|Table of Contents|

Analysis of thermal stress on asphalt pavement considering temperature heterogeneity(PDF)

长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2011年01期
Page:
1-5
Research Field:
Publishing date:
2011-02-28

Info

Title:
Analysis of thermal stress on asphalt pavement considering temperature heterogeneity
Author(s):
MA Biao;  HU Hao;  WANG Hai-nian
Key Laboratory for Special Area Highway Engineering of Ministry of Education, Chang'an University, Xi'an 710064, Shaanxi, China
Keywords:
road engineering;  asphalt pavement;  thermal stress;  heterogeneity;  initial cracking;  stress intensity factor
PACS:
U414.1
DOI:
-
Abstract:
In order to reasonably evaluate the effect of temperature on asphalt pavement structure, the thermal stress and stress intensity factor of pavement structure under different surface initial cracks length and temperatures, were calculated and analyzed using the finite element method considering temperature heterogeneity in depth of asphalt pavement and influence of temperature on the elasticity modulus of asphalt concrete. The results indicate that the thermal stress in crack significantly reduces and the thermal stress on bottom of pavement surface increases while the surface has cracks. The deeper initial crack, the lower daily average temperature and the larger temperature difference, the thermal stress on bottom of pavement surface and the stress intensity factor in crack are greater. So, under the conditions of low daily average temperature and large temperature difference along Qinghai-Tibet highway, once asphalt-concrete surface has cracks, the larger thermal stress will appear in asphalt pavement structure, and cause crack rapidly expand down. 2 tabs, 12 figs, 14 refs.

References:

[1] 郑健龙,周志刚,张起森.沥青路面抗裂设计理论与方法[M].北京:人民交通出版社,2003.
[2]Guy D,Hannele K.Cold regions pavement engineering[M].Reston:American Society of Civil Engineers,2009.
[3]巴桑顿珠,黄晓明.西藏沥青路面裂缝温度疲劳扩展寿命分析[J].东南大学学报:自然科学版,2006,36(6):1013-1017. BASANG Dun-zhu,HUANG Xiao-ming.Analysis for fatigue life of asphalt pavement temperature crack in Tibet[J].Journal of Southeast University:Natural Science Edition,2006,36(6):1013-1017.
[4]元 松,谈至明.沥青路面荷载型竖向反射裂缝疲劳断裂分析[J].同济大学学报:自然科学版,2007,35(10):1352-1357. YUAN Song,TAN Zhi-ming.Analysis of fatigue fracture on vertical reflective crack under traffic load on asphalt pavement[J].Journal of Tongji Univer-sity:Natural Science,2007,35(10):1352-1357.
[5]耿立涛,钟 阳,乔 娜.考虑材料特性随温度变化时沥青路面的温度应力[J].公路交通科技,2009,26(11):16-20. GENG Li-tao,ZHONG Yang,QIAO Na.Thermal stresses of asphalt pavement with material property dependent on temperature[J].Journal of Highway and Transportation Research and Development,2009,26(11):16-20.
[6]周庆华,沙爱民.沥青高温流变评价指标对比[J].交通运输工程学报,2008,8(1):27-30,35. ZHOU Qing-hua,SHA Ai-min.Comparison of high-temperature rheological evaluation indices for bitumen[J].Journal of Traffic and Transportation Engineering,2008,8(1):27-30,35.
[7]王 磊,胡 浩,马 骉,等.青藏公路沥青路面结构温度应力影响因素分析[J].长安大学学报:自然科学版,2010,30(4):28-33. WANG Lei,HU Hao,MA Biao,et al.Analysis of influence factor on thermal stress of asphalt pavement structure on Qinghai-Tibet highway[J].Journal of Chang'an University:Natural Science Edition,2010,30(4):28-33.
[8]锁利军,王秉纲,陈拴发.沥青路面多孔混凝土基层温度应力数值分析[J].郑州大学学报:工学版,2007,28(2):23-26. SUO Li-jun,WANG Bing-gang,CHEN Shuan-fa.Numerical analysis of thermal stress for porous concrete base in asphalt pavement[J].Journal of Zhengzhou University:Engineering Science,2007,28(2):23-26.
[9]陈拴发,郑木莲,杨 斌,等.破裂水泥混凝土路面板沥青加铺层温度应力影响因素[J].交通运输工程学报,2005,5(3):25-30. CHEN Shuan-fa,ZHENG Mu-lian,YANG Bin,et al.Thermal stress influence factors of asphalt overlay on cement concrete pavement cracking slab[J].Journal of Traffic and Transportation Engineering,2005,5(3):25-30.
[10]周生金.沥青路面荷载与温度耦合作用疲劳特性分析[D].西安:长安大学,2005.
[11]黄志义,王金昌,朱向荣.含裂缝沥青混凝土路面的粘弹性断裂分析[J].中国公路学报,2006,2(3):18-22. HUANG Zhi-yi,WANG Jin-chang,ZHU Xiang-rong.Viscoelastic fracture analysis of asphalt concrete pavement with cracks[J].China Journal of Highway and Transport,2006,2(3):18-22.
[12]贾利强.多年冻土地区沥青路面温度场研究[D].西安:长安大学,2009.
[13]郑南翔,牛思胜,许新权.重载沥青路面车辙预估的温度-轴载-轴次模型[J].中国公路学报,2009,22(3):7-11. ZHENG Nan-xiang,NIU Si-sheng,XU Xin-quan.Temperature,axle load and axle load frequency model of rutting prediction of heavy-duty asphalt pavement[J].China Journal of Highway and Transport,2009,22(3):7-11.
[14]郭红兵,陈拴发.沥青路面热-荷载耦合应力数值分析[J].长安大学学报:自然科学版,2010,30(2):15-19. GUO Hong-bing,CHEN Shuan-fa.Numerical analysis of temperature load coupling stress for asphalt pavement[J].Journal of Chang'an University:Natural Science Edition,2010,30(2):15-19.

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Last Update: 2011-02-28