| 车道荷载横向分布影响下的路面车辙变形分析 |
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| 引用本文： | 汤文,孙立军.车道荷载横向分布影响下的路面车辙变形分析[J].上海公路,2011(4):14-17. |
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| 作者姓名： | 汤文 孙立军 |
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| 作者单位： | 1. 中交第二公路勘察设计研究院有限公司,武汉,430056
2. 同济大学道路与交通工程教育部重点实验室,上海,200092 |
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| 基金项目： | 国家杰出青年科学基金资助项目(50325825) |
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| 摘 要： | 采用蠕变力学方法分析了车道荷载横向分布对路面车辙变形的影响。首先利用正态分布对车道内荷载的横向分布进行简化,得到了不同车道横向分布系数下车道断面上不同位置的荷载作用次数系数。然后提出了典型路面并测定了实际温度下的路面材料的力学参数,并对计算荷载及荷载作用时间的计算方法进行了简化,最后采用有限元方法对不同横向分布系数及不同荷载作用次数下的路面车辙变形进行了计算。通过计算分析得到了不同车道荷载横向分布系数下车辙变形永久变形比及隆起系数的推荐值。
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| 关 键 词： | 车辙 横向分布系数 蠕变 永久变形比 隆起系数 |
Rutting Depth of Asphalt Pavement Influenced by Lane Load Lateral Distribution |
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| TANG Wen,SUN Lijun.Rutting Depth of Asphalt Pavement Influenced by Lane Load Lateral Distribution[J].Shanghai Highways,2011(4):14-17. |
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| Authors: | TANG Wen SUN Lijun |
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| Affiliation: | TANG Wen,SUN Lijun |
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| Abstract: | Creep mechanics was adopted to analyze the influence of different lane lateral load distribution to pavement rutting.Firstly, the lateral load distribution within the lane was simplified as normal distribution to get a different lateral distribution coefficient at different locations in one lane.Secondly,typical pavement models were set up and pavement mechanical parameters at actual temperatures were measured in circuit testing pavement.The simplified method to calculate load times was also put forward in ... |
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| Keywords: | Rutting depth load distribution index creep permanent deformation ratio upheaval index |
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