道路陡坡对水泥混凝土路面荷载应力的影响分析

Analysis of Influence by Road Steep Slope to Cement Concrete Pavement Load Stress

以水泥混凝土路面结构为研究对象,采用三维有限元方法分析不同纵坡条件下路面结构在标准轴载作用下的应力变化。得出了板底弯拉应力、混凝土板最大主拉应力、层间剪应力与道路坡度之间的关系,探讨了水泥混凝土路面在纵坡地段的受力机理,为特殊地段路面结构设计提供参考。

Taking cement concrete pavement structure as object of research, the 3-D finite element is used to analyze variation of stress upon pavement structure under standard axle load under different longitudinal slope conditions. The relationships between slab bottom flexural - tensile stress, concrete slab max. tensile stress, interlayer shearing stress and road slope are obtained, and the strain mechanism of cement concrete pavement at longitudinal slope segment is discussed, which provides reference to design of special segment road face structure.