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| 行车荷载及路面结构对车辙影响的有限元分析 | |
| 引用本文： | 苏凯,孙立军,王永新,叶华成.行车荷载及路面结构对车辙影响的有限元分析[J].同济大学学报(自然科学版),2007,35(2):187-192. |
| 作者姓名： | 苏凯 孙立军 王永新 叶华成 |
| 作者单位： | 1. 同济大学,道路与交通工程教育部重点实验室,上海,200092;上海长江隧桥建设发展有限公司,上海,210209 2. 同济大学,道路与交通工程教育部重点实验室,上海,200092 3. 上海长江隧桥建设发展有限公司,上海,210209 |
| 摘 要： | 基于车辙的产生机理，采用实测轮胎接地压力，对柔性基层和半刚性路面结构内的剪应力进行三维有限元分析，结果表明，相同荷载条件下两种路面结构所受的剪应力有较大差异，水平力对剪应力亦有较大的影响；基层模量、面层厚度、面层模量对沥青层内的剪应力影响均比较显著．因此，为防治车辙，应该在路面设计时对路面结构组合类型的抗车辙能力进行充分的考虑，并严格控制超载． |
| 关 键 词： | 沥青路面 车辙 剪应力 路面结构组合 回弹模量 厚度 实测接地压力 三维有限元 |
| 文章编号： | 0253-374X（2007）02-0187-06 |
| 修稿时间： | 2006-01-09 |
Mechanics Analysis of Loads and Pavement Structure Type to Asphalt Pavement Rutting by 3D Finite Element Method |
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| SU Kai,SUN Lijun,WANG Yongxin,YE Huacheng.Mechanics Analysis of Loads and Pavement Structure Type to Asphalt Pavement Rutting by 3D Finite Element Method[J].Journal of Tongji University(Natural Science),2007,35(2):187-192. | |
| Authors: | SU Kai SUN Lijun WANG Yongxin YE Huacheng |
| Institution: | 1. Key Laboratory of Road and Traffic Engineering of the Ministry of Education, Tongji University, Shanghai 200092, China; 2. Shanghai Yangtze River Tunnel and Bridge Construction and Development Limited Corporation, Shanghai 210209, China |
| Abstract: | Measured tire-pavement contact pressure is employed to deeply analyze shear stress in flexible and semi-rigid pavement by 3D finite element method. The calculating results show that vertical contact pressures and horizontal stress as well as structure parameters including surface thickness, base and surface modulus can affect shear stress. In order to avoid rutting, pavement structure combination type should be sufficiently taken into consideration and over-loading must be prohibited. |
| Keywords: | asphalt pavement rutting shear stress pavement structure combination resilient modulus layer thickness measured tire-pavement contact pressure 3D finite element method |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |