Train-Bridge Dynamic Behaviour of Long-Span Asymmetrical-Stiffness Cable-Stayed Bridge

Figure 9

Key vibration mode of the bridge. (a) First-order vertical vibration mode (f = 0.261 Hz). (b) Second-order vertical vibration mode (f = 0.312 Hz). (c) Third-order vertical vibration mode (f = 0.497 Hz). (d) Fourth-order vertical vibration mode (f = 0.600 Hz). (e) First-order lateral vibration mode (f = 0.240 Hz). (f) Second-order lateral vibration mode (f = 0.643 Hz).

(a)

(b)

(c)

(d)

(e)

(f)