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Effects of Number of Sides on Aerodynamic Characteristics of Super-Tall Buildings

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  • URLhttps://db.koreascholar.com/Article/Detail/281644
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한국공간구조학회지 (JOURNAL OF THE KOREAN ASSOCIATION FOR AND SPATIAL STRUCTURES)
한국공간구조학회 (Korean Association for Spatial Structures)
초록

A series of wind tunnel tests were conducted on 7 super-tall buildings with various polygon cross-sections, including triangle, square, pentagon, hexagon, octagon, dodecagon, and circular. The primary purpose of the present study is to investigate the effect of increasing number of sides on aerodynamic characteristics for super-tall buildings. Wind tunnel tests were conducted under the turbulent boundary layers whose power-law exponent is 0.27. Fluctuating wind pressures from more than 200 pressure taps were recorded simultaneously, and time series of overturning moments were calculated considering tributary area of each pressure tap. The results show that the overturning moment coefficients and the spectral values decrease with increasing number of sides, and the largest mean and fluctuating overturning moments were found for the triangular super-tall building, and the largest spectral values were found for the square super-tall building. The analysis should be conducted more in detail, but currently it can be roughly said that there seems to be a little differences in the aerodynamic characteristics for the super-tall buildings whose number of sides is larger than 5 or 6.

목차
 Abstract  1. 서 론  2. 풍동실험개요  3. 실험결과 및 고찰   3.1 평균 및 변동 전도모멘트계수   3.2 전도모멘트계수의 파워스펙트럼  4. 결론  감사의 글  참고문헌
저자
  • 김용철(고려대학교, 건축사회환경공학부, 연구교수) | Kim, Yong-Chul
  • 반디 에스와라 쿠마( 동경공예대학, 풍공학 연구센터, 박사과정) | 반디 에스와라 쿠마
  • 유키오 타무라( 동경공예대학, 풍공학 연구센터, 교수) | 유키오 타무라
  • 요시다 아키히또( 동경공예대학, 풍공학 연구센터, 준교수) | 요시다 아키히또
  • 윤성원( 서울과학기술대학교, 건축학부, 교수) | 윤성원