Sensitivity Analysis of the Influence of Structural Parameters on Dynamic Behaviour of Highly Redundant Cable-Stayed Bridges

Table 5

Comparison of natural frequencies (Hz) with changes in the transverse stiffness (𝐾_𝑧) of bearings.

𝐾𝑧	TL1	V1	V2	TL2	V3	TL3	TOW1	TOW2
𝐾𝑧=𝐾𝑥	0.067	0.216	0.270	0.14	0.367	0.238	0.342	0.434
𝐾𝑧=2𝐾𝑥	0.075	0.216	0.270	0.154	0.367	0.248	0.342	0.434
𝐾𝑧=10𝐾𝑥	0.100	0.216	0.270	0.224	0.367	0.352	0.342	0.434
𝐾𝑧=15𝐾𝑥	0.105	0.216	0.270	0.248	0.367	0.435	0.342	0.430
𝐾=∞	0.120	0.216	0.270	0.320	0.367	0.564	0.342	0.427

TOW indicates tower modes.