비정형 초고층 건물의 풍응답 평가

다국어 초록 (Multilingual Abstract)

One characteristic of modern tall buildings is that the building shapes are irregular and unconventional. The irregular and unconventional building shapes are resurrection of an old characteristic, motivated by new trends in architecture, but it has advantage of mitigating across-wind responses, which is a major factor in safety and habitability of tall buildings. Many studies on aerodynamic modification have been carried out, but most of the studies have forced on the corner modification, while the studies on taper and setback are limited. Changes of building shapes through taper and setback suppress the strong and periodic vortex shedding, and encourage the flow around a building more 3 dimensionalities, which results in reducing the wind-induced excitations. The results show that the reduction of mean along-wind and fluctuating across-wind overturning moments are apparent in the suburban area than in urban area. A series of the response analyses, the rms displacement responses of the tall buildings with height variations are reduced greatly, while the rms acceleration responses are not necessarily reduced. Lastly, the effect of different natural frequencies of tapered and setback tall buildings on wind-induced response are extensively discussed.

목차 (Table of Contents)

• Abstract
• 1. 서론
• 2. 풍동실험개요
• 3. 결과 및 고찰
• 4. 결론
• 감사의 글
• 참고문헌

참고문헌 (Reference)

1 조지은, "테이퍼 고층건물의 풍진동응답 평가" 대한건축학회 22 (22): 91-88, 2006

2 하영철, "고층 건축물의 모서리 형상 변화에 따른 풍진동 저감효과에 관한 연구" 17 (17): 3-10, 2001

3 김동우, "超高層建築物의 風荷重 低減을 위한 空力學的 方法 - 모서리변화를 중심으로 -" 대한건축학회 20 (20): 3-10, 2004

4 "http://www.skyscrapercenter.com/List/future-tallest-100-buildings"

5 Kim, Y. C., "Wind response characteristics for habitability of tall buildings in Japan" John Wiley and Sons Ltd 17 (17): 683-718, 2008

6 Tanaka, 　H., "Experimental investigation of aerodynamic forces and wind pressures acting on tall buildings with various unconventional configurations" 107-108 : 179-191, 2011

7 Kim, Y., "Characteristics of aerodynamic forces and pressures on square plan buildings with height variations" ELSEVIER SCIENCE BV 98 (98): 449-465, 2010