半刚性基层拉应力验算时双轴系数的分析

An Analysis of Twoaxle Coefficient when Checking Tensile Stress of Semirigid Base

应用弹性层状理论和疲劳损伤等效原理 ,考虑轴距的不同 ,计算双轴轴数系数 ,得出适用于普通载重车和超限车的双轴系数公式 ,并与国内外设计方法的取值进行比较。结果表明 :本文的计算公式方法正确 ,结果合理。但公式的实际应用还需结合野外测试进行修正。

This text, applying layerelastic theory an d fatigueequivalent theory and considering the twoaxle distance,calculates the twoaxle coefficient and elicits the twoaxle coefficient formula of twoaxle vehicle And comparisons are made with many design methods at home and abroad The results show that the twoaxle coefficient formula of twoaxle vehicle is right,but it should be modified on the base of field data