Comparative experimental study on connection property of perforated plate and corrugated perforated plate shear connectors

In order to study the connection behavior of the perforated plate and the corrugated perforated plate, which are two new types of shear connectors used for steel-concrete composite beams. By two point symmetry comparison loading experiment, then the failure modes of the two steel-concrete composite beams, the sliping of shear connectors, the mechanical properties of the throughout reinforced and resistant to uplift were studied and so on, and the difference of the connection behavior between perforated plate and corrugated perforated plate was discussed. The results showed that the trend of the interface slip of the two connectors accelerated apparently and the value of total slip was little when the load reached 55% of the ultimate load. It showed that the two kinds of connector have good connection behavior. The mechanical behavior of two connectors showed that the interface slip, the shear force of the throughout reinforced, the vertical force of the corrugated perforated plate connectors were about 50%, 30%, 50% of the perforated plate connectors. This situation suggested that the connection behavior of the corrugated perforated plate was better than the perforated plate.