摘要
针对当前车辙等效温度计算方法的不足,提出了考虑有效温度和有效荷载作用次数的沥青混凝土路面车辙等效温度计算思路,讨论了车辙等效温度的计算参数及有效路面代表温度和有效荷载作用次数的计算方法,并根据车辙预估模型提出了车辙等效温度计算方法,以陕西省西安地区为例给出了计算实例。结果表明,不同地区的对应有效车辙温度的月份并不相同,在计算有效交通量时要同时考虑车道系数、轮迹分布系数和有效时间分布系数,西安市、黄陵市和唐山市的车辙等效温度分别为46.3℃、43.8℃和45.6℃。车辙等效温度可以作为道路设计、分析和性能预估的参数。
On the basis of the deficiencies of the current rutting equivalent temperature（RET） calculation method,the calculation thinking of RET of asphalt concrete pavement considering the effective temperature and effective load times is proposed.The calculation parameters of RET are discussed,and the calculation methods of effective representative temperature of pavement and the number of effective loading are given.According to the rutting prediction model,a new calculation method of RET is developed and corresponding case example for Xi＇an region is given.The results show that the months of rutting effective temperature for different regions are not the same,and the drive coefficient,track distribution coefficient and effective time distribution coefficient are all considered for effective traffic calculations.The calculated RET of Xi＇an City,Huangling City and Tangshan City are respectively 46.3℃、43.8℃ and 45.6℃.The RET can be used for the parameter of road design,analysis and performance prediction.
出处
《公路》
北大核心
2011年第2期6-11,共6页
Highway
基金
西部交通建设科技项目
项目编号2006-318-812-21
中央高校基本科研业务费专项基金
项目编号CHD2009JC095
关键词
道路工程
沥青混凝土路面
车辙等效温度
路面代表温度
有效荷载
计算方法
road engineering
asphalt concrete pavement
rutting equivalent temperature
effective representative temperature
effective load
calculation method
