Dynamic response of asphalt pavement under moving loads with low and variable speed

被引：6

作者：

Qian, Zhendong ^{[1
]}

Yang, Yuming ^{[1
]}

Chen, Tuanjie ^{[2
]}

Li, Zhan ^{[1
]}

机构：

[1] Intelligent Transportation System Research Center, Southeast University, Nanjing

[2] CCCC First Highway Consultants Co. Ltd., Xi'an

来源：

Zhongnan Daxue Xuebao (Ziran Kexue Ban)/Journal of Central South University (Science and Technology) | 2015年 / 46卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Dynamic modulus; Moving loads; Road engineering; Road intersection; Road pavement;

D O I：

10.11817/j.issn.1672-7207.2015.03.047

中图分类号：

学科分类号：

摘要：

In order to study the influence of vehicle loads with low and variable speed on asphalt pavement, the dynamic modulus master curves of several asphalt mixtures were determined according to the laboratory test data and time-temperature superposition principle. The moving load model was established by investigation and calculation. The change law of pavement materials' dynamic modulus under vehicles' variable motion was established. The influences of different vehicle speed and speed variation on the dynamic response were analyzed using 3D finite element method. The contrasts of numerical computation result between using dynamic modulus and compressive resilient modulus were also studied. The results show that dynamic modulus reflects mixture properties more accurately under moving loads, and the lower vehicle speed can cause fatigue damage more easily. The maximal horizontal shear stress increases greatly with the increase of vehicle acceleration, which makes swell and rut occur frequently. ©, 2015, Central South University of Technology. All right reserved.

引用

页码：1140 / 1146

页数：6

共 17 条

[1]

Hajj E.Y., Sebaaly P.E., Siddharthan R.V., Et al., Investigation and analysis of hot mix asphalt mixtures at Nevada's intersections, Proceedings of the International Conference on Advanced Characterisation of Pavement and Soil Engineering Materials, pp. 1679-1689, (2007)

[2]

Guo Y., Liu B., Ni F., Et al., Investigation and analysis of pavement distress at road intersections in Nanjing, China Municipal Engineering, 3, pp. 8-11, (2002)

[3]

Ma X., Guo Z., Li Z., Et al., Shear destruction mechanism of asphalt pavement under moving load, China Journal of Highway and Transport, 22, 6, pp. 34-39, (2009)

[4]

Dong Z., Cao L., Tan Y., Et al., Analysis of the dynamic response of three directional strains in asphalt pavement under moving vehicle loads, China Civil Engineering Journal, 42, 4, pp. 133-139, (2009)

[5]

Ni F., Wang Y., Ma X., Mechanical analysis of asphalt pavement in urban intersections, Journal of Highway and Transportation Research and Development, 27, 7, pp. 41-45, (2010)

[6]

Li L., Huang X., Permanent deformation of asphalt pavement under horizontal moving load, Journal of South China University of Technology (Natural Science Edition), 39, 3, pp. 125-129, (2011)

[7]

Wei J., Cui S., Hu J., Research on dynamic modulus of asphalt mixtures, Journal of Building Materials, 11, 6, pp. 657-661, (2008)

[8]

American Association of State Highway Transportation Officials, Specification Designation TP6 Standard method for determining dynamic modulus of hot-mix asphalt concrete mixtures

[9]

Zhang X., The principles and applications of viscoelastic mechanics of asphalt and asphalt mixtures, pp. 71-81, (2006)

[10]

Pellinen T.K., Witczak M.W., Stress dependent master curve construction for dynamic (complex) modulus, Journal of the Association of Asphalt Paving Technologists, 71, pp. 281-309, (2002)

← 1 2 →