Seismic Vulnerability Evaluation of a Three-Span Continuous Beam Railway Bridge

Table 7

The arguments to the vulnerability function of different components.

Component name	With spherical steel bearing				With seismic isolated bearing
	Slight damage		Moderate damage		Slight damage		Moderate damage
	Median	Logarithmic standard deviation	Median	Logarithmic standard deviation	Median	Logarithmic standard deviation	Median	Logarithmic standard deviation
1# pier	0.73	0.453	0.88	0.453	0.57	0.326	0.69	0.326
2# pier	0.40	0.530	0.51	0.530	0.46	0.424	0.56	0.424
3# pier	0.61	0.495	0.76	0.495	0.48	0.351	0.59	0.351
4# pier	1.32	0.539	1.48	0.539	1.04	0.420	1.32	0.420
1# pier bearing	0.36	0.428	0.55	0.428	0.45	0.542	0.68	0.542
3# pier bearing	0.39	0.444	0.61	0.444	0.41	0.613	0.62	0.613
4# pier bearing	0.67	0.470	1.06	0.485	0.83	0.524	1.36	0.524