寒区沥青路面低温抗裂性能的力学分析

Mechanical analysis on anti-cracking performance of asphalt pavement in cold area

结合实际工程沥青路面的各项力学指标,利用有限元分析软件ABAQUS,对寒区沥青路面在温度降低过程中的温缩应力变化进行了力学分析,并以水泥混凝土路面弹性薄板理论为依据,计算得到了不同边界约束情况下随温度变化的沥青面层温缩应力,总结出了沥青面层温缩应力随路面模型的结构尺寸、温度以及边界条件等影响因素的变化规律。

Combined with the actual mechanics index of asphalt pavement engineering,finite element analysis software ABAQUS cold regions asphalt pavement thermal stress changes in the temperature decreasing process will be mechanical analysis. Cement concrete pavement elastic thin plate theory,calculated under different boundary constraints situation varies with temperature asphalt surface temperature shrinkage stresses.Summed up the asphalt surface temperature variation with compressive stress on the structure of the road surface model size,temperature and boundary conditions and the like.