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Proceedings Paper

3D terrestrial lidar for operational bridge clearance measurements
Author(s): Christopher Watson; Shen-En Chen; Haitao Bian; Edd Hauser
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Paper 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.

Paper Details

Date Published: 19 April 2011
PDF: 14 pages
Proc. SPIE 7983, Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2011, 79831M (19 April 2011); doi: 10.1117/12.880331
Show Author Affiliations
Christopher Watson, The Univ. of North Carolina at Charlotte (United States)
Shen-En Chen, The Univ. of North Carolina at Charlotte (United States)
Haitao Bian, The Univ. of North Carolina at Charlotte (United States)
Edd Hauser, The Univ. of North Carolina at Charlotte (United States)


Published in SPIE Proceedings Vol. 7983:
Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2011
H. Felix Wu, Editor(s)

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