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

Table 3

Measurement result of geometric parameters of XingLinBao bridge.

Bridge components	Items	Design value (m)	Point cloud measurement value (m)	Deviation (mm)
Main beam	Bridge length	217.000	216.988	12.0
	Bridge width	21.240	21.235	5.0
	Bridge height	2.500	2.515	15
	Cross slope	2.000%	1.75%	0.25%
Main tower	Tower height	38.000	38.008	8.0
	Verticality	0.000	0.004	4.0
	Elevation of the top of bridge tower	1136.389	1136.371	18.0