水泥混凝土路面加铺沥青罩面层力学响应分析

摘要

通过使用通用有限元软件ABAQUS，分别建立未加铺沥青层与加铺沥青层两种结构模型，分析在车轮荷载作用下的力学响应，研究加铺层对道面结构的影响，得出结论：加铺沥青罩面层前后路表最大弯沉均出现在车轮荷载作用位置处，层底最大水平拉应力均出现在车轴中点处；增加沥青层的厚度可以减小沥青层和水泥混凝土板底的拉应力。%By using the finite element software ABAQUS,established two kinds of model,which were without asphalt overlay and with asphalt o-verlay structures,and analysed the mechanical response under wheel loads,study the influence of the overlay to the pavement structure. The con-clusions are as follows:for the pavement surface of the two kinds of model,the maximum deflection appeared in the wheel loads position,the maximum horizontal tensile stress appeared at the midpoint of axle,increased the thickness of asphalt layer could reduce the tensile stress of the asphalt layer and cement concrete slab bottom.