Research on Structural Deformation Monitoring and Analysis of Ancient Castle Buildings Using Three-Dimensional Laser Scanning Technology

Abstract

Deformation monitoring refers to the measurement that monitors the change of monitored object using measuring instrument, and determines the deformation status of the target body by recording the changes of the representative discrete points on the target body. Its main purpose is to obtain the deformation characteristics of the spatial position and shape with time and vibration, and to analyze and judge the reasons for the deformation according to the obtained data. The three-dimensional laser scanning technology is also known as the real-scene replication technology. Compared with the traditional measurement technology, the three-dimensional laser scanning technology is high-speed, non-destructive, penetrating and accurate. Taking three-dimensional laser scanning as the technical medium and Deshengmen Gate (Watchtower) as an example, this paper provides technical analysis methods and case studies for the structural deformation monitoring of ancient castle buildings.