Civil buildings with steel structures

The analysed multi-storey building has a dual structural system composed of moment resisting frames and eccentrically braced frames. The presence in the link zone of two materials, among which one is heterogeneous, with very different elasticity modulus and with different behaviour at cyclic moments, leads to a poor computation control of the behaviour of all these zones. Along the links length, the concrete will not be connected by connectors to the steel beams, in order to enable only to the steel element (link) to perform the plastic hinges. Numerical testing has been performed with short links, two hypotheses, with or without reinforced concrete slabs being studied. Is to be noted that the dissipative element has not been practically loaded, the loads acting on the floor being transmitted to the link ends due to the existing secondary beams.