标准汽车荷载下路面层关键位置的变形及内力研究

Study on Deformation and Internal Force at Critical Position of Pavement Layer under Standard Vehicle Loading

文章通过分析有限长梁、无限长梁与路面板在标准汽车荷载下轮隙中点、轮迹中点与轮迹内外边缘点等关键位置处的弯沉、弯矩及剪力变化,探讨目前按轮隙中点处弯沉进行路面设计的适用范围及不安全性,并提出了路面设计的双指标建议。

By analyzing the deflection, bending moment and shear force variation of finite long beam, infinite long beam and pavement plate at the wheel-gap midpoint,wheel-track midpoint,and the inner and outer edge points of wheel track under the standard vehicle load, this article discussed the application scope and unsafe nature of current pavement design conducted according to the deflection at the wheel-gap midpoint,and proposed the double index suggestion for pavement design.