Device and method for monitoring concrete structure of road or bridge in real time

The invention relates to a device and a method for monitoring the concrete structure of a road or a bridge in real time. The device comprises a container and a pipe, wherein the container is arranged in the concrete structure and is internally filled with gas; one end of the pipe is connected with the container, and the other end of the pipe extends out of the concrete structure along the horizontal direction; after the other end of the pipe extends out of the concrete structure, part of the pipe body extends along the horizontal direction, and part of pipe body extends downward vertically at the rear end of the part of the pipe body extending along the horizontal direction; a liquid column is arranged in the middle of the pipe; the liquid column is arranged in the part of the pipe vertically extending upwards; the part of the pipe vertically extending upwards is also provided with a scale lower limit and a scale upper limit.