Effect of Material Characteristics of High Damping Rubber Bearings on Aseismic Behaviors of a Two-Span Simply Supported Beam Bridge

Table 2

Seismic responses of HDR bearings with different dampings.

Seismic responses	Direction	0 kN·s/m	20 kN·s/m	40 kN·s/m	60 kN·s/m	80 kN·s/m
Shear force (kN)	Longitudinal	293	281	271	264	257
	Transverse	258	244	234	226	221
Displacement (cm)	Longitudinal	16.19	15.30	14.45	13.68	12.94
	Transverse	13.78	12.74	11.85	11.08	10.40
Energy dissipation by deformation (kJ)	Longitudinal	27574	24681	22296	20235	18443
	Transverse	20580	17832	15595	13846	12457
Energy dissipation by damping (kJ)	Longitudinal	—	2893	5278	7339	9131
	Transverse	—	2748	4985	6734	8123