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连续刚构桥顺桥向非线性地震反应研究

DOI: 10.3969/j.issn.1674-0696.2012.02.02, PP. 179-183

Keywords: 连续刚构桥,地震响应,非线性,时程分析,continuousrigidframebridge,seismicresponse,nonlinear,time-historyanalysis

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Abstract:

:?以一座大跨高墩连续刚构桥为对象,采用纤维单元,建立该桥的动力分析模型,沿顺桥方向分别输入不同类型场地上的实际地震动,计算其非线性时程响应。比较了场地条件对大跨高墩连续刚构桥地震响应的影响,指出了连续刚构桥墩高差异较大时抗震设计中应注意的问题,并讨论了轴压比对桥墩滞回性能的影响。

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