多跨连孔双曲拱桥地震反应分析

Seismic response analysis of multi-span continuous hole and double-curved arch bridge

以某多跨连孔双曲拱桥为例,建立双曲拱桥空间梁单元有限元模型,选择3条天然地震波及1条人工波进行时程分析;对比其在E1地震作用下的分析结果与相同条件下的反应谱分析结果情况,并分析桥梁在E2地震作用下的反应,得出有益结论,从而为多跨连孔双曲拱桥地震反应分析研究奠定基础。

To take certain multi-span continuous hole and double-curved arch bridge as an example,build a space beam finite element model of double-curved arch bridge and choose three natural seismic spectrums to time-history analysis,contrast the analysis results under the action of E1 earthquake and the response spectrum analysis results under the same conditions,analyze response of the bridge under the action of E2 earthquake,it obtains beneficial conclusions.As a result,it has laid a foundation for seismic response analysis of multiple-span and continuous hole and double-curved arch bridge.