Non-linear behaviour of steel-concrete composite frames with partial shear connection

The present paper deals with non-linear analysis of composite frames considering partial shear interaction and slab cracking for composite beams and beam-to-column joint flexibility. A finite element model developed by the authors has been utilised. Beam-to-column joints have been modelled according to the well-known Components Method. In addition, non-linear behaviour of steel and concrete are accounted for in the framework of the above mentioned numerical procedure and "geometrical non-linearity" have been introduced making use of the so-called "Stability Function" approach. Finally, various applications of the presented model have been carried out in order to point out the global behaviour of composite frames in terms of stress redistribution, global flexibility and stability-related aspects.