| 考虑流固耦合作用的双槽渡槽地震响应分析 |
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| 引用本文： | 徐建国,范寅初.考虑流固耦合作用的双槽渡槽地震响应分析[J].人民黄河,2012(3):95-97,100. |
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| 作者姓名： | 徐建国 范寅初 |
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| 作者单位： | 郑州大学水利与环境学院 |
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| 基金项目： | 中国博士后科学基金资助项目(20100471008);河南省重点科技攻关项目(102102310078) |
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| 摘 要： | 为研究考虑流固耦合的大型双槽渡槽结构动力响应特性,采用空间8节点非协调元,基于流固耦合动力相互作用理论及弹性理论推导计算公式,编制了有限元计算程序。对南水北调中线双洎河渡槽的典型三跨进行了模态分析和地震时程响应计算,结果表明:槽内有水将大大增加渡槽结构质量矩阵中的数值,使结构自振频率明显降低,考虑流固耦合动力作用工况较空槽工况对应的地震响应值(包括位移、速度、加速度等)大,对结构整体抗震不利。
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| 关 键 词： | 地震响应 流固耦合 动力分析 有限元 双槽渡槽 |
Finite Element Analysis of Seismic Response of Two-Span Aqueduct with Fluid-Structure Coupling |
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| XU Jian-guo,FAN Yin-chu.Finite Element Analysis of Seismic Response of Two-Span Aqueduct with Fluid-Structure Coupling[J].Yellow River,2012(3):95-97,100. |
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| Authors: | XU Jian-guo FAN Yin-chu |
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| Institution: | (School of Environment and Hydraulic Engineering,Zhengzhou University,Zhengzhou 450001,China) |
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| Abstract: | With considering the effect of fluid-structure coupling,the dynamical performance of two-span aqueduct was analyzed.The 3D 8-nodes incompatible was selected.The frequency and seismic response for the Shuangji River aqueduct in the Middle Route of the South to North Water Diverstion Project were calculated.The results showed that with the increasing of water mass increased,the frequency was decreased.The seismic response with fluid-structure coupling is bigger than that of empty aqueduct(including displacement,velocity and acceleration),and it is unfavorable for aseismic aqueduct. |
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| Keywords: | seismic response fluid-structure coupling dynamical analysis finite element method two-span aqueduct |
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