| 引用本文: | 祝志文,陈伟芳,陈政清.横风中双层客车车辆的风荷载研究.[J].国防科技大学学报,2001,23(5):117-121.[点击复制] |
| ZHU Zhiwen,CHEN Weifang,CHEN Zhengqing.A Survey on Wind Loads for Double-Deck Vehicle in Cross Wind[J].Journal of National University of Defense Technology,2001,23(5):117-121[点击复制] |
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| 横风中双层客车车辆的风荷载研究 |
| 祝志文1, 陈伟芳2, 陈政清1 |
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(1.中南大学 铁道校区土木建筑学院,湖南 长沙,410075;2.国防科技大学 航天与材料工程学院，湖南 长沙 410073)
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| 摘要: |
| 数值模拟了在横向风的，不同来流攻角作用下，双层客车车辆单体、铁路24米预应力T形简支梁桥单体、双层客车车辆-24米预应力T形简支梁桥组合体、以及在不同路堤高度上双层客车车辆的气动三分力系数。研究表明，双层客车车辆在桥梁、路堤上所受风荷载均比双层客车车辆单独存在时明显增大，因而在计算双层客车车辆所受横向风荷载时，应重视桥梁、路堤对此产生的影响。 |
| 关键词: 横向风 双层客车车辆 简支梁桥 路堤 风荷载 |
| DOI： |
| 投稿日期：2001-04-04 |
| 基金项目:国家自然科学基金项目（编号：59778043）及长沙铁道学院科研基金联合资助 |
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| A Survey on Wind Loads for Double-Deck Vehicle in Cross Wind |
| ZHU Zhiwen1, CHEN Weifang2, CHEN Zhengqing1 |
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(1.College of Civil and Architectural Engineering, Centralsouth Univ.,Changsha 410075, China;2.College of Aerospace and Materials Engineering, National Univ. of Defense Technology, Changsha 410073, China)
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| Abstract: |
| Based on numerical simulation for double-deck vehicle in crosswind with different angle of attacks, it is found that the vehicle's three areodyramic coefficients become obviously large when the vehicle running on railroad 24m free supported bridge with T configure or on embankment, compared with those of considering the vehicle only. Accordingly, the affect of enlarged wind loads acting on the vehicle should be taken seriously. |
| Keywords: Double-deck vehicle Crosswind Free supported beam bridge Embankment Wind loads |
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