Movable detection robot for flexible building structure

A movable detection robot for a flexible building structure comprises two moving sensing nodes, a flexible steel belt and an acceleration sensor used for achieving vibration detection on the to-be-detected building structure. The two moving sensing nodes are fixedly connected through the flexible steel belt. After the two moving sensing nodes move in the opposite directions, the flexible steel belt is in a downwards-concaved shape, and the lowest downwards-concaved point is close to and is attached to a steel belt on the surface of the to-be-detected building structure. The acceleration sensor is arranged on the bottom face of the flexible steel belt and located at the lowest downwards-concaved position. Each moving sensing node comprises a frame and two magnetic wheels, wherein the two magnetic wheels are arranged on the two sides of the frame and used for being connected with a walking drive device used for driving the magnetic wheels to rotate. Each frame is provided with a wireless communication unit. The