Analysis on Three-Direction Strain of Asphalt Pavement Structure Based on Accelerated Pavement Testing

Abstract:

The internal mechanical response of asphalt pavement structure is difficult to be obtained because of the limitations of theoretical calculation and present testing methods. In order to get practical information of instructure layers, this paper analyzed the cumulative and instantaneous strains of layers’ bottom of semi-rigid base asphalt pavement based on Accelerated Pavement Testing and Fiber Bragg Grating sensors, as well as got the spatial distribution and time-variation law of longitudinal, lateral and vertical strain responses under controlled loading condition. The research result shows that under the moving vehicle loads, there is an obvious alternative property of tension-compression as the strain response of the pavement structure, and different variation shapes of instantaneous stain are in different layers from top to down. Also the measured instantaneous three-direction strain of the bottom of each surface are higher than the calculated values with BISAR, while they anatomizes well in base. This paper can be regarded as useful and tentative research and application on future correlative study.

• Periodical: Advanced Materials Research (Volumes 255-260)
• Pages: 3426-3431
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.255-260.3426
• Online since: May 2011
• Authors: Jin Ting Wu, Fen Ye, Yin Ting Wu
• Keywords: Accelerated Pavement Testing (APT), Cumulative Strain, Fiber Bragg Grating (FBG), Instantaneous Strain, Lateral, Longitudinal, Three-Direction Strain, Vertical

References

[1] Zejiao Dong, Liping Cao, Yiqiu Tan et al.: China Civil Engineering Journal Vol. 42(4) (2009), p.133~139, in Chinese.

[2] J. Richard Willis and David H. Tim, in: Development of Stochastic Perpetual Pavement Design Criteria (2006).

[3] Xudong Zha, Qisen Zhang: China Civil Engineering Journal Vol. 33(5) (2000), p.92~96, in Chinese.

[4] Hezhe Wang: Master Dissertation, Harbin Institute of Technology (2006), in Chinese.

[5] Shaoxing Chen, Xiaoning Zhang, Quanliang Xu et al.: Chinese Journal of Sensors and Actuators Vol. 19(2) (2006), p.396~398, in Chinese.

[6] Fengchen Chen, Yiqiu Tan and Zejiao Dong: Journal of Highway and Transportation Research and Development Vol. 25(10) (2008), p.9~12, in Chinese.

[7] Yiqiu Tan, Fengchen Chen, Zejiao Dong et al.: Journal of Dalian Maritime University Vol. 34(4) (2008), p.119~122, in Chinese.

[8] Yiqiu Tan, Zejiao Dong, Gengliang Tian et al.: Journal of Civil, Architectural & Environmental Engineering Vol. 31(2) (2009), p.100~104, in Chinese.