Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Study on Strain Characteristics of Long Longitudinal Slope Asphalt Pavement Surface
To study the changes in shear and tensile strains of asphalt pavement under vehicle moving loads on long longitudinal slopes, a structural model of asphalt pavement was established using Abaqus finite element calculation software. A single factor analysis was conducted on different slopes, driving speeds, temperatures, and braking coefficients. The calculation results show that the maximum shear strain increases with the increase of road slope, temperature, and braking coefficient, but decreases with the increase of driving speed; The maximum tensile strain increases with the increase of road slope, driving speed, and braking coefficient, but decreases with the increase of temperature. When the vehicle is driving smoothly, the maximum shear strain occurs at a distance of about 5cm from the road surface, and the maximum tensile strain occurs at a distance of 6cm from the road surface, both of which occur in the middle layer. In the design phase, targeted improvements can be made to the shear and tensile properties of the asphalt surface layer in the middle layer, in order to enhance the road performance of the asphalt surface layer in long and long longitudinal slopes. When the vehicle is braking, when the braking coefficient is high, the road surface will generate significant shear strain. In the design stage, it is necessary to improve the shear resistance of the upper layer of asphalt concrete in a targeted manner.
Study on Strain Characteristics of Long Longitudinal Slope Asphalt Pavement Surface
To study the changes in shear and tensile strains of asphalt pavement under vehicle moving loads on long longitudinal slopes, a structural model of asphalt pavement was established using Abaqus finite element calculation software. A single factor analysis was conducted on different slopes, driving speeds, temperatures, and braking coefficients. The calculation results show that the maximum shear strain increases with the increase of road slope, temperature, and braking coefficient, but decreases with the increase of driving speed; The maximum tensile strain increases with the increase of road slope, driving speed, and braking coefficient, but decreases with the increase of temperature. When the vehicle is driving smoothly, the maximum shear strain occurs at a distance of about 5cm from the road surface, and the maximum tensile strain occurs at a distance of 6cm from the road surface, both of which occur in the middle layer. In the design phase, targeted improvements can be made to the shear and tensile properties of the asphalt surface layer in the middle layer, in order to enhance the road performance of the asphalt surface layer in long and long longitudinal slopes. When the vehicle is braking, when the braking coefficient is high, the road surface will generate significant shear strain. In the design stage, it is necessary to improve the shear resistance of the upper layer of asphalt concrete in a targeted manner.
Study on Strain Characteristics of Long Longitudinal Slope Asphalt Pavement Surface
Lecture Notes in Civil Engineering
Feng, Guangliang (Herausgeber:in) / Li, Xu (Autor:in) / Liu, Weiqin (Autor:in) / Qin, Jinxi (Autor:in) / Zhao, Xiuxing (Autor:in) / Chen, Jie (Autor:in)
International Conference on Civil Engineering ; 2023 ; Nanchang, China
Proceedings of the 10th International Conference on Civil Engineering ; Kapitel: 39 ; 421-430
20.07.2024
10 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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