Abstract
A perfobond strip is widely used as the validated shear connector in the various steel-concrete hybrid structures and many researches on the perfobond strip are also conducted and the design formula for the perfobond strip has been already proposed by some researchers. However, the shear resistance evaluated by these design formula does not successfully correlate with the experimental ones. In this research, the effect of the concrete block proportion and of the thickness of the steel plate on the shear resistance is investigated for the perfobond strip without the penetrating rebar. The fundamental experiment is also conducted to investigate the effect of the crack of the filled concrete in the perforation, interlocking action of the aggregate and the restrained force on the shear resistance of the perfobond strip, paying attention to its shear resisting mechanism. And we attempt to predict the shear resisting mechanism of the perfobond strip without the penetrating rebar. Finally, applicability of the design formula of the perfobond strip without the penetrating rebar proposed by authors to the extensive experimental data by other researchers is confirmed.