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Seismic Response Analysis and Shock Absorption Control of Self-anchored Cable-stayed Suspension Bridge
Author(s): 
Pages: 945-949
Year: Issue:  5
Journal: Journal of Wuhan University of Technology(Transportation Science & Engineering)

Keyword:  自锚式斜拉-悬索协作体系桥地震响应行波效应粘滞阻尼器;
Abstract: 基于结构非一致激励地震动方程,建立空间非线性有限元模型,探讨一致输入、行波输入下结构的地震响应,分别以主梁纵向位移、塔底内力为控制目标,研究粘滞阻尼器参数变化对结构减震效果的影响.计算结果表明:地震作用下塔底顺桥向弯矩达365.12 MN·m,对自锚式斜拉-悬索协作体系桥的设计起控制作用;行波效应使得主梁跨中横向位移增大42%,横向弯矩减小14%;结构纵向位移及塔底内力在考虑行波效应后减小9%左右...
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