风-列车-大跨度悬索桥系统非线性耦合振动分析

王少钦, 马骎, 夏禾, 郭薇薇

王少钦, 马骎, 夏禾, 郭薇薇. 风-列车-大跨度悬索桥系统非线性耦合振动分析[J]. 工程力学, 2016, 33(12): 150-157. DOI: 10.6052/j.issn.1000-4750.2015.05.0370
引用本文: 王少钦, 马骎, 夏禾, 郭薇薇. 风-列车-大跨度悬索桥系统非线性耦合振动分析[J]. 工程力学, 2016, 33(12): 150-157. DOI: 10.6052/j.issn.1000-4750.2015.05.0370
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WANG Shao-qin, MA Qin, XIA He, GUO Wei-wei. NONLINEAR DYNAMIC ANALYSIS OF A WIND-TRAIN-LONG-SPAN SUSPENSION BRIDGE COUPLING SYSTEM[J]. Engineering Mechanics, 2016, 33(12): 150-157. DOI: 10.6052/j.issn.1000-4750.2015.05.0370
Citation: WANG Shao-qin, MA Qin, XIA He, GUO Wei-wei. NONLINEAR DYNAMIC ANALYSIS OF A WIND-TRAIN-LONG-SPAN SUSPENSION BRIDGE COUPLING SYSTEM[J]. Engineering Mechanics, 2016, 33(12): 150-157. DOI: 10.6052/j.issn.1000-4750.2015.05.0370
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风-列车-大跨度悬索桥系统非线性耦合振动分析

  • 1.

    北京建筑大学理学院, 北京 100044;

  • 2.

    结构风工程与城市风环境北京市重点实验室(北京交通大学), 北京 100044;

  • 3.

    中交公路规划设计院有限公司, 北京 100088;

  • 4.

    北京交通大学土木建筑工程学院, 北京 100044

基金项目: 国家自然科学基金项目（51508018，U1434205，51308034）；北京市教委科技项目（SK20160016015）；北京建筑大学博士科研启动基金项目（00331613016）
详细信息
    作者简介:

    马骎(1981-),男,山西太原人,高工,硕士,从事大跨度桥梁监测、检测加固研究(E-mail:maqin@hpdi.com.cn);夏禾(1951-),男,北京人,教授,硕士,博导,从事车桥耦合振动研究(E-mail:hxia88@163.com);郭薇薇(1976-),女,江西乐平市人,副教授,博士,从事车桥耦合振动研究(E-mail:wwguo@bucea.edu.cn).

    通讯作者:

    王少钦(1981-),女,河北辛集人,讲师,博士,从事车桥耦合振动研究(E-mail:wangsq81@163.com).

  • 中图分类号: U441.3;U448.25

NONLINEAR DYNAMIC ANALYSIS OF A WIND-TRAIN-LONG-SPAN SUSPENSION BRIDGE COUPLING SYSTEM

  • 1.

    School of Science, Beijing University of Civil Engineering and Architecture, Beijing 100044, China;

  • 2.

    Beijing's Key Laboratory of Structural Wind Engineering and Urban Wind Environment(Beijing Jiaotong University), Beijing 100044, China;

  • 3.

    CCCC Highway Consultants Co., Ltd., Beijing 100088, China;

  • 4.

    School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China

摘要

    摘要
  • 摘要: 考虑大跨度悬索桥结构的几何非线性因素，建立了风-列车-桥梁耦合系统动力分析模型。为了考虑结构大位移非线性因素的影响，在有限元建模时考虑悬索桥主缆自重垂度及缆索初始内力的作用，在动力平衡微分方程中增加了几何刚度矩阵，通过自编计算程序，研究了列车与风荷载同时作用下主跨1120 m的五峰山悬索桥设计方案的线性及非线性振动响应。计算结果表明，考虑结构的大位移非线性因素对桥梁位移及加速度时程曲线变化趋势的影响不大，但会使其响应极值减小，非线性因素对桥梁加速度产生的误差影响较大而对位移的误差影响较小。
    Abstract: A dynamic coupling model of wind-train-bridge system is established, while taking into account the geometric nonlinearity of long-span suspension bridge. The initial internal forces and the gravity-induced sag deflection of the main cables are considered when establishing the finite element model. The large displacement is calculated by adding the geometric stiffness in the dynamic equilibrium differential equations. The linear and nonlinear dynamic responses of the Wufengshan suspension bridge with a 1120 m main span are calculated using the self-written computer program. The results show that the large displacement nonlinearity of the structure does not influence the intendancy of bridge displacement and acceleration histories, but reduces the maximum values of the responses. The geometric nonlinearity influence on the bridge accelerations is more obvious than that on the displacements.
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    • 参考文献(17)
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出版历程
  • 收稿日期:  2015-05-03
  • 修回日期:  2016-03-30
  • 刊出日期:  2016-12-24

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