8Ghobarah, A.,Ali, H.M.Seismic performance of highway bridges[].Engineering Structures.1988
9Hwang J S,Chiou J M,Sheng L H,et al.A refinedmodel for base isolated bridges with bi-linear hysteretic bearings[].Earthquake Spectra.1996
10Huang W H,Fenves G L,Whittaker A S,Mahin S A.Characterization of seismic isolation bearings for bridges from bi-directional testing[].Proceedings of theth World Conference on Earthquake Engineering.2000