水泥路面接缝传荷能力评价新方法研究

New Evaluation Method Study on Load Transfer Efficiency of Cement Concrete Road Surface Joints

水泥路面板间传荷能力的准确性对接缝传荷失效判断有重要意义,目前要主采用接缝两侧的竖向位移比值作为评价评价水泥路面板间传荷能力的主要指标。在winkler地基上分别用位移及应力表征水泥板间的传荷关系,分析得到弹性基础上,应力能更为准确的表征板间的传荷关系,并在everfew程序计算结果上,完整的定义了用应力比值定义传荷系数。

The accuracy of load transfer efficiency between cement concrete surfaces plays a significant role on judging invalidity of joint load transfer.At the present time,vertical displacement ratios of joint both sides are employed as the main index to evaluate the load transfer efficiency of cement concrete road surface.In this article,vertical displacement and stress are used separately to indicate the load transfer between cement concrete surfaces on windkler ground.By analyzing elastic base,it is found out that the stress is more accurate to indicate the surface load transfer.Furthermore,based on everfew process calculation,methods of stress to define load transfer ratio have been fully demonstrated.