| 多轴移动荷载下沥青路面的动态响应特性 |
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| 引用本文： | 裴建中,吴浩,陈勇,王秉纲.多轴移动荷载下沥青路面的动态响应特性[J].中国公路学报,2011(5). |
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| 作者姓名： | 裴建中 吴浩 陈勇 王秉纲 |
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| 作者单位： | 长安大学特殊地区公路工程教育部重点实验室;河南省交通运输厅;西安市政设计研究院有限公司; |
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| 基金项目： | 交通运输部科技项目(2011319812020); 教育部长江学者和创新团队发展计划项目(IRT1050); 陕西省自然科学基础研究计划重点项目(2010JZ009); 中央高校基本科研业务费专项资金项目(CHD2010JC002) |
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| 摘 要： | 为分析多轴移动荷载下沥青路面的动态响应特性,通过现场调查建立了不同轴型作用下沥青路面的三维有限元模型,分别研究了单后轴、双后轴及三后轴轴载均匀分布、三后轴车轴载不均匀分布及三后轴车前轴悬空条件下对路面的影响。结果表明:多轴车轴距大于3 m时,各轴对路面的作用相互独立,轴数的增加对路面竖向位移产生叠加作用,对路表最大剪应力及压应力影响不明显;三后轴车中轴对路面竖向位移作用最大,较前轴及后轴分别增大23.7%和18.2%,中轴及后轴对路表剪应力有一定影响,而各轴对路表最大压应力基本没有影响。研究结果显示多轴车轴载不均匀分布对路面破坏会产生较大影响。
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| 关 键 词： | 道路工程 沥青路面 数值计算 移动荷载 动态响应 有限元模型 |
Dynamic Response Characteristics of Asphalt Pavement Under Multi-axle Moving Load |
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| PEI Jian-zhong,WU Hao,CHEN Yong,WANG Bing-gang.Dynamic Response Characteristics of Asphalt Pavement Under Multi-axle Moving Load[J].China Journal of Highway and Transport,2011(5). |
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| Authors: | PEI Jian-zhong WU Hao CHEN Yong WANG Bing-gang |
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| Institution: | PEI Jian-zhong1,WU Hao2,CHEN Yong3,WANG Bing-gang1(1.Key Laboratory for Special Area Highway Engineering of Ministry of Education,Chang'an University,Xi'an 710064,Shaanxi,China,2.Department of Transport of Henan Province,Zhengzhou 450052,Henan,3.Xi'an Municipal Engineering Design & Research Institute Co.,Ltd.,Xi'an 710068,China) |
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| Abstract: | In order to analyze dynamic response characteristics of asphalt pavement under multi-axle moving load,a three-dimensional finite element model of asphalt pavement was established by field investigation.The influences of axle load with uniform distribution of single rear axle,dual rear axles and three rear axles and the axle load with non-uniform distribution of three rear axles and the three rear axles vehicles with impending front axle on pavement were studied respectively.Results show that the effect of e... |
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| Keywords: | road engineering asphalt pavement numerical calculation moving load dynamic response finite element model |
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