| 大跨高墩城市轨道交通斜拉桥车辆走行性研究 |
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| 引用本文： | 李永乐,杨怿,赵彤,姜孝伟.大跨高墩城市轨道交通斜拉桥车辆走行性研究[J].武汉理工大学学报,2011(1):90-94. |
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| 作者姓名： | 李永乐 杨怿 赵彤 姜孝伟 |
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| 作者单位： | 西南交通大学桥梁工程系; |
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| 基金项目： | 国家自然科学基金(50508036); 教育部新世纪优秀人才支持计划(NCET-06-0802); 四川省杰出青年学科带头人计划(2009-15-406) |
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| 摘 要： | 以大跨高墩城市轨道交通斜拉桥为工程背景,基于通用有限元软件ANSYS,建立空间杆系模型。计算得到了3种桥型方案在不同状态下的结构刚度,并对比分析了其刚度产生差异的原因。采用自主研发桥梁科研分析软件BAN-SYS,计算分析了不同荷载工况下的车-桥耦合系统的振动特点;同时考虑风对结构的作用,对不同风速下的风-车-桥系统进行了计算分析。研究所得结论可为方案比选及设计优化等提供依据,为类似桥梁的设计提供参考。
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| 关 键 词： | 大跨度桥 高墩 斜拉桥 结构刚度 车-桥耦合振动 风-车-桥系统 |
Running Quality of Vehicles for Long-span and High-pier Cable-stayed Bridges in Urban Rail Transit |
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| LI Yong-le,YANG Yi,ZHAO Tong,JIANG Xiao-wei.Running Quality of Vehicles for Long-span and High-pier Cable-stayed Bridges in Urban Rail Transit[J].Journal of Wuhan University of Technology,2011(1):90-94. |
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| Authors: | LI Yong-le YANG Yi ZHAO Tong JIANG Xiao-wei |
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| Affiliation: | LI Yong-le,YANG Yi,ZHAO Tong,JIANG Xiao-wei(Department of Bridge Engineering,Southwest Jiaotong University,Chengdu 610031,China) |
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| Abstract: | A long-span and high-pier cable-stayed bridge for urban rail transit is regarded as the engineering example.Based on ANSYS,the spatial beam element analysis model of bridge is built.The structural stiffness in different conditions is calculated and their differences are explored.Using self-developed software,BANSYS,the characteristics of bridge-vehicle coupling vibration system is analyzed in various load cases.Taking the effect of wind into account,the wind-vehicle-bridge system is analyzed under the diffe... |
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| Keywords: | long-span bridge high pier cable-stayed bridge structural stiffness bridge-vehicle coupling vibration wind-vehicle-bridge system |
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