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水平地震激励下大跨度拱桥行波反应分析

DOI: 10.13197/j.eeev.2014.04.29.louml.004, PP. 29-34

Keywords: 大跨度拱桥,水平行波输入,地震反应,对称性,简化方法

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Abstract:

以某大跨公路拱桥为例,通过数值计算,讨论水平地震激励下拱桥行波反应的特点和行波波速的影响。利用拱桥结构的对称性特点,提出了叠加正、反对称半拱桥一致地震反应模拟全拱桥行波地震反应的简化计算方法,数值计算结果验证了这一计算方法具有较高的计算精度,可推广应用于较为复杂的拱桥多点输入地震反应计算问题,便于工程技术人员应用。

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