动载作用下沥青路面三维力学响应有限元分析

为更好地利用沥青路面结构和提高它的耐用性、安全性,利用ANSYS7.0对采用沥青路面结构的公路进行建模,分析沥青路面结构在动载作用下的三维受力情况.通过对公路结构各个界面在动载作用下所受的竖向应力、剪应力、矢量位移、弯沉值、应力时程等的提取、整理及分析,得出沥青路面在动载受力下损伤机理等重要研究结论.同时,采用的动力分析有效地弥补了静力计算的不足,使得分析结果及研究结论更具合理性、科学性.

Finite Element Analysis of 3D Mechanical Response on Asphalt Pavement Under Dynamic Load

In order to use the asphalt pavement structure better and improve its durability and safety, a model is established by ANSYS7.0 for the highway with asphalt pavement structure. Then 3D stress of the asphalt pavement under the dynamic load is analyzed. After gathering, neatening and analyzing the stress situation of each interface of highway structure under dynamic load, such as vertical stress, shearing stress, displacement vector, deflection value, stress-time, and so on, some important research conclusions about the injury mechanism of asphalt pavement under the dynamic load can be obtained. At the same time, the dynamic analysis can make up for the lack of static calculations effectively, and can make the analysis results and research conclusions more rational and scientific.