Based on the non-linear finite element analysis,this paper conducts optimization design of the seismic performance of highway bridges.Firstly,the non-linear finite element model of steel truss flexible arch bridge is established,and the displacement response analysis of its seismic performance is carried out.The analysis results show that the displacements of the arch rib and the main truss are large under the longitudinal and transverse seismic combinations,but the overall seismic performance is good and is mainly controlled by the transverse seismic combination.
highway bridgeseismic performancenon-linear finite element analysis
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