| 城市桥梁拥堵状况下车辆荷载模型及其对桥梁的影响研究 |
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| 引用本文： | 卢文良,冯德飞.城市桥梁拥堵状况下车辆荷载模型及其对桥梁的影响研究[J].科学技术与工程,2007,7(20):5438-5442. |
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| 作者姓名： | 卢文良 冯德飞 |
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| 作者单位： | 北京交通大学土木建筑工程学院,北京,100044 |
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| 基金项目： | 北京交通大学科技基金(TJJ05008)资助 |
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| 摘 要： | 通过分析城市道路的车流分布特点,分别建立了小轿车、大型客车和重型车三类车辆模型,然后依据拥堵情况拟定针对城市桥梁拥堵的车辆荷载模型。通过实例计算,比较分析桥梁在设计状态下和拥堵状态下的荷载效应。计算表明,由小轿车和重型车组成的拥堵车辆荷载产生的荷载效应可能大于城A和城B荷载产生的效应,是影响桥梁安全的一个重要因素。
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| 关 键 词： | 拥堵 城市桥梁 车辆荷载模型 荷载效应 |
| 文章编号： | 1671-1819(2007)20-5438-05 |
| 修稿时间： | 2007-07-02 |
Study on Jam Vehicle Loading Model and Its Influence for Urban Bridges |
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| LU Wen-liang,FENG De-fei.Study on Jam Vehicle Loading Model and Its Influence for Urban Bridges[J].Science Technology and Engineering,2007,7(20):5438-5442. |
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| Authors: | LU Wen-liang FENG De-fei |
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| Institution: | School of Civil Engineering and Architecture, Beijing Jiaotong University, Beijing 100044 ,P. R. China |
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| Abstract: | Through analyzing the distribution of car flow in urban road,vehicle models of car,bus and heavy vehicle are set up separately.Based on the state of jam,vehicle loading model is established.Through calculation of example,load effect under design condition and jam condition are compared.The result indicates that load effect caused by jam composed by car and heavy vehicle is greater than which caused by M-A and M-B,which affects bridge safety strongly. |
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| Keywords: | jam urban bridge vehicle loading model load effect |
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