Steel structure detection device and detection method thereof

The invention relates to the technical field of steel structure detection, in particular to a steel structure detection device, which includes a bottom plate. Two electric telescopic rods are fixedlyinstalled at one side of the upper surface of the bottom plate; a horizontal plate is fixedly installed on the upper ends of the two electric telescopic rods; a high-energy pulsed laser is fixedly mounted at one side of the upper surface of the horizontal plate; and a mounting seat is fixedly mounted at the other side of the upper surface of the horizontal plate. A mounting rod is arranged at themiddle of the upper end of the mounting seat in threaded connection; and a spherical lens is fixedly mounted at the upper end of the mounting rod. Support rods are fixedly installed at the four corners of the upper surface of the horizontal plate; a top plate is fixedly installed at the upper ends of the four support rods; and an ultrasonic receiver is fixedly installed at the middle of the uppersurface of the top plate. A