| 高墩深水大跨度连续刚构桥非一致地震响应分析 |
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| 引用本文： | 单德山,李乔.高墩深水大跨度连续刚构桥非一致地震响应分析[J].重庆交通大学学报(自然科学版),2008,27(4):499-501,605. |
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| 作者姓名： | 单德山 李乔 |
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| 作者单位： | 西南交通大学土木工程学院桥梁工程系,四川,成都610031 |
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| 摘 要： | 讨论了高墩深水大跨度连续刚构桥的地震响应分析。提出一种适用于计算深水桥墩的地震动水压力公式,在有限元模型中采用附加质量的方法计入该作用,并考虑非一致激励和桩土耦合对桥梁结构的作用,并对不考虑动水压力和考虑动水压力工况进行比较。分析表明,考虑动水压力时的地震反应内力和位移比不考虑动水压力时的地震反应内力和位移大。分析结果可以为连续刚构桥的抗震设计提供参考。
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| 关 键 词： | 连续刚构桥 地震响应分析 非一致激励 动水 桩土耦合 |
Seismic Response Analysis of Long-Span Continuous Rigid-Frame Bridge with High-Rise Piers in Deep Water under Non-uniform Seismic Excitation |
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| SHAN De-shan,LI Qiao.Seismic Response Analysis of Long-Span Continuous Rigid-Frame Bridge with High-Rise Piers in Deep Water under Non-uniform Seismic Excitation[J].Journal of Chongqing Jiaotong University,2008,27(4):499-501,605. |
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| Authors: | SHAN De-shan LI Qiao |
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| Institution: | SHAN De-shan LI Qiao (Bridge Engineering Department,School of Civil Engineering,Southwest Jiaotong University,Sichuan Chengdu 610031,China) |
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| Abstract: | The non-uniform seismic response of long-span continuous rigid-frame bridge with high-rise pier in deep water is discussed.Based on the characteristics of high-rise pier in deep water,a formula applicable to calculating seismic hydrody- namic pressure of deep water pier is worked out.And the added mass method is adopted in the finite element model to eval- uate the effect of hydrodynamic pressure during earthquakes.The non-uniform excitation and pile-soil interaction are also taken into account during the a... |
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| Keywords: | long-span continuous rigid-frame bridge seismic response non-uniform excitation dynamic water pile-soil interaction |
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