Device for directly testing dynamic binding performances of concrete and reinforcing steel bar under reciprocating load

The utility model relates to a device and method for directly testing dynamic binding performances of concrete and a reinforcing steel bar under the action of a reciprocating load, and belongs to the field of concrete construction. The device comprises an outer frame, a loading device and a data collecting device, wherein the loading device is arranged inside the outer frame, and the loading device is connected with the data collecting device. The device disclosed by the utility model has the characteristics of being simple in assembling process and convenient in operation, needing few apparatuses in test, performing testing on a pouring scene without a special tension tester, and being conveniently operated and repeatedly used. A test specimen is fixed on a support saddle by adopting a counterforce steel plate and a high-strength bolt and is detachable and convenient to transport; and accurate control of force and displacement can be achieved since an actuator is used for applying tensile force and pressure.