| 黏弹性对沥青路面疲劳开裂的影响 |
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| 引用本文： | 赵延庆,谭忆秋,王国忠,王志超.黏弹性对沥青路面疲劳开裂的影响[J].吉林大学学报(工学版),2010,40(3). |
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| 作者姓名： | 赵延庆 谭忆秋 王国忠 王志超 |
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| 作者单位： | 1. 大连理工大学交通运输学院,辽宁,大连,116024
2. 哈尔滨工业大学交通科学与工程学院,哈尔滨,150001 |
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| 基金项目： | 国家自然科学基金项目(50778057);;交通部西部交通科技建设项目(200831800099) |
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| 摘 要： | 建立了黏弹性三维有限元模型,对典型沥青路面结构路表及沥青层底的水平应力进行了计算,分析了荷载模式及温度对黏弹性响应的影响。结果表明:在循环荷载作用下,路表和沥青层底都经受水平压应力和拉应力的重复作用,且在路表和沥青层底分别产生少量的残余拉应力和残余压应力,这有可能是造成沥青路面从上到下或从下到上疲劳开裂的原因之一。随着温度的升高,残余应力减少,且路表产生的压应力幅值和沥青层底产生的拉应力幅值都降低。
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| 关 键 词： | 道路工程 沥青路面 黏弹性 三维有限元 疲劳开裂 温度 荷载模式 |
Effect of viscoelasticity on fatigue cracking of asphalt pavement |
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| ZHAO Yan-qing,TAN Yi-qiu,WANG Guo-zhong,WANG Zhi-chao.Effect of viscoelasticity on fatigue cracking of asphalt pavement[J].Journal of Jilin University:Eng and Technol Ed,2010,40(3). |
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| Authors: | ZHAO Yan-qing TAN Yi-qiu WANG Guo-zhong WANG Zhi-chao |
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| Affiliation: | 1.School of Transportation Engineering;Dalian University of Technology;Dalian 116024;China;2.School of Transportation Science & Engineering;Harbin Institute of Technology;Harbin 150001;China |
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| Abstract: | A viscoelastic 3-D finite element model was built to calculate the horizontal stresses in the surface and bottom layers of typical road asphalt pavement structure,and the effects of loading mode and temperature on their viscoelastic responses were analyzed.The results showed that the surface layer and the bottom layer of the road pavement experience the repeated horizontal tensile and compressive stresses under cyclic loading and small residual tensile and compressive stresses build up in the surface layer ... |
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| Keywords: | road engineering asphalt pavement viscoelasticity 3-D finite element method fatigue cracking temperature loading mode |
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