Abstract
The experimental study is carried out, in which the full-scale models using the perfobond rib shear connectors and the angle shear connectors are used, in order to investigate the mechanical behavior of the shear connectors including the headed studs. From the experimental results, the fundamental properties of these shear connectors are cleared, that is the strain of the shear connectors, the quantity of the opening between concrete slab and steel girder, the shear failure mechanism of the concrete slabs and so on.