Seismic Isolation Performance Analysis of Composite Rubber Bearings in Middle and Small Span Beam Bridges
The plate type rubber bearing used in middle and small span beam bridge is easy to slide under earthquake,which makes the displacement of pier and beam larger.The energy dissipation capacity and displacement capacity of composite rubber bearing are relatively high.The seismic responses of composite rubber bearing and plate rubber bearing under different working conditions are studied by pseudo-static test and finite element analysis.The results show that composite rubber bearing can effectively prevent the bearing from sliding in middle and small span beam bridges,the bending moment of the pier and the displacement of the bearing are significantly reduced.
composite rubber bearingsshock absorption and isolation performancesmall and medium-sized span beam bridge
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