Journal of the Architectural Institute of Korea (대한건축학회논문집)

Architectural Institute of Korea (대한건축학회)
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A Proposal of Wind Pressure Coefficients for Structural Frame Design of Dome Roof Structures with Opening

개방형 돔 지붕 구조물의 구조골조 설계용 풍압계수 제안

  • Cheon, Dong-Jin (Smart Building Technology Research Institute, Seoul National University of Science and Technology) ;
  • Kim, Yong-Chul (Dept. of Engineering, Architecture Course, Tokyo Polytechnic University) ;
  • Yoon, Sung-Won (School of architecture, Seoul National University of Science and Technology)
  • 천동진 (서울과학기술대학교 스마트건축기술연구소) ;
  • 김용철 (동경공예대학교 공학과 건축코스) ;
  • 윤성원 (서울과학기술대학교 건축학부)
  • Received : 2024.04.13
  • Accepted : 2024.05.21
  • Published : 2024.06.30
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Abstract

In this study, wind tunnel tests were conducted on a dome roof with openings, considering various shapes and power-law index parameters, to investigate the characteristics of the mean wind pressure distribution. First, the characteristics of the mean net pressure under various shapes and power-law indices were analyzed. The changes in turbulence intensity resulting from variations in shape and power-law index were observed to influence the mean net pressure coefficients in the windward area. However, the mean net pressure coefficients remained similar in the remaining areas regardless of turbulence intensity. Comparing the experimental values with the wind pressure coefficients based on the current wind load standard (KDS 41 12 00), it was found that the standard overestimates by up to 10.4 times. Therefore, pressure coefficients reflecting the pressure distribution characteristics of open dome roofs were proposed.

Keywords

Acknowledgement

이 연구는 서울과학기술대학교 교내 일반과제 연구비 지원 및 2023년도 동경공예대학교 풍공학센터 공동연구(2023 Fiscal Year Wind Engineering Research Center Joint Usage/Research Center)(과제번호 23233001)의 연구비 지원에 의한 결과 일부임.

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