Publicações

Gordo, J.M. e Guedes Soares, C. (2013), “Experiments on three mild steel box girders of different spans under pure bending moment”, Analysis and Design of Marine Structures, Guedes Soares & Romanoff (eds.), Taylor & Francis Group, London, pp. 337-346

An experimental study is presented of three box girders made of mild steel subjected to pure bending moment with different spacing between frames. The moment curvature curves are presented, allowing for the analysis of elastic-plastic behaviour until collapse and the evaluation of the ultimate bending moment and post collapse behaviour for each experiment. The residual stress relief during loading and unloading path is also analysed. The effect of the span between transverse frames on the ultimate bending moment of the box girder is study, thus its dependence on the column slenderness of the panel under compression can be established. The results are compared with tests on similar box girders made of very high tensile steel. The effects of residual stresses on the behaviour of the box girder are analysed using a progressive collapse method for structures under longitudinal bending moment.

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