[1]王威娜,李小飞,徐青杰,等.沥青路面二维和三维结构分析模型的比较[J].深圳大学学报理工版,2018,35(1):39-47.[doi:10.3724/SP.J.1249.2018.01039]
　WANG Weina,LI Xiaofei,XU Qingjie,et al.Comparison of two dimensional and three dimensional modeling methods on the mechanical response of asphalt pavement[J].Journal of Shenzhen University Science and Engineering,2018,35(1):39-47.[doi:10.3724/SP.J.1249.2018.01039]
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沥青路面二维和三维结构分析模型的比较()
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《深圳大学学报理工版》[ISSN:1000-2618/CN:44-1401/N]

卷:
第35卷
期数:
2018年第1期
页码:
39-47
栏目:
土木建筑工程
出版日期:
2018-01-12

文章信息/Info

Title:
Comparison of two dimensional and three dimensional modeling methods on the mechanical response of asphalt pavement
文章编号:
201801007
作者:
王威娜1; 2; 李小飞2; 徐青杰2;  秦煜3;  闫强4
1）重庆交通大学交通土建工程材料国家地方联合工程实验室，重庆 400074；
2）重庆交通大学土木工程学院，重庆 400074；3）中铁二院重庆勘察设计研究院有限责任公司，重庆 400023；
4）广西交投科技有限公司，广西壮族自治区南宁 530021
Author(s):
WANG Weina1; 2;  LI Xiaofei2;  XU Qingjie2;  QIN Yu3;  and YAN Qiang4
1) National and Local Joint Engineering Laboratory of Traffic Civil Engineering Materials, Chongqing Jiaotong University, Chongqing 400074, P.R.China
2) School of Civil Engineering, Chongqing Jiaotong University, Chongqing 400074, P.R.China
3) CREEC (Chongqing) Survey, Design and Research Co. Ltd., Chongqing 400023, P.R.China
4) Guangxi Trading Technology Co. Ltd., Nanning 530021, Guangxi Zhuang Autonomous Region, P.R.China
关键词:
道路工程; 沥青路面; 二维模型; 三维模型; 力学响应; 有限元法
Keywords:
road engineering; asphalt pavement;  two dimensional model;  three dimensional model;  mechanical response;  finite element method
分类号:
U 416.23
DOI:
10.3724/SP.J.1249.2018.01039
文献标志码:
A
摘要:
为量化二维与三维沥青路面有限元模型之间的差异，应用ABAQUS建立二维及三维模型，考虑单次静力荷载与动态荷载作用，研究刚性、半刚性和柔性3种典型沥青路面的位移及应力空间分布特性，结合双尾显著性检验，对比分析二维与三维建模方法对位移及应力的影响. 结果表明，静力荷载作用下二维模型的位移是三维模型的15倍以上，动态荷载作用下二维模型的位移是三维模型的22倍以上；静力荷载作用下二维模型不同类型应力为三维模型的1.2~5.1倍，动态荷载作用下二维模型不同类型应力为三维模型的2.6~11.9倍. 结合双尾显著性水平得到，静力荷载作用下横断面上垂直应力和切应力无显著性差异，可将三维路面结构简化为二维平面.
Abstract:
In order to quantify the differences between the two dimensional (2D) and the three dimensional (3D) finite element models of asphalt pavement, we establish the two kinds of models based on the finite element method under the consideration of the single static load and dynamic load. The displacement and stress spatial distribution characteristics of three kinds of typical asphalt pavement including the rigid pavement, the semi-rigid pavement and the flexible pavement, are analyzed. The numerical results of 2D modelling and 3D modelling on the displacement and stress are compared by combining the double tail significance test. The results show that the displacement of 2D model is over 15 times more than that of 3D model under static load, and it is 22 times more than that of 3D model under dynamic load. The stress of 2D model is 1.2~5.1 times of the stress of 3D model under static load and 2.6~11.9 times under the dynamic load. There is no significant difference between vertical stress and shear stress on the cross section under static load combined with the double tail significance level, and at this time the three-dimensional pavement structure can be simplified to two-dimensional plane.

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备注/Memo

备注/Memo:
Received：2017-08-22；Accepted：2017-10-11
Foundation：National Natural Science Foundation of China (51508064,51408083); Chongqing Frontier and Application Basic Research Project (cstc2014jcyjA30018,cstc2016jcyjA0128); Guangxi Transportation Science and Technology Plan Project (2013-100-28
Corresponding author：Senior engineer QIN Yu. E-mail: qinyubridge@163.com
Citation：WANG Weina, LI Xiaofei, XU Qingjie, et al．Comparison of two dimensional and three dimensional modeling methods on the mechanical response of asphalt pavement［J］. Journal of Shenzhen University Science and Engineering, 2018, 35(1): 39-47.（in Chinese）
基金项目：国家自然科学基金资助项目（51508064，51408083）；重庆市前沿与应用基础研究计划资助项目（cstc2014 jcyjA30018，cstc2016jcyjA0128）；广西科技计划资助项目（2013-100-28)
作者简介：王威娜（1983—），女，重庆交通大学副教授、博士. 研究方向：路面结构设计理论．E-mail：wwn0816@yeah.net
引文：王威娜，李小飞，徐青杰，等．沥青路面二维和三维结构分析模型的比较［J］. 深圳大学学报理工版，2018，35(1)：39-47.
更新日期/Last Update: 2017-12-22