3D terrestrial lidar for operational bridge clearance measurements

Christopher Watson; Shen-En Chen; Haitao Bian; Edd Hauser

doi:10.1117/12.880331

19 April 2011 3D terrestrial lidar for operational bridge clearance measurements

Christopher Watson, Shen-En Chen, Haitao Bian, Edd Hauser

Proceedings Volume 7983, Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2011; 79831M (2011) https://doi.org/10.1117/12.880331
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2011, San Diego, California, United States

Abstract

This paper reports the outcomes of a study of the vehicle crossing effects on terrestrial LiDAR scan on highway bridges for underclearance measurements. Ground-based or vehicle-mount terrestrial LiDAR scanners, which recreate the bridge structure as 3D point cloud of thousands of position data points, have been found to be ideal for bridge clearance measurements. To determine the effects of ambient overhead vehicle crossing and seasonal temperature variation on clearance measurements, periodic monitoring of the Harris Road Bridge has been conducted. A simplistic but practical correlation analysis is performed which shows that operational LiDAR scanning is a viable technique for bridge clearance measurements.

Citation Download Citation

Christopher Watson, Shen-En Chen, Haitao Bian, and Edd Hauser "3D terrestrial lidar for operational bridge clearance measurements", Proc. SPIE 7983, Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2011, 79831M (19 April 2011); https://doi.org/10.1117/12.880331

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