半刚性基层沥青路面结构温度场分析  

The analysis of temperature field in semi-rigid base asphalt pavement

作　　者：元松 熊军[2] 

机构地区：[1]上海市市政规划设计研究院,上海200031 [2]天津市市政工程设计研究院,天津410076

出　　处：《上海公路》2012年第3期17-20,12,共4页Shanghai Highways

摘　　要：关于沥青路面温度场分析研究众多,但由于理论形式过于复杂,至今实际应用较少。假定路面结构为均质半无限体,采用正弦函数形式表征路表温度变化,推导简化了日变化与年变化条件下沥青面层与半刚性基层平均温度和变温振幅的计算公式;并给出了相位差的回归公式,为计算半刚性基层沥青路面结构温度应力、分析半刚性基层沥青路面结构的温缩机理提供了方便。There are many studies about temperature field in asphalt pavement,but which is less actually used up to now for the complex theorotical program.Simplified the pavement structure as homogeneous semi-infinite body,the sinusoidal function form is used to express the variation of pavement temperature.Under the condition of daily or annual temperature variation,the formula of average temperature and temperature-change amplitude in asphalt pavement and semi-rigid base is deduced.Moreover,the recession formula for hysteresis of transformation is given.It can afford the theoretical reference to calculation of thermal stress and analysis of temperature shrinkage mechanism in semi-rigid base asphalt pavement structure.

关 键 词：道路工程 温度场 变温振幅 相位差 

分 类 号：U416.217[交通运输工程—道路与铁道工程]