Wind and Structures

  • 제38권6호
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  • Pages.411-425
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  • 2024
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  • 1226-6116(pISSN)
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  • 1598-6225(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

DOI QR Code

Aerodynamic parameters selection and windbreak mechanism of wind barrier for high-speed railway bridge

  • Yujing Wang (School of traffic engineering, Shandong Jianzhu University) ;
  • Weiwei Guo (School of Civil Engineering, Beijing Jiaotong University) ;
  • He Xia (School of Civil Engineering, Beijing Jiaotong University) ;
  • Qinghai Guan (School of traffic engineering, Shandong Jianzhu University) ;
  • Shaoqin Wang (School of Science, Beijing University of Civil Engineering and Architecture)
  • 투고 : 2022.03.08
  • 심사 : 2024.04.30
  • 발행 : 2024.06.25
⟨ 이전 논문 다음 논문 ⟩

초록

To investigate the optimal aerodynamic parameters of wind barriers for the T-beam of high-speed railway (HSR) bridge and the wind field of the wind barrier-train-bridge system, the three-component forces of the system and the wind pressure on the vehicle surface were tested and analyzed through the sectional model wind test. The effects of wind velocity, with/without wind barrier, the height of wind barrier, and the air permeability of the wind barrier on the aerodynamic characteristics of the train-bridge system are discussed. Additionally, a CFD numerical model is constructed to evaluate the wind environment of the bridge surface with/without the wind barrier, and the impact of wind barrier on the running safety of vehicles are analyzed. Comprehensively considering the running safety of the train and the wind-resistant stability of the bridge, it is more appropriate to set the wind barrier height H as 3.5 m and the porosity 𝛽 as 30% respectively.

키워드

과제정보

The authors are grateful for the Shandong Provincial Natural Fund Project (ZR2023QE066, ZR2021ME104), the Doctoral Fund Project (NO.X20024Z), the National Science Foundation of China (Grant NO.51878036), and the projects "Study on the New Configuration and Decoration of Landscape Bridge Structures (Materials) Considering Wind Resistance Safety and Environmental Coordination (20220627KFD)" and "Bridge Structure Settlement Monitoring Technology and Data Platform (20231101KFD)".

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