| 高速列车作用在跨线天桥上风压力的数值模拟 |
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| 引用本文： | 雷波,刘应清.高速列车作用在跨线天桥上风压力的数值模拟[J].西南交通大学学报,1999,34(3):259-263. |
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| 作者姓名： | 雷波 刘应清 |
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| 作者单位： | 西南交通大学,机械工程学院,成都,610031 |
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| 基金项目： | 国家科技攻关项目，95-411-02-01， |
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| 摘 要： | 列车风载是临近高速铁路建筑物设计和确定相关建筑限界必须考虑的重要问题.采用三维不可压缩势流模型和面元法,对高速列车通过时作用在跨线天桥表面上的气动压力进行了数值计算.结果表明,高速列车通过时跨线天桥表面受到空气压力波的作用,压力系数的波动范围为-0.135～0.095.文中还分析了跨线天桥上压力分布的基本特征.
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| 关 键 词： | 高速列车 数值模拟 跨线天桥 气动压力 |
| 修稿时间： | 1998-12-17 |
Simulation of Pressure on Overline Bridge Due to High-Speed Train Passage |
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| Lei Bo,Liu Yingqing.Simulation of Pressure on Overline Bridge Due to High-Speed Train Passage[J].Journal of Southwest Jiaotong University,1999,34(3):259-263. |
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| Authors: | Lei Bo Liu Yingqing |
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| Abstract: | It is necessary to predict the
aerodynamic load on buildings near the track due to high-speed train passage for designing
these buildings and determining their limit. In this paper, a numerical computation of
pressure on overline bridge surface by a high-speed train head is carried out with 3D
Panel method. Results of the computations show that on overline bridge a pressure pulse
occurs while a train passes. the coefficients of the pressure pulse range from-0.135 to
0.095. The features of pressure distribution on overline bridge are discussed. |
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