江苏大学学报（自然科学版）2018，Vol.39Issue(2)：236-241,6.DOI:10.3969/j.issn.1671-7775.2018.02.019
考虑横向接地应力的沥青路面剪应力分析
Shear stress analysis of asphalt pavement based on transverse contact stress
摘要
Abstract
ABAQUS software was adopted to establish the model of semi-rigid pavement structure with uniaxial two-wheel load mode and each tire load simplified to five mobile non-uniform load with different stress,length and width.Compiling Dload and Utracload subroutines by Fortran program,the vertical, horizontal and transverse loads were applied.The relationship between transverse stress and pavement shear stress was analyzed.The results show that the pavement surface shear stress distribution has significant relationship with transverse stress.When the lateral friction coefficient is increased,the positive shear stress is decreased with increased negative shear stress.The location of the maximum positive shear stress is at the tire edges of both sides.The negative shear stress at intermediate load belt is increased gradually and over tire edge shear stress,and the maximum negative shear stress transfers from the edge to the middle.The lateral friction coefficient is increased linearly with different point shear stress at different asphalt pavement layer.The influence of lateral friction coefficient on surface shear stress is most obvious,while in other layers of asphalt pavement,the influence on shear stress is decreased with the increasing of depth.关键词
沥青路面/剪应力/横向接地应力/非均布荷载/荷载带Key words
asphalt pavement/shear stress/transverse stress/non-uniform load/load belt分类
交通工程引用本文复制引用
张兰峰,汪海年..考虑横向接地应力的沥青路面剪应力分析[J].江苏大学学报（自然科学版）,2018,39(2):236-241,6.基金项目
国家自然科学基金资助项目(50578016) （50578016）
