Wind and Structures

  • 제38권6호
  • /
  • Pages.477-492
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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

Wind load characteristics and effects of 1000kV UHV substation frame based on HFFB

  • Hao Tang (College of Civil Engineering, Heilongjiang University) ;
  • Fanghui Li (College of Civil Engineering, Heilongjiang University) ;
  • Xudong Zhi (Key Lab of Structures Dynamic Behavior and Control (Harbin Institute of Technology), Ministry of Education) ;
  • Jie Zhao (The Second Supervision and Inspection Station of Construction Engineering Quality of Anhui Province)
  • 투고 : 2022.03.04
  • 심사 : 2024.05.13
  • 발행 : 2024.06.25
⟨ 이전 논문 다음 논문 ⟩

초록

This study presents a comprehensive investigation of wind load characteristics and wind-induced responses associated with different wind incidence angles and terrains of the 1000kV UHV substation frame. High-frequency force balance (HFFB) force measurement wind tunnel tests are conducted on the overall and segment models to characterize wind loads characteristics such as the aerodynamic force coefficients and the shape factors. The most unfavorable wind incidence angles and terrains for aerodynamic characteristics are obtained. A finite element model of the substation frame is built to determine the wind-induced response characters based on the aerodynamic force coefficients and bottom forces of the segment models. The mean and root mean square (RMS) values of displacement responses at different heights of the frame structure are compared and analyzed. The influence of wind incidence angle and terrains on wind-induced responses is also examined. The displacement responses in terms of the crest factor method are subsequently transformed into dynamic response factors. The recommended values of dynamic response factors at four typical heights have been proposed to provide a reference for the wind resistance design of such structures.

키워드

과제정보

The research described in this paper were financially supported by Shandong Electric Power Engineering Consulting Institute Co., Ltd. NO.37-2018-24-K0005 and National Natural Science Foundation of China. NO.51578234.

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