Nonlinear Analysis of Cable Vibration of a Multispan Cable-Stayed Bridge under Transverse Excitation

Figure 7

Nonlinear response of the simplified model when the 𝑓_𝑏=0.1 (1974.58 kN): (a) Time history; (b) Local magnification of (a); (c) Phase portrait of the beam; (d) Phase portrait of the cable; (e) Poincare map of the beam; (f) Poincare map of the cable; (continued line beam,dashed line cable; 𝑝₁₀=0.001, 𝑝₂₀=0.032, 𝐷𝑝₁₀=0.001, 𝐷𝑝₂₀=−0.01).

(a)

(b)

(c)

(d)

(e)

(f)