Extensive study of plastic hinges in composite steel-concrete members subjected to shear and/or bending

Danku, Gelu and Dubina, Dan (2011) Extensive study of plastic hinges in composite steel-concrete members subjected to shear and/or bending. Pollack Periodica, 6 (1). pp. 37-46. ISSN 1788-1994

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Abstract

The accuracy of concentrated plasticity models to be applied in the dissipative zones of composite steel-concrete beams in case of joints from Moment Resisting Frames (MRF), and in case of links from the Eccentric Braced Frames (EBF) is still a matter of discussion. In the current practice it is avoiding to install connectors in the expected plastic zones, and to consider a symmetric plastic hinge for the steel beam or to link only. However, since the reinforcing bars are active although the connectors have been suppressed but also due to friction contact between the concrete slab and beam or link flange, the assumption of the ‘nominal symmetric’ plastic hinge could be false.

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