It is important to clarify the stress transfer mechanism through the contact surface between steel and concrete in steel-concrete hybrid structures. Then, we carry out the static test of the specimen which is composed of the steel plate and two concrete blocks, and investigate the bonding behavior of the contact surface under the bearing force. In this case, two different ways of applying the bearing force are examined. However, the relation between the maximum shear stress and the bearing stress as well as the relation between the shear stress and the slip does not depend on the application method of the bearing.
