沥青路面动态响应数值分析

罗辉; 朱宏平; 郝行舟

沥青路面动态响应数值分析

罗辉^1,,
朱宏平^{1, 2},
郝行舟¹

1.
华中科技大学土木工程与力学学院, 湖北武汉 430074
2.
华中科技大学控制结构湖北省重点实验室, 湖北武汉 430074

基金项目:

国家自然科学基金项目 10672063

教育部新世纪优秀人才支持计划项目 NCET-04-0720

武汉市建设科研计划项目 2006-39

详细信息

作者简介:
罗辉(1979-), 男, 湖北武汉人, 华中科技大学工学博士, 从事道路结构行为及理论研究

中图分类号: U416.01
计量
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- HTML全文浏览量: 95
- PDF下载量: 218
- 被引次数: 0
出版历程
- 收稿日期: 2007-02-12
- 刊出日期: 2007-08-25

Numerical analysis of dynamic response on asphalt pavement

1.
School of Civil Engineering and Mechanics, Huazhong University of Science and Technology, Wuhan 430074, Hubei, China
2.
Hubei Key Laboratory of Control Structure, Huazhong University of Science and Technology, Wuhan 430074, Hubei, China

More Information

Author Bio:
Luo Hui (1979-), male, EngD, +86-27-87556774, luohui@smail.hust.edu.cn

摘要

摘要: 为了优化沥青路面结构设计, 引入无反射边界, 依据结构动力理论, 利用有限元数值分析方法, 对多层沥青路面在移动荷载作用下的动态响应进行了分析。发现沥青面层的拉应力和路表弯沉随着基层模量、层间摩擦系数、行车速度和面层材料阻尼的增大而减小, 剪切应力随着轮胎接地压力和基层模量的增大而增大。分析结果表明: 基层设计需要综合优化设计, 简单增加基层模量和厚度都是不合适的; 良好的层间接触状态以及使用较大阻尼的材料, 有利于路面性能的改善; 提高行车速度可以延长路面的使用寿命。
- 路面工程 /
- 动力分析 /
- 无反射边界 /
- 粘弹性 /
- 层间接触状态
Abstract: In order to optimize the structural design of asphalt pavement, non-reflective boundary was introduced, structural dynamics theory was adopted, its dynamic responses under moving loads were analyzed by using finite element method. It is pointed that tensile stress and surface deflection decrease with the increases of base course modulus, friction coefficient, vehicle velocity and surface course damping, but the shear stress ascends with the raises of tire pressure and base course modulus. Analysis result shows that it is not appropriate to simply increase base course modulus and thickness, the base design should be optimized synthetically; good contacting condition and great damping material lead to fine pavement performance; the velocity increase of vehicle can extend pavement service life.
- pavement engineering /
- dynamic analysis /
- non-reflective boundary /
- viscoelasticity /
- contacting condition between interfaces

HTML全文

图 1 不同边界的位移

Figure 1. Displacements of different boundaries

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图 2 路面结构

Figure 2. Pavement structure

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图 3 动态荷载

Figure 3. Dynamic load

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图 4 时间历程响应

Figure 4. Response of time history

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图 5 基层模量的影响

Figure 5. Influence of base modulus

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图 6 基层厚度的影响

Figure 6. Influence of base thickness

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图 7 接触状态的影响

Figure 7. Influence of contacting condition

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图 8 阻尼的影响

Figure 8. Influence of damping

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图 9 行车速度的影响

Figure 9. Influence of vehicle velocity

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图 10 轮胎接地压力的影响

Figure 10. Influence of tire pressure

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表 1 结构参数

Table 1. Structure parameters

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表 2 沥青面层的材料参数

Table 2. Material parameters of asphalt surface course

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参考文献(16)

[1]	Gillespie T D, Karamihas S M, Sayers M W, et al. Effect of heavy-vehicle characteristics on pavement response and performance[R]. Washington DC: Transportation Research Board, 1993.
[2]	Zaman M, Taheri M R, Alvappillai A. Dynamic response of a thick plate on viscoelastic foundation to moving loads[J]. International Journal for Numerical and Analytical Methods in Geomechanics, 1991, 15(9): 627-647. doi: 10.1002/nag.1610150903
[3]	蒋建群, 周华飞, 张土乔. 移动荷载下粘弹性地基上无限大板的稳态响应[J]. 中国公路学报, 2006, 19(1): 6-11. doi: 10.3321/j.issn:1001-7372.2006.01.002 Jiang Jian-qun, Zhou Hua-fei, Zhang Tu-qiao. Steady state response of infinite plate on visco-elastic foundation subjected to movingload[J]. China Journal of Highway and Transport, 2006, 19(1): 6-11. (in Chinese) doi: 10.3321/j.issn:1001-7372.2006.01.002
[4]	王林玉, 谢永利, 朱向荣, 等. 循环荷载作用下路面模型试验研究[J]. 西安公路交通大学学报, 1999, 19(4): 11-14. doi: 10.3321/j.issn:1671-8879.1999.04.003 Wang Lin-yu, Xie Yong-li, Zhu Xiang-rong, et al. Study on model experiment of pavement under cyclic loads[J]. Journal of Xi'an Highway University, 1999, 19(4): 11-14. (in Chinese). doi: 10.3321/j.issn:1671-8879.1999.04.003
[5]	邓卫东, 张兴强, 陈波, 等. 路基不均匀沉降对沥青路面受力变形影响的有限元分析[J]. 中国公路学报, 2004, 17(1): 12-15. doi: 10.3321/j.issn:1001-7372.2004.01.003 Deng Wei-dong, Zhang Xing-qiang, Chen Bo, et al. Nonlinear FEM analysis of influence of asphalt pavement under nonhomogenous settlement of roadbed[J]. China Journal of Highway and Transport, 2004, 17(1): 12-15. (in Chinese) doi: 10.3321/j.issn:1001-7372.2004.01.003
[6]	郝大力, 王秉纲. 路面结构动力响应分析[J]. 长安大学学报: 自然科学版, 2002, 22(3): 9-12. https://www.cnki.com.cn/Article/CJFDTOTAL-XAGL200203002.htm Hao Da-li, Wang Bing-gang. Dynamic response of pavement structure[J]. Journal of Chang'an University: Natural Science Edition, 2002, 22(3): 9-12. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-XAGL200203002.htm
[7]	郝大力, 王秉纲. 路面结构动力响应仿真与参数分析研究[J]. 中国公路学报, 2001, 14(4): 1-4. doi: 10.3321/j.issn:1001-7372.2001.04.001 Hao Da-li, Wang Bing-gang. Simulation and parametric analysis on dynamic response of pavement structures[J]. China Journal of Highway and Transport, 2001, 14(4): 1-4. (in Chinese) doi: 10.3321/j.issn:1001-7372.2001.04.001
[8]	张洪亮, 胡长顺, 许伟清. 移动荷载下柔性路面的动力响应[J]. 长安大学学报: 自然科学版, 2005, 25(5): 6-10. doi: 10.3321/j.issn:1671-8879.2005.05.002 Zhang Hong-liang, Hu Chang-shun, Xu Wei-qing. Dynamic response of flexible pavement under movingload[J]. Journal of Chang an University: Natural Science Edition, 2005, 25(5): 6-10. (in Chinese) doi: 10.3321/j.issn:1671-8879.2005.05.002
[9]	王金昌, 朱向荣. 软土地基上含反射裂缝沥青道路的动力响应分析[J]. 中国公路学报, 2004, 17(1): 1-6. doi: 10.3321/j.issn:1001-7372.2004.01.001 Wang Jin-chang, Zhu Xiang-rong. Dynamic analysis of asphalt pavement with reflective crack on the soft clay groud[J]. China Journal of Highway and Transport, 2004, 17(1): 1-6. (in Chinese) doi: 10.3321/j.issn:1001-7372.2004.01.001
[10]	金亮星, 张家生, 聂志红. 高速铁路振动荷载时程的动力反分析[J]. 交通运输工程学报, 2005, 5(1): 36-38. doi: 10.3321/j.issn:1671-1637.2005.01.009 Jin Liang-xing, Zhang Jia-sheng, Nie Zhi-hong. Dynamic inverse analysis for vibration-load history of high-speedrailway[J]. Journal of Traffic and Transportation Engineering, 2005, 5(1): 36-38. (in Chinese) doi: 10.3321/j.issn:1671-1637.2005.01.009
[11]	刘延柱. 高等动力学[M]. 北京: 高等教育出版社, 2001.
[12]	Kulak R F, Fiala C. Neptune: a systemof finite element pro-grams for three-dimensional nonlinear analysis[J]. Nuclear Engineering and Design, 1988, 106(1): 47-68. doi: 10.1016/0029-5493(88)90269-5
[13]	Lysmer J, Kuhlemeyer R L. Finite dynamic model forinfinite media[J]. Journal of Engineering Mechanics Division, 1969, 95(4): 859-877.
[14]	Dimonte G, Nelson D, Weaver S. Comparative study of viscoelastic properties using virgin yogurt[J]. Journal of Rheology, 1998, 42(4): 727-742. doi: 10.1122/1.550915
[15]	JTJ014-97, 公路沥青路面设计规范[S].
[16]	Hallquist J O. LS-DYNA Theoretical Manual[M]. USA: Livermore Software Technology Corporation, 1998.