[1]顾兴宇,倪富健,董侨.AC+CRCP复合式路面温度场有限元分析[J].东南大学学报(自然科学版),2006,36(5):805-809.[doi:10.3969/j.issn.1001-0505.2006.05.025]
 Gu Xingyu,Ni Fujian,Dong Qiao.Thermal analysis for AC+CRCP composite pavement using finite element methods[J].Journal of Southeast University (Natural Science Edition),2006,36(5):805-809.[doi:10.3969/j.issn.1001-0505.2006.05.025]
点击复制

AC+CRCP复合式路面温度场有限元分析()
分享到:

《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
36
期数:
2006年第5期
页码:
805-809
栏目:
交通运输工程
出版日期:
2006-09-20

文章信息/Info

Title:
Thermal analysis for AC+CRCP composite pavement using finite element methods
作者:
顾兴宇 倪富健 董侨
东南大学交通学院, 南京 210096
Author(s):
Gu Xingyu Ni Fujian Dong Qiao
College of Transportation, Southeast University, Nanjing 210096, China
关键词:
连续配筋水泥混凝土路面 沥青面层 复合式路面 热分析 临界厚度
Keywords:
CRCP asphalt overlay composite pavement thermal analysis critical thickness
分类号:
U416.216.2
DOI:
10.3969/j.issn.1001-0505.2006.05.025
摘要:
根据传热学原理,利用有限元方法分析了AC+CRCP复合式路面的瞬态温度场.共考虑了3种路表与外界热交换的形式:太阳辐射、空气对流换热和空气辐射换热.计算结果与实测值的平均误差为2.0 ℃,并表现出明显的规律性:随着深度增加,温度、温度梯度、变温速率都会出现变化幅度减小、变化相位滞后的现象; 而日温差随深度增加而减小情况可用指数函数来模拟.利用所建模型分析了复合式路面的温度场,结果表明:路表温度主要取决路表与外界环境的热交换; 相同天气情况下路面表层材料对太阳辐射吸收率的不同是导致路表温度不同的主要原因; 沥青层的临界厚度仅与沥青混合料的导热能力有关.
Abstract:
Based on the heat conduction theory, the transient thermal field of the AC(asphalt concrete)+CRCP(continuous reinforced concrete pavement)composite pavement is analyzed by using the finite element method(FEM).Three kinds of heat conduction between the pavement and its surroundings are considered, including solar radiation, air heat flow and the radiation between air and pavement. The developed FEM simulation model can predict temperature distributions at different times of various pavement layers accurately with an average absolute error of 2.0 ℃. The result shows obvious regularities: as the position deepens, the range of the temperature, thermal gradient and temperature changing velocity will decrease and the phases will be deferred; the relationship between temperature differences and the depth within a day can be described by an exponential function. The pavement thermal field was studied by using the developed model, and some conclusions are attained as follows. The surface temperature is mainly determined by the heat transfer between the pavement surface and the environment. The absorbency of surface pavement material for solar radiation is the main factor that leads to the difference between temperatures of different kind of pavement surface. Critical thickness of AC overlay is determined by the heat conductivity of asphalt mixture.

参考文献/References:

[1] 刘荣辉,钱国平,郑健龙.周期性气候条件下沥青路面温度场计算方法研究[J].长沙交通学院学报,2002,18(2):71-75.
  Liu Ronghui,Qian Guoping,Zheng Jianlong.Research on the method for calculating temperature field of asphalt pavement under the condition of recurrent natural environment[J]. Journal of Changsha Communications University,2002,18(2):71-75.(in Chinese)
[2] 胡长顺,王秉纲.复合式路面设计原理与施工技术[M].北京:人民交通出版社,1999:27-32.
[3] 姚祖康.水泥混凝土路面设计理论和方法[M].北京:人民交通出版社,2003:35-42.
[4] Minhoto Manuel J C,Pais Jorge C,Pereira Paulo A,et al.Prediction of asphalt pavement temperature using 3-D finite element method[J]. Transportation Research Record,2005,1919(184):96-110.
[5] Solaimanian M,Kennedy T W.Predicting maximum pavement surface temperature using maximum air temperature and hourly solar radiation [J].Transportation Research Record,1993,1417(72):1.
[6] 邓学钧,黄晓明.路面设计原理与方法[M].北京:人民交通出版社,2001:201-204.
[7] Hermansson A.Mathematical model for calculating pavement temperatures:comparisons of calculated and measured temperatures[J]. Transportation Research Record,2001,1764(80):180-188.
[8] 俞建荣,陈荣生.碾压水泥混凝土与沥青混凝土复合式路面中碾压水泥混凝土板的最大温度梯度[J].中国公路学报,1996,9(4):29-36.
  Yu Jiangrong,Chen Rongsheng.The maximum temperature gradient of RCC on the combined pavement of RCC and AC[J].China Journal of Highway and Transport,1996,9(4):29-36.(in Chinese)
[9] Mrawira Donath M,Luca Joseph.Thermal properties and transient temperature response of full-depth asphalt pavements [J].Transportation Research Record,2002,1809(81):160-171.

相似文献/References:

[1]黄宝涛,廖公云,张静芳.半刚性基层沥青路面层间接触临界状态值的计算方法[J].东南大学学报(自然科学版),2007,37(4):666.[doi:10.3969/j.issn.1001-0505.2007.04.024]
 Huang Baotao,Liao Gongyun,Zhang Jingfang.Analytical method of interlayer contact fettle in semi-rigid-base bituminous pavement[J].Journal of Southeast University (Natural Science Edition),2007,37(5):666.[doi:10.3969/j.issn.1001-0505.2007.04.024]
[2]王斌,杨军.移动荷载作用下连续配筋混凝土路面三维有限元分析[J].东南大学学报(自然科学版),2008,38(5):850.[doi:10.3969/j.issn.1001-0505.2008.05.021]
 Wang Bin,Yang Jun.Effects of vehicle dynamic loading on CRCP by 3D finite element method[J].Journal of Southeast University (Natural Science Edition),2008,38(5):850.[doi:10.3969/j.issn.1001-0505.2008.05.021]

备注/Memo

备注/Memo:
作者简介: 顾兴宇(1976—),男,副教授,guxingyu1976@163.com.
更新日期/Last Update: 2006-09-20