摘要
根据沥青路面不仅具有弹性而且具有黏滞性的特点,将沥青路面简化为支撑在黏弹性地基上的黏弹性梁,建立了移动载荷作用下梁的动力学模型并求得了其解析解.通过对解析解进行数值计算,研究了车辆速度、轴载和面层黏性阻尼等主要参数对路面动力响应的影响.结果表明,沥青路面动力响应随着车辆速度的减小而增大,与轴载成线性比例增加关系,并随着面层黏性阻尼的增大而减小.
According to the viscoelastic characteristics of asphalt pavement,it is simulated by a viscoelastic beam to be supported on the viscoelastic foundation.A dynamic model is established under the vehicle s moving load,and the dynamic response analytical solution of team is deduced.By numerical calculation to the analytical solution,the influences of the dynamic response are studied on the vehicle speed,axle load and the surface viscous damping.The results show that the dynamic responses of the asphalt pavement...
出处
《郑州大学学报（理学版）》
CAS
北大核心
2009年第2期120-124,共5页
Journal of Zhengzhou University:Natural Science Edition
基金
国家西部交通建设科技资助项目
编号200531881212
关键词
解析解
黏弹性基层
黏弹性面层
动力响应
数值计算
analytical solution
viscoelastic foundation
viscoelastic pavement
dynamic response
numerical calculation
