摘要
依据内蒙古地区110国道(呼包段)路面结构建立ANSYS有限元分析模型,分析在不同重载作用下,路面结构层底拉应力、层底拉应变、路基顶面压应变和路表弯沉等力学特性,结果表明:随荷载的增加,各项力学指标均有所增加;荷载随着路面结构层深度的增加对结构层拉应力作用逐渐显著,在路面结构设计时,对于下面层及其以下结构层的材料应将抗拉性能作为一项重要设计指标.
Based on the asphalt pavement structure of the National Highway No.110 (Hu-Bao section) in Inner Mongolia,the ANSYS finite element analysis model was established.The mechanical indexes such as bottom layer tensile stress,bottom layer tensile strain,subgrade top surface compressive strain and the deflection on the surface of the pavement structure were analyzed under different traffic loading grades.The results show that with the increase of traffic loads,all the mechanical indexes increase and with the increase of the depth of the pavement structure layer,the influence of the load on the tensile stress of the structural layer become evident gradually.Thus,in the design of the pavement structure,the tensile properties of materials of the bottom layer and the lower structure layer should be regarded as an important design index.
作者
马建国
滑宇飞
王圣棋
MA Jian-guo;HUA Yu-fei;WANG Sheng-qi(College of Civil Engineering,Inner Mongolia University of Technology,Hohhot 010051,China;Inner Mongolia Expressway Construction Co.,Ltd.Hohhot Branch, Surrounding City Expressway Maintenance Center,Hohhot 010000,China;Guizhou Hongxin Chuangda Engineering Testing Consulting Co.,Ltd.,Guiyang 550000,China)
出处
《内蒙古工业大学学报（自然科学版）》
2019年第2期149-153,共5页
Journal of Inner Mongolia University of Technology：Natural Science Edition
基金
国家科技支撑项目(2015BAG19B02)
关键词
沥青路面
交通荷载等级
有限元模型
力学响应
asphalt pavement
traffic loading grade
finite Element Model
mechanical response
