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沥青混合料本构关系对路面力学响应的影响

, PP. 6-11

Keywords: 道路工程,沥青混合料,本构关系,动态模量

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Abstract:

?为了给沥青路面结构的分析和设计提供参考,利用三维有限元方法对典型沥青路面结构的力学响应进行了分析,分析中分别将沥青混合料当作粘弹性材料和以动态模量、抗压回弹模量表征其基本力学参数的弹性材料。分析了不同温度、行车速度及基层类型下路表弯沉、沥青面层底和半刚性基层底水平应力,并对结果进行了比较。结果表明:基于动态模量的分析和粘弹性分析结果比较接近,尤其是路表弯沉峰值和半刚性基层底水平应力峰值的平均相对误差在2%以内|而采用抗压回弹模量分析的结果则差别较大,尤其是沥青面层底拉应力峰值只有粘弹性分析结果的1/3左右|在弹性分析范畴内,应该用动态模量取代抗压回弹模量,以提高路面力学响应分析结果的精度并综合考虑温度、行车速度等因素的影响。

References

[1]  JTG D50—2006,公路沥青路面设计规范[S].
[2]  JTG D50—2006,Specifications for Design of Highway Asphalt Pavement[S].
[3]  READ J,WHITEOAK D,HUNTER R.SHELL Bitumen Handbook[M].5th ed.London:Thomas Telford Publishing,2003.
[4]  Applied Research Associates.Guide for Mechanistic-empirical Pavement Design[R].Washington DC:Transportation Research Board,2004.
[5]  赵延庆,薛 成,黄荣华.沥青混合料抗压回弹模量与动态模量比较分析[J].武汉理工大学学报,2007,29(12):105-107,111.
[6]  ZHAO Yan-qing,XUE Cheng,HUANG Rong-hua.Comparison of Compressive Resilient Modulus and Dynamic Modulus of Asphalt Mixtures[J].Journal of Wuhan University of Technology,2007,29(12):105-107,111.
[7]  杨挺青,罗文波,徐 平,等.粘弹性理论与应用[M].北京:科学出版社,2004.
[8]  YANG Ting-qing,LUO Wen-bo,XU Ping,et al.Viscoelastic Theory and Applications[M].Beijing:Science Press,2004.
[9]  AASHTO TP62-03:2005,Standard Method of Test for Determining Dynamic Modulus of Hot-mix Asphalt Concrete Mixtures[S].
[10]  赵延庆,叶 勤,文 健.围压对沥青混合料动态模量的影响[J].重庆交通大学学报:自然科学版,2007,26(6):96-99.
[11]  ZHAO Yan-qing,YE Qin,WEN Jian.Effects of Confining Pressure on Dynamic Modulus[J].Journal of Chongqing Jiaotong University:Nature Science,2007,26(6):96-99.
[12]  PARK S W,SCHAPERY R A.Methods of Interconversion Between Linear Viscoelastic Material Functions.Part I-A Numerical Method Based on Prony Series[J].International Journal of Solids &| Structures,1999,36(11):1653-1675.
[13]  ZHAO Yan-qing,HUANG Da-xi,PAN You-qiang.Analysis of Viscoelastic Responses of Asphalt Pavements with Flexible Bases[J].China Civil Engineering Journal,2007,40(5):96-99,110.
[14]  ZHAO Yan-qing,WU Jian,WEN Jian.Determination and Analysis of Dynamic Modulus of Asphalt Mixture and Its Master Curve[J].Highway,2006(8):163-167.
[15]  赵延庆,王志超,王国忠,等.移动荷载下沥青路面内应力脉冲的持续时间[J].交通运输工程学报,2009,9(6):11-15.
[16]  ZHAO Y,KIM Y R.Time-temperature Superposition for Asphalt Mixtures with Growing Damage and Permanent Deformation in Compression[J].Transportation Research Record,2003,1832:161-172.
[17]  赵延庆,黄大喜,潘友强.柔性基层沥青路面结构黏弹性力学响应分析[J].土木工程学报,2007,40(5):96-99,110.
[18]  赵延庆,吴 剑,文 健.沥青混合料动态模量及其主曲线的确定与分析[J].公路,2006(8):163-167.
[19]  HUANG Y H.Pavement Analysis and Design[M].2nd ed.Englewood Cliffs:Prentice Hall,2003.
[20]  ZHAO Yan-qing,WANG Zhi-chao,WANG Guo-zhong,et al.Stress Pulse Durations in Asphalt Pavement Under Moving Load[J].Journal of Traffic and Transportation Engineering,2009,9(6):11-15.

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