The Research on Obtaining the Geometric Dimension of Cable-Stayed Bridges Based on 3D Laser Scanning

The traditional manual measurement methods are time-consuming and error-prone when they used for cable-stayed bridges’ geometric dimensions acquisition. They always limited by various adverse conditions such as large bridge spans, the high height of towers, more risk operation, many other unpredictable factors. In contrast, three-dimensional (3D) laser scanning technology is extremely useful solving above problems. After obtaining plenty point cloud data models, precise accurate bridges can be obtained accurately conveniently. Taking a named XingLinBao an example, accuracy convenience 3D verified.