【摘要】 采用有限元计算分析在无横向裂缝和有横向贯通裂缝两种工况条件下沥青路面的弯沉、沥青层最大拉应力和最大剪应力、半刚性层最大拉应力以及计算疲劳寿命,分析结果表明,考虑半刚性层存在横向贯通裂缝时,内部应力增加且计算疲劳寿命将大为降低。在提出高速公路沥青路面结构必要时应考虑存在裂缝的工况下进行验算。更多还原

【Abstract】 In this paper finite element analysis method(FEM) has been used to calculate and analyze asphalt pavement deflection,the maximum tensile stress and shear stress of asphalt layer,the maximum tensile stress and calculation fatigue life of semi-rigid layer in no transverse cracks and lateral cracks in two working conditions.The results show that the internal stress increases and the calculation fatigue life will be greatly reduced.In highway asphalt pavement structure design should consider structural analysis when road in crack condition.更多还原