| 考虑半刚性结构层横向贯通裂缝的沥青路面疲劳特性分析 |
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| 引用本文： | 刘浩,黄开宇,邓蓉.考虑半刚性结构层横向贯通裂缝的沥青路面疲劳特性分析[J].中南公路工程,2012(2):162-166,171. |
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| 作者姓名： | 刘浩 黄开宇 邓蓉 |
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| 作者单位： | [1]湖南省高速公路管理局,湖南长沙410001 [2]湖南省交通科学研究院,湖南长沙410015 [3]湖南省永吉交通公路建设开发有限公司,湖南长沙410003 |
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| 摘 要： | 采用有限元计算分析在无横向裂缝和有横向贯通裂缝两种工况条件下沥青路面的弯沉、沥青层最大拉应力和最大剪应力、半刚性层最大拉应力以及计算疲劳寿命,分析结果表明,考虑半刚性层存在横向贯通裂缝时,内部应力增加且计算疲劳寿命将大为降低。在提出高速公路沥青路面结构必要时应考虑存在裂缝的工况下进行验算。
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| 关 键 词： | 半刚性层 横向裂缝 最大拉应力 最大剪应力 弯沉 疲劳寿命 |
Asphalt Pavement Fatigue Characteristic Analysis Considering the Semi-rigid Layer of Transverse Crack |
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| LIU Hao,HUANG Kaiyu,DENG Rong.Asphalt Pavement Fatigue Characteristic Analysis Considering the Semi-rigid Layer of Transverse Crack[J].Central South Highway Engineering,2012(2):162-166,171. |
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| Authors: | LIU Hao HUANG Kaiyu DENG Rong |
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| Institution: | 1.Highway Administration of Hunan Province,Changsha,Hunan 410011,China;2.Hunan Communication Research Znstitute,Changsha,Hunan 410015,Chian;3.Hunan Yongji Highway Construction ＆ Development Co.Ltd.,Changsha,Hunan 410003,China) |
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| Abstract: | In this paper finite element analysis method（FEM） has been used to calculate and analyze asphalt pavement deflection,the maximum tensile stress and shear stress of asphalt layer,the maximum tensile stress and calculation fatigue life of semi-rigid layer in no transverse cracks and lateral cracks in two working conditions.The results show that the internal stress increases and the calculation fatigue life will be greatly reduced.In highway asphalt pavement structure design should consider structural analysis when road in crack condition. |
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| Keywords: | semi-rigid layer transverse crack maximum tensile stress maximum shear stress deflection fatigue life |
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