华东交通大学学报2017，Vol.34Issue(1)：61-66,6.
不同速度下制动沥青路面结构动力响应研究
Study on Dynamic Response of Asphalt Pavement Structure at Different Speeds
顾彦梁 1吴中 1沈才华 1刘泉1
作者信息
- 1. 河海大学土木与交通学院,江苏 南京 210098
- 折叠
摘要
Abstract
The finite element model of tire and pavement structure was established by Hypermesh/LS-DYNA, by which effects of the braking speed and the stiffness ratio of the upper layer and the middle surface layer on the dynamic response of the pavement structure were studied. Results show that the main effect of vehicle load on asphalt pavement surface layer is the horizontal force and vertical force in the process of braking. With the increase of the braking speed, the stress and deflection of the pavement structure also increased; with the increase of the stiffness ratio of the upper layer and the middle surface layer, the road surface deflection showed a down ward tendency. So, in frequent braking sections it is advisable to improve surface layer stiffness ratio and control braking speed to reduce the load on the pavement damage.关键词
路面结构/动力响应/制动/LS-DYNA/速度Key words
pavement structure/dynamic response/brake/LS-DYNA/speed分类
交通工程引用本文复制引用
顾彦梁,吴中,沈才华,刘泉..不同速度下制动沥青路面结构动力响应研究[J].华东交通大学学报,2017,34(1):61-66,6.
