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首页> 外文会议>International Conference of Architecture and Technology >Research on Spatial Seismic Response Characteristics of Super-high-pier Rigid Frame Bridges and Vibration Mitigation Control for Piers
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Research on Spatial Seismic Response Characteristics of Super-high-pier Rigid Frame Bridges and Vibration Mitigation Control for Piers

机译：超高墩刚性框架桥梁空间地震响应特性及墩振动缓解控制研究

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摘要

A survey is given for the development of rigid frame bridge with super high piers in China and the different structural characteristics are summarized between super-high-pier bridges and ordinary bridges. Based on the finite element model of a rigid frame bridge, modal analysis is carded out, and then the earthquake response of bridge is calculated respectively by spectrum method and time history method. The differences of seismic response characteristics between high piers and low piers are analyzed. Structural style's influences on seismic response of piers with different heights are compared. And the strategies on vibration mitigation for low pier are investigated. The results indicate that the characteristics of piers' earthquake response differ complicatedly, and that the low piers and high piers suffer severer response respectively under longitudinal and transverse earthquake. It's also found that changing structural style and setting bearing-damper restrainers reasonably can effectively mitigate not only the vibration of piers but also the deformation of superstructures and the shear force of bearings.
机译：提供了一项调查，以便在中国超高墩的刚性框架桥的发展，超高码头桥梁和普通桥梁之间总结了不同的结构特征。基于刚性框架桥的有限元模型，梳理模态分析，然后通过频谱法和时间历史方法分别计算桥梁的地震响应。分析了高墩和低墩之间的地震响应特性的差异。比较了结构风格对具有不同高度的码头抗震响应的影响。研究了低码头减振的策略。结果表明，桥墩的地震反应的特点很复杂，而低墩和高墩的差异分别在纵向和横地震下遭受严重的反应。还发现，改变结构风格和设置轴承阻尼器的抑制器不仅可以有效地减轻码头的振动，而且可以有效地减轻墩的振动，也可以减轻轴承的变形和轴承的剪切力。

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