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

Figure 9

Change rate of the dynamic characteristics due to the erosion depth. (a) 1st mode of the vertical vibration modes; (b) 2nd mode of the vertical vibration modes; (c) 1st mode of the transversal vibration modes; (d) 2nd mode of the transversal vibration modes.

(a)

(b)

(c)

(d)