ABSTRACT
The paper deals with the detailed three-dimensional finite element modeling of typical beam-to-column intersection zones of composite moment resisting frames under horizontal earthquake loading. The main goal of the modeling is the understanding of the behavior of the composite beam made of a steel beam and a concrete slab under the action of a positive bending moment in an exterior beam-to-column intersection zone. The behavior is studied under monotonic loading. The studied element is clearly the longitudinal composite beam, which is chosen to dissipate the earthquake energy. The paper presents the basic modeling, its calibration on a subassembly tested experimentally and a parametric study on the influence of the presence of transverse beams, on the influence of the properties of the shear connectors and on the influence of the resistance of the slab.
