【摘要】 应用现行规范当量标准轴次的换算方法,并采用以弯沉等效的原则,进行非标准载荷作用次数与标准载荷作用次数的换算.计算得出的当量轴载作用的次数与实际路面工作状态差距较大.笔者应用有限元分析软件Ansys作为工作平台,引入了损伤力学的基本思想,按路面材料疲劳损伤准则,探讨了适用于沥青混凝土路面的当量轴次换算方法新公式,并对该公式与规范[1]按弯沉等效推荐的当量轴次换算公式进行了比较,客观地从当量轴次换算方法上揭示了沥青混凝土路面早期破损现象.更多还原

【Abstract】 Present conversion method of equivalent standard axle frequency and deflection equivalent principle have been employed. The equivalent standard axle effecting frequency obtained with deflection equivalent principle can not reflect the actual working condition. Basic theories of damage mechanics have been introduced based on finite element analysis software Ansys. New conversion method of equivalent standard axle of nonstandard axle is induced according to damage mechanics index of pavement material. Also, the function reliability is compared with the code function of asphalt concrete pavement, the results of which explain the initial failure phenomena of asphalt concrete pavement.更多还原