Steel and concrete interface slippage monitoring sensor

A steel and concrete interface slippage monitoring sensor disclosed by the present invention comprises a metal outer cover, the metal outer cover is a closed strip-shaped shell, a transversely-arranged sliding rod is vertically and slidably installed in the metal outer cover, the tail end of the sliding rod extends out of the metal outer cover, a force sensor is installed on the inner wall of the top of the metal outer cover, and the force sensor is installed on the inner wall of the top of the metal outer cover. A spring is connected between the force sensor and the sliding rod, the metal outer cover is embedded in concrete, an end opening of the metal outer cover is attached to the inner wall of a steel pipe on the outer side of the concrete, and the tail end of the sliding rod is fixedly connected with the pipe wall of the steel pipe. The conversion method for indirectly measuring the relative slip amount by using the part combined by the spring and the force sensor is more reasonable, and the measurement