Mechanical response of interlayer structural shear performance of asphalt pavement with functional layer considering interlayer contact state
To explore the mechanical response of asphalt pavement structure with functional layer, and make asphalt pavement have better service performance, a structural combination form of asphalt pavement with functional layers is proposed in this study, and the interlayer structural mechanical response ana...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-07-01
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| Series: | Case Studies in Construction Materials |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214509523001134 |
| _version_ | 1797798924586582016 |
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| author | Tengfei Nian Shuwang Li Ping Li Jinggao Li Zhao Han Shiwen Xue |
| author_facet | Tengfei Nian Shuwang Li Ping Li Jinggao Li Zhao Han Shiwen Xue |
| author_sort | Tengfei Nian |
| collection | DOAJ |
| description | To explore the mechanical response of asphalt pavement structure with functional layer, and make asphalt pavement have better service performance, a structural combination form of asphalt pavement with functional layers is proposed in this study, and the interlayer structural mechanical response analysis is carried out based on the theory of a multi-layer flexible layered system. The study first suggests a combined method of stress-strain and displacement at each point of the three-dimensional asphalt pavement structure under the combined compressive-shear load. Secondly, the shear strength of asphalt pavement structure with functional layer under the influence of compressive-shear combined loads, different longitudinal slopes, overload loads, and temperature-elastic modulus under different interlayer contact states are analyzed. Finally, the distribution of structural shear strain of asphalt pavement with a functional layer under different conditions is investigated. The results show that in the asphalt pavement structure with a functional layer, the functional layer is the weak layer of the base-surface layer, and the interlayer shear stress will change abruptly under the combined compression-shear load. The maximum shear stress and extreme strain values are mainly concentrated in the upper and middle surface layers, and they show a consistent trend of first increasing and then decreasing with the increase of the pavement depth. The functional layer can be used as a temperature buffer zone so that the asphalt pavement has good contact performance between the surface and base at 76 ℃ and good shear strength. The results of this study provide a theoretical foundation for studying the interlaminar shear resistance of asphalt pavement with functional layers. |
| first_indexed | 2024-03-13T04:11:10Z |
| format | Article |
| id | doaj.art-19696ed3aca3457e87736e3c61131e09 |
| institution | Directory Open Access Journal |
| issn | 2214-5095 |
| language | English |
| last_indexed | 2024-03-13T04:11:10Z |
| publishDate | 2023-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Construction Materials |
| spelling | doaj.art-19696ed3aca3457e87736e3c61131e092023-06-21T06:53:51ZengElsevierCase Studies in Construction Materials2214-50952023-07-0118e01934Mechanical response of interlayer structural shear performance of asphalt pavement with functional layer considering interlayer contact stateTengfei Nian0Shuwang Li1Ping Li2Jinggao Li3Zhao Han4Shiwen Xue5School of Civil Engineering, Lanzhou University of Technology, Lanzhou Gansu, China; Gansu Luqiao Shanjian Technology Co., Ltd, Lanzhou Gansu, China; Corresponding author at: School of Civil Engineering, Lanzhou University of Technology, Lanzhou Gansu, China.School of Civil Engineering, Lanzhou University of Technology, Lanzhou Gansu, ChinaSchool of Civil Engineering, Lanzhou University of Technology, Lanzhou Gansu, ChinaSchool of Civil Engineering, Lanzhou University of Technology, Lanzhou Gansu, ChinaSchool of Civil Engineering, Lanzhou University of Technology, Lanzhou Gansu, ChinaSchool of Civil Engineering, Lanzhou University of Technology, Lanzhou Gansu, ChinaTo explore the mechanical response of asphalt pavement structure with functional layer, and make asphalt pavement have better service performance, a structural combination form of asphalt pavement with functional layers is proposed in this study, and the interlayer structural mechanical response analysis is carried out based on the theory of a multi-layer flexible layered system. The study first suggests a combined method of stress-strain and displacement at each point of the three-dimensional asphalt pavement structure under the combined compressive-shear load. Secondly, the shear strength of asphalt pavement structure with functional layer under the influence of compressive-shear combined loads, different longitudinal slopes, overload loads, and temperature-elastic modulus under different interlayer contact states are analyzed. Finally, the distribution of structural shear strain of asphalt pavement with a functional layer under different conditions is investigated. The results show that in the asphalt pavement structure with a functional layer, the functional layer is the weak layer of the base-surface layer, and the interlayer shear stress will change abruptly under the combined compression-shear load. The maximum shear stress and extreme strain values are mainly concentrated in the upper and middle surface layers, and they show a consistent trend of first increasing and then decreasing with the increase of the pavement depth. The functional layer can be used as a temperature buffer zone so that the asphalt pavement has good contact performance between the surface and base at 76 ℃ and good shear strength. The results of this study provide a theoretical foundation for studying the interlaminar shear resistance of asphalt pavement with functional layers.http://www.sciencedirect.com/science/article/pii/S2214509523001134Interlayer contact stateCompression shear combined loadLongitudinal slopeOverload loadModulus of elasticity |
| spellingShingle | Tengfei Nian Shuwang Li Ping Li Jinggao Li Zhao Han Shiwen Xue Mechanical response of interlayer structural shear performance of asphalt pavement with functional layer considering interlayer contact state Case Studies in Construction Materials Interlayer contact state Compression shear combined load Longitudinal slope Overload load Modulus of elasticity |
| title | Mechanical response of interlayer structural shear performance of asphalt pavement with functional layer considering interlayer contact state |
| title_full | Mechanical response of interlayer structural shear performance of asphalt pavement with functional layer considering interlayer contact state |
| title_fullStr | Mechanical response of interlayer structural shear performance of asphalt pavement with functional layer considering interlayer contact state |
| title_full_unstemmed | Mechanical response of interlayer structural shear performance of asphalt pavement with functional layer considering interlayer contact state |
| title_short | Mechanical response of interlayer structural shear performance of asphalt pavement with functional layer considering interlayer contact state |
| title_sort | mechanical response of interlayer structural shear performance of asphalt pavement with functional layer considering interlayer contact state |
| topic | Interlayer contact state Compression shear combined load Longitudinal slope Overload load Modulus of elasticity |
| url | http://www.sciencedirect.com/science/article/pii/S2214509523001134 |
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