Mechanical Response Analysis of Airport Composite Pavement under Moving Load
[1]GUO Chengchao,ZHANG Shunji,ZHOU Hongchang,et al.Mechanical Response Analysis of Airport Composite Pavement under Moving Load[J].Journal of Zhengzhou University (Engineering Science),2023,44(04):113-119.[doi:10.13705/j.issn.1671-6833.2023.01.015]
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
44卷
Number of periods:
2023 04
Page number:
113-119
Column:
Public date:
2023-06-01
- Title:
- Mechanical Response Analysis of Airport Composite Pavement under Moving Load
- Keywords:
- composite pavement; multi-layer overlay; finite element model; moving load; mechanical response
- CLC:
- U416.223；V351.11
- DOI:
- 10.13705/j.issn.1671-6833.2023.01.015
- Abstract:
- In order to study the mechanical properties of the composite pavement, a finite element model of the composite pavement is established based on the overlay reconstruction project of an airport in the central plains region. Through the established composite pavement monitoring system, the mechanical response of the pavement under the action of the target aircraft type is extracted and compared with the simulation data to verify the rationality of the model. Under the action of moving load, the mechanical response of pavement considering different types of aircraft, different interlayer bonding states and different horizontal forces is analyzed. It is found that under the action of B737-800, B767-300ER and B777-300ER, the maximum shear stress of asphalt overlay appears in the upper layer, and with the increase of the number of rounds, the mechanical index of pavement gradually increases, in which the transverse tensile strain at the bottom of asphalt layer and the tensile stress at the bottom of cement concrete slab change significantly; With the increase of interlayer bonding coefficient, the pavement mechanical index shows a decreasing trend, and its influence degree gradually decreases along the pavement depth direction; When there is emergency horizontal braking force, the maximum shear stress between asphalt layers increases by 11. 84%, the maximum transverse tensile strain at the bottom of asphalt layer increases by 6. 05%, and the longitudinal tensile strain increases by 9. 68%.
- References:
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Last Update:
2023-07-01