Research on Measurement Method of Concave-Convex Depth of Precast Beam End based on 3DLaser Scanning

Lin Tang*, Jianguang Xie

Department of Civil and Airport Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China

Abstract: The concave-convex depth of the superposed surface of prefabricated beams is an important factor affecting the overall mechanical propertie. In this paper, the concave-convex depth of the superposed surface of prefabricated beams is collected by point cloud data processing with the help of 3D laser scanning technology, and compared with the field measurement results. The results show that the software process overcomes the limitations in the field measurement process, the measurement results are more accurate, and can check ｏｒ even ｒｅｐｌａｃｅ the traditional method for measurement.

Keywords: Beam end superposed surface; Concave-convex depth; 3D laser scanning