Research Article

Nonlinear Parametric Resonance Behavior of Cables in a Long Cantilever Bridge for Sightseeing Platform

Figure 9

The peak amplitude at midspan of the cable with different excitation amplitudes and different damping ratios (working condition III). 0.1%, 0.5%, 1.0%, and 2.5% are the damping ratios; 0 m and 0.3 m are the initial conditions. (a) ωb/ω1 ≈ 0.502. (b) ωb/ω1 ≈ 1.04. (c) ωb/ω1 ≈ 2.04.
(a)
(b)
(c)