciences, Delft, The Netherlands
2 Faculty of Architecture, Building and Planning, Technical University of Eindhoven, Eindhoven, The Netherlands
3 Faculty of Civil Engineering and Geosciences, Delft University of Technology, Delft, The Netherlands

Copes and partial endplates influence the resistance to lateral buckling of a steel beam. In order to quantify this influence, numerical research has been carried out with validated models. Full-scale laboratory tests carried out for the validation of the numerical models are described in the Annex to this paper.
The research resulted in proposed reduction factors for the critical elastic buckling load of beams with various end connections. With the reduced elastic buckling load and the existing buckling curves the resistance of steel beams with copes and partial endplates can be determined.
Key words: lateral-torsional buckling, cope, endplate, steel, beams, buckling