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A platform for research: civil engineering, architecture and urbanism
Mechanical Behavior Analysis of Asphalt Pavement Based on Measured Axial Load Data
https://orcid.org/http://orcid.org/0000-0001-6635-7852
The objective of this study is to clarify the mechanical response behavior of each structural layer of asphalt pavement under actual traffic load and the variation law of related mechanical parameters. In this study, the traffic volume of a high-grade highway in China from 2020 to 2021, and the characteristics of traffic flow were clarified. Meanwhile, the axle load detection equipment was used to measure the axle load of trucks in the investigated, and the axial load spectrum of these trucks was established based on the measured data. According to the actual traffic volume, the equivalent axle number of accumulated standard axle load of BZZ-100 is calculated, and the calculation model is established using finite element software. The variation law of rut depth on road surface, tensile strain and shear stress in asphalt pavement and tensile stress at base layer (including base layer) under different axle load times is analyzed. The results of traffic volume survey and finite element analysis show that the annual average growth rate of freight cars from 2020 to 2021 is 7.4%; the cumulative standard axle load equivalent number in 2021 is 1.06 times higher than that in 2020. The maximum tensile strain and maximum shear stress of each structural layer of asphalt pavement are located in the depth of 3-5 cm of pavement structure, that is, the bottom of the upper layer of asphalt pavement. When the number of axle load increases from 3.4 × 107 to 7.0 × 107, the bottom base bending tensile stress increases 1.74 times and the base bending tensile stress increases 1.72 times.
Mechanical Behavior Analysis of Asphalt Pavement Based on Measured Axial Load Data
https://orcid.org/http://orcid.org/0000-0001-6635-7852
The objective of this study is to clarify the mechanical response behavior of each structural layer of asphalt pavement under actual traffic load and the variation law of related mechanical parameters. In this study, the traffic volume of a high-grade highway in China from 2020 to 2021, and the characteristics of traffic flow were clarified. Meanwhile, the axle load detection equipment was used to measure the axle load of trucks in the investigated, and the axial load spectrum of these trucks was established based on the measured data. According to the actual traffic volume, the equivalent axle number of accumulated standard axle load of BZZ-100 is calculated, and the calculation model is established using finite element software. The variation law of rut depth on road surface, tensile strain and shear stress in asphalt pavement and tensile stress at base layer (including base layer) under different axle load times is analyzed. The results of traffic volume survey and finite element analysis show that the annual average growth rate of freight cars from 2020 to 2021 is 7.4%; the cumulative standard axle load equivalent number in 2021 is 1.06 times higher than that in 2020. The maximum tensile strain and maximum shear stress of each structural layer of asphalt pavement are located in the depth of 3-5 cm of pavement structure, that is, the bottom of the upper layer of asphalt pavement. When the number of axle load increases from 3.4 × 107 to 7.0 × 107, the bottom base bending tensile stress increases 1.74 times and the base bending tensile stress increases 1.72 times.
Mechanical Behavior Analysis of Asphalt Pavement Based on Measured Axial Load Data
https://orcid.org/http://orcid.org/0000-0001-6635-7852
The objective of this study is to clarify the mechanical response behavior of each structural layer of asphalt pavement under actual traffic load and the variation law of related mechanical parameters. In this study, the traffic volume of a high-grade highway in China from 2020 to 2021, and the characteristics of traffic flow were clarified. Meanwhile, the axle load detection equipment was used to measure the axle load of trucks in the investigated, and the axial load spectrum of these trucks was established based on the measured data. According to the actual traffic volume, the equivalent axle number of accumulated standard axle load of BZZ-100 is calculated, and the calculation model is established using finite element software. The variation law of rut depth on road surface, tensile strain and shear stress in asphalt pavement and tensile stress at base layer (including base layer) under different axle load times is analyzed. The results of traffic volume survey and finite element analysis show that the annual average growth rate of freight cars from 2020 to 2021 is 7.4%; the cumulative standard axle load equivalent number in 2021 is 1.06 times higher than that in 2020. The maximum tensile strain and maximum shear stress of each structural layer of asphalt pavement are located in the depth of 3-5 cm of pavement structure, that is, the bottom of the upper layer of asphalt pavement. When the number of axle load increases from 3.4 × 107 to 7.0 × 107, the bottom base bending tensile stress increases 1.74 times and the base bending tensile stress increases 1.72 times.
Mechanical Behavior Analysis of Asphalt Pavement Based on Measured Axial Load Data
Int. J. Pavement Res. Technol.
Dezhong, Yu (author) / Qianqian, Zhao (author) / Luyu, Zhang (author) / Senming, Ye (author)
International Journal of Pavement Research and Technology ; 17 ; 460-469
2024-03-01
10 pages
Article (Journal)
Electronic Resource
English
Mechanical Behavior Analysis of Asphalt Pavement Based on Measured Axial Load Data
| Springer Verlag | 2024
| Trans Tech Publications | 2011