On the flexural performance of steel beams

The well known performances of steel structures in high seismic risk regions are ensured by the attainment of an overall collapse mechanism, that is guaranteed by the ductility and energy dissipation capacities of steel members. In steel MRFs, the key parameters to take under control in order to ensure an overall ductile behaviour are the flexural overstrength and the rotation capacity. With the aim to quantify and predict the flexural capacity of steel members, and to achieve a proper classification, a wide parametrical analysis campaign, carried out by means of FE simulations, has been performed, on the basis of the previous calibration of the numerical models by means of the results of some experimental tests. A comparison between monotonic and cyclic behaviour of steel beams and the influence of loading pattern on the rotation capacity are investigated, and new empirical formulations for the rotation capacity and flexural overstrength in case of monotonic loads are proposed.

Autorentext

was born in Naples (Italy) in 1982. She graduated in Architecture in July 2007 and defended her PhD thesis in Structural Engineering in January 2012. Since November 2007 she is involved in the research activities of the Department of Constructions and Mathematical Methods at the University of Naples 'Federico II' in the field of steel structures.