Investigation of the Dynamic Performance of a Large-Span Suspension Bridge Influenced by Scouring Based on Vehicle-Bridge Coupled Vibration

Table 4

Dynamic characteristics due to the erosion depth.

Erosion depth (m)	Vertical vibration modes (Hz)		Transversal vibration modes (Hz)
	1st mode	2nd mode	1st mode	2nd mode
0.00	0.029653	0.055885	0.103040	0.334576
0.05	0.029653	0.055527	0.102807	0.334096
0.10	0.029652	0.055152	0.102556	0.333608
0.15	0.029652	0.054765	0.102289	0.333119
0.20	0.029652	0.054371	0.102007	0.332634
0.25	0.029653	0.053977	0.101714	0.332159
0.30	0.029652	0.053590	0.101410	0.331700
0.35	0.029652	0.053217	0.101110	0.331260
0.40	0.029651	0.052863	0.100800	0.330840
0.45	0.029651	0.052537	0.100510	0.330450
0.50	0.029651	0.052241	0.100230	0.330090