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Response Analysis of Continuous Beam Bridges in Earthquakes Based on Viscous Dampers
Pages: 50-54
Year: Issue:  5
Journal: Journal of Gansu Sciences

Keyword:  Continuous girder bridgeViscous damperDynamic time-history analysisDynamic response;
Abstract: 通过对粘滞阻尼器的力学特性及工作机理进行分析,建立了桥梁使用液体粘滞阻尼器的地震反应分析模型及方程.以某高速公路一连续梁桥为背景建立Midas有限元分析模型,采用非线性动力时程分析法进行地震响应分析,并且对不同的阻尼器布置方案进行比较分析.结果表明,粘滞阻尼器在连续梁桥的抗震设计中有优越的性能,使梁端的位移、固定墩墩底剪力和固定墩墩底的弯矩明显减小;阻尼器的布置方案对桥梁抗震性能影响较为明显.
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