|本期目录/Table of Contents|

[1]胡小弟,陶 雄,白 桃*.考虑实测轮载及各向异性的沥青路面力学响应[J].武汉工程大学学报,2015,37(04):40-44.[doi:10. 3969/j. issn. 1674—2869. 2015. 04. 009]
 AO,BAI Tao.Mechanical response of asphalt pavement based on measured load and anisotropic properties[J].Journal of Wuhan Institute of Technology,2015,37(04):40-44.[doi:10. 3969/j. issn. 1674—2869. 2015. 04. 009]
点击复制

考虑实测轮载及各向异性的沥青路面力学响应(/HTML)
分享到:

《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
37
期数:
2015年04期
页码:
40-44
栏目:
资源与土木工程
出版日期:
2015-04-30

文章信息/Info

Title:
Mechanical response of asphalt pavement based on measured load and anisotropic properties
文章编号:
1674—2869(2015)04—0040—05
作者:
胡小弟陶 雄白 桃*
武汉工程大学交通研究中心,湖北 武汉 430074
Author(s):
HU Xiao-di TAO XiongBAI Tao
Transportation Research Center, Wuhan Institute of Technology, Hubei Province Wuhan 430074, China
关键词:
沥青混合料各向异性实测轮载力学响应
Keywords:
asphalt mixture anisotropic measured wheel load mechanical response
分类号:
U416.2
DOI:
10. 3969/j. issn. 1674—2869. 2015. 04. 009
文献标志码:
A
摘要:
为研究各向异性对沥青混合料轮载受力反应的影响,在实测轮载的基础上,采用有限元方法进行沥青路面结构层横观各向同性的弹性应力响应研究.以ANSYS有限元软件中的正交各向异性模型模拟沥青材料横观各向同性,加载实测非均布的轮胎-路面接地竖向压力及水平力,进行各向同性和横观各向同性条件下路面结构层的三向正应力以及剪应力的差异性分析.结果表明:沥青混合料各向异性特性对沥青路面结构层的竖向、横向和剪切应力基本无影响,但其对沥青结构层的行车向方向应力影响较大.目前我国采用的设计标准在弹性框架下不考虑沥青混合料的各向异性特征基本适用.
Abstract:
To investigate the influence of anisotropic characteristics of asphalt mixture on its reaction to the measured wheel load, finite element method (FEM) was adopted to calculate the pavement stress caused by the measured non-uniformly distributed tire load. The simulation was conducted in the frame of elastic theory and the asphalt mixture was reckoned to be cross-anisotropic. The orthotropic model in the commercial software ANSYS was used to simulate the characteristic of cross-anisotropic. The stresses introduced by the tire load mentioned above acting both on the vertical and horizontal directions, including three normal stress and shear stress, were compared for different material assumptions of isotropic and anisotropic. The results show that the anisotropic characteristic of asphalt mixture has a minimal effect on the vertical stress, transverse stress and the shear stress of the asphalt pavement. However, the divergence should not be ignored in the travelling direction compared to the situation that the asphalt mixture is taken to be isotropic. The specification being used now is basically appropriate in the frame of elastic theory with no anisotropic characteristic of asphalt mixture to be considered.

参考文献/References:

[1] MASAD Eyad, TASHMAN Laith, SOMEDAVAN Niranjanan, et al. Micromechanics?鄄based analysis of stiffness anisotropy in asphalt mixtures[J]. Journal of Materials in Civil Engineering, 2002,14(5):374-383.[2] UNDERWOOD Shane,HEIDARI A H, Guddati Murthy, et al. Experimental investigation of anisotropy in asphalt concrete[J]. Transportation research record journal of the Transportation Research Board, 2005,1929(1):238-247.[3] SEYHAN U, TUTUMLUER Erol. Anisotropic Modular ratios as unbound aggregate performance indicators[J]. Journal of Materials in Civil Engineering, 2002,14(5):409-416.[4] 胡小弟. 轮胎接地压力分布实测及沥青路面力学响应分析[D]. 上海:同济大学, 2003.HU Xiao?鄄di. The tire ground pressure distri?鄄bution measurement and the mechanical response analysis of asphalt pavement[D]. Shanghai:Tongji University, 2003. (in chineses)[5] 沈观林,胡更开. 复合材料力学[M]. 北京:清华大学出版社, 2006.SHEN Guan-lin, Hu Geng-kai. Mechanics of composites materials[M]. Beijing: Tsinghua University Publishing, 2006. (in chineses)[6] DE Beer M, Fisher C, Jooste F J. Determination of pneumatic tyre/Pavement interface contact pressurees under moving loads and some effects on pavements with thin asphalt surfacing layers[C]//Proceedings of the Eighth International Conference on Asphalt Pavements.1997(1):179-227.[7] LOULIZI A, Al-Qadi I L, Lahouar S, et al. Measurement of vertical compressive stress pulse in flexible pavements:representation for dynamic loading tests[J]. Transportation Research Record: Journal of the Transportation Research Bo-ard, 2002,1816(1):125-136.[8] Al-QADI I L, YOO P J. Effect of surface tangential contact pressure on flexible pavement response[J]. Journal of the association of asphalt paving technologists, 2007(76):663-692.[9] 中华人民共和国行业标准(JTG D50-2006).公路沥青路面设计规程[S]. 北京:人民交通出版社, 2006.Industry Criterion of the People's Republic of China (JTG D50-2006). Design rules of asphalt pavement for highway engineering[S]. Beijing: People Traffic Publishing, 2006. (in chineses)[10] UZAN J. Characterization of granular material[J]. Transportation Research Record,1985:10-22. [11] UZAN J. Resilient characterization of pavement Materials[J]. International Journal for Numerical and Analytical Methods in Geomechanics, 1992,16(6):453-459.[12] WANG L, HOYOS L R, WANG J, et al. Anisotropic properties of asphalt concrete: characterization and implications for pavement design and analysis[J]. Journal of Materials in Civil Engineering, 2005,17(5):535-543.[13] APARICIO RAMOS S I. Study of the asphalt pavement damage through nondestructive testing on overweight truck routes[D]. Texas: Master’s thesis, Texas A&M University, College Station, 2003.[14] OH J H, LYTTON R L, FERNANDO E G. Modeling of pavement response using nonlinear cross-anisotropy approach[J]. Journal of Transportation Engineering, 2006, 132(6): 458-468.[15] 鞠达.沥青混凝土材料的各向异性及其对路面结构受力的影响[D]. 南京:东南大学, 2011.JU da. Anisotropy of asphalt concrete and the influence in pavement [D]. Nanjing:Southeast University, 2011.(in chineses)

相似文献/References:

[1]艾 畅,阳 汉,吴冷雷,等.剑麻纤维对高模量沥青混合料低温性能的改善[J].武汉工程大学学报,2017,39(01):69.[doi:10. 3969/j. issn. 1674?2869. 2017. 01. 012]
 AI Chang,YANG Han,WU Lenglei,et al.Improvement of Low Temperature Performance of High Modulus Asphalt Mixture by Sisal Fiber[J].Journal of Wuhan Institute of Technology,2017,39(04):69.[doi:10. 3969/j. issn. 1674?2869. 2017. 01. 012]
[2]屠艳平,陈国夫,徐 雄*,等.再生混凝土微粉对沥青及沥青混合料性能的影响[J].武汉工程大学学报,2023,45(03):349.[doi:10.19843/j.cnki.CN42-1779/TQ.202109007]
 TU Yanping,CHEN Guofu,XU Xiong*,et al.Influence of Recycled Cement Powder on Performance ofAsphalt and Its Mixture[J].Journal of Wuhan Institute of Technology,2023,45(04):349.[doi:10.19843/j.cnki.CN42-1779/TQ.202109007]

备注/Memo

备注/Memo:
收稿日期;2015-04-10基金项目:国家自然科学基金项目(51278389);湖北省交通运输厅科技项目(2013-731-2-5)作者简介:胡小弟(1971-),男,湖南常德人,教授,博士. 研究方向院路面结构行为.* 通信联系人
更新日期/Last Update: 2015-05-25