沥青路面最大剪应力分析

采用ABAQUS软件对典型半刚性基层沥青路面及桥面铺装层中最大剪应力影响因素及变化规律进行了计算与分析。分析表明：半刚性基层沥青路面与水泥混凝土桥面铺装层最大剪应力分布与变化规律基本一致，在相同荷载条件作用下，最大剪应力水平亦接近；最大剪应力与车辆垂直荷载和水平荷载作用呈正比关系，最大剪应力受其影响显著；最大剪应力随着面层或铺装层厚度、模量的增加而相应地变小，随着半刚性基层厚度与模量的增加而变大。以上抗剪影响因素及变化规律的研究为解决车辙问题提供了一定的理论基础。

Analysis of Maximum Shear Stress of Asphalt Pavement

Factors and variation of the maximum shear stress of the typical semi-rigid asphalt pavement and bridge deck pavement in Jiangsu were calculated and analyzed using ABAQUS software.The maximum shear stress distribution was consistent with the semi-rigid asphalt pavement and bridge deck pavement and the maximum shear stress level was close under the same load level.The maximum shear stress showed a positive correlation with the vertical and horizontal vehicle loads and was significantly affected by the loads.The maximum shear stress decreased as the pavement thickness and modulus increase,and increased as the semi-rigid base thickness and modulus increase,but the increase value was small.Thereby,these analysis above would provides an academic basis for solving the rutting problem.