Shaking Table Tests of Curved Bridge considering Bearing Friction Sliding Isolation

Table 4

Dynamic characteristics of the model.

Acceleration amplitude (g)	Seismic model		Isolation model
	Frequency (HZ)	Damping ratio (%)	Frequency (HZ)	Damping ratio (%)
0	5.675	3.64	5.078	2.79
0.25	4.697	4.04	3.951	4.19
0.375	4.305	4.47	3.315	7.04
0.5	4.011	7.94	3.204	9.30
0.75	2.739	14.37	2.703	11.83
1	2.642	20.93	2.116	20.52