| 非均布移动荷载下含表面裂缝路面结构应力响应 |
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| 引用本文： | 王鹏,郭成超.非均布移动荷载下含表面裂缝路面结构应力响应[J].公路交通科技,2011,28(8):19-24. |
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| 作者姓名： | 王鹏 郭成超 |
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| 作者单位： | 郑州大学 水利与环境学院,河南郑州,450002 |
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| 摘 要： | 采用移动加载的动载模型,考虑轮胎花纹形式,选用非均布轮胎荷载模式,建立三维有限元路面结构模型分析了非均布移动荷载作用下含表面纵向和横向裂缝路面结构的应力响应,以探求移动荷载作用下表面裂缝的开裂机理.采用空间有限元——时间差分法对问题进行数值求解.分析过程中对裂缝尖端网格局部进行加密处理,并用位移法求取裂缝尖端的应力强度...
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| 关 键 词： | 道路工程 路面结构 有限元分析 移动荷载 表面裂缝 养护 |
Stress of Pavement Structure with Surface Cracking under Non-uniform Moving Load |
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| WANG Peng,GUO Chengchao.Stress of Pavement Structure with Surface Cracking under Non-uniform Moving Load[J].Journal of Highway and Transportation Research and Development,2011,28(8):19-24. |
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| Authors: | WANG Peng GUO Chengchao |
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| Institution: | WANG Peng,GUO Chengchao(School of Water Conservancy and Environmental Engineering,Zhengzhou University,Zhengzhou Henan 450002,China) |
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| Abstract: | Adopted the moving load model and the non-uniform tire load mode,based on the tire footprint,a 3D finite element model of pavement structure was established to analyse the stress response of the pavement structure with either longitudinal cracks or transverse cracks under non-uniform moving load to search for the mechanism of surface-initiated cracking under moving load.Time difference was combined with space analysis in 3D finite element with the crack tip meshing densely during the calculation,and the str... |
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| Keywords: | road engineering pavement structure finite element analysis moving load surface cracking maintenance |
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