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| 路面对车辆动载响应研究 | |
| 引用本文： | 陈静,刘大维,霍炜,陈秉聪. 路面对车辆动载响应研究[J]. 农业机械学报, 2002, 33(2): 11-14 |
| 作者姓名： | 陈静 刘大维 霍炜 陈秉聪 |
| 作者单位： | 1. 吉林大学车辆工程学院,长春市,130025 2. 青岛大学车辆与交通工程研究中心,青岛市,266071 3. 青岛大学车辆与交通工程研究中心 4. 吉林大学 |
| 基金项目： | 山东省自然科学基金资助项目 (项目编号 :Q99F 11) |
| 摘 要： | 针对结构为沥青混合料面层、粒料基层和土基层的3层柔性路面体系，建立了路面在车辆动载作用下的有限元分析模型，并应用ANSYS有限元分析软件对层状路面在动载作用下路面的动态响应进行了三维有限元分析。结果表明，路面的疲劳破坏是动载引起的水平应力、横向应力和垂直应力共同作用的结果，水平应力的交变变化是使路面产生疲劳破坏的主要因素。最大水平拉应力和最大横向拉应力在沥青层底部与粒料基层的结合处产生，最大水平拉应变与最大横向拉应变在粒料基层底部与土基的结合处产生。 |
| 关 键 词： | 沥青路面 层状体系 有限元分析 动态响应 动载响应 车辆 |
| 修稿时间： | 2001-04-06 |
Response of Pavement to Vehicle Dynamic Load |
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| Chen Jing Chen Bingcong. Response of Pavement to Vehicle Dynamic Load[J]. Transactions of the Chinese Society for Agricultural Machinery, 2002, 33(2): 11-14 | |
| Authors: | Chen Jing Chen Bingcong |
| Affiliation: | Chen Jing Chen Bingcong(Jilin University) Liu Dawei Huo Wei(Qingdao University) |
| Abstract: | A 3D FEA model of layered flexible pavement, which is composed of asphalt surface, granular base and cohesive soil subgrade and subjected to a dynamic vehicle load, was built and the dynamic response of the layered pavement to moving load was analyzed using ANSYS software. The simulation results indicated that the fatigue cracking was caused by the combined action of horizontal stress, transverse stress and vertical stress of the dynamic vehicle load, and the alternate horizontal stress was the main factor of all. The maximum horizontal tensile stress and the maximum transverse tensile stress occurred at the joint between the asphalt bottom and the top of granular, the maximum horizontal tensile strain and the maximum transverse tensile strain occurred at the joint between the granular bottom and the top of soil subgrade. |
| Keywords: | Asphalt pavement Layered system Finite element analysis Dynamic response |
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