混凝土路面温度翘曲应力的有限元分析  

Finite Element Analysis of Temperature Warping Stress of Concrete Pavement

作　　者：潘鹏志[1] 周志光[1] 晏石林[1] 李新平[1] 

机构地区：[1]武汉理工大学

出　　处：《武汉理工大学学报》2002年第11期39-41,56,共4页Journal of Wuhan University of Technology

基　　金：湖北襄荆高速公路管理局资助项目

摘　　要：以襄荆高速公路建设为背景 ,分别采用 Winkler地基和弹性半空间地基 2种计算模型 ,以及考虑冬季和夏季 2种环境温度的作用 ,用有限元方法对混凝土路面进行温度翘曲应力分析和变形分析 ,其结果表明 ,环境温度变化引起的路面应力不容忽视 ,基础的处理对计算结果有一定的影响 ,按 Winkler地基模型计算的变形结果小于按弹性半空间地基模型的变形结果 ,而按In this paper, based on the background of the construction of the Xiang Jing highway, the FEM is adopted to analyze the temperature warping stress and the distortion of concrete pavement by using two models of Winkler foundation and elastic semi space foundation respectively, as well as the effect of temperature in winter and summer. The results show that the pavement stress resulting from the change of environment temperature can't be neglected and the foundation disposal has some effects on the calculation results. The distortion result obtained from Winkler model is less than that from elastic semi space model, while the temperature warping stress obtained from Winkler model is higher than that from elastic semi space model.

关 键 词：有限元分析 混凝土路面 WINKLER地基 弹性半空间地基 温度翘曲应力 计算模型 

分 类 号：U416.216[交通运输工程—道路与铁道工程]