Abstract
The authors proposed a new method for shear connection between concrete and perforated steel plate using cylindrical connectors such as high strength mortal cylinder and mortal filled steel tube (MFT). Direct shear test of the connector and push-out test of perforated plate connected to concrete using the connectors were conducted. The results shows that shear capacity of mortal cylinder linearly varied with compression strength of mortal, and that of connection using MFT could be evaluated as a summation of the values of shear strength of steel tube and internal mortal cylinder. Further, secant stiffness and residual slip displacement at a shear force to the 1/3 shear capacity were close of connection with perfobond strip.