http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
수치해석기법을 이용한 초고층 건축물의 풍하중 저감형 형상 최적화
임사랑(Yim Sa-Rang),조정훈(Cho Jeong-Hoon),이경수(Lee Kyung-Su),한상을(Han Sang-Eul) 대한건축학회 2011 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.31 No.2(구조계)
The wind load and pressure depend on various type of buildings. The wind load is dominant in high-rise buildings. Therefore, The shape of the high-rise building is very important to determine the wind load design factor. Recently, the free form shape of high-rise buildings are increasing. But the wind load of the free form shape cannot be measured exactly by design code. In this study, using numerical analysis techniques to predict the wind force and pressure. Accordingly, The wind load reduction model is made by shape optimization process compares the shape and the actual building.
비정형 초고층 건축물의 풍하중 형상 최적화에 관한 수치해석적 연구
임사랑(Yim, Sa-Rang),조정훈(Cho, Jeong-Hoon),이경수(Lee, Kyung-Su),한상을(Han, Sang-Eul) 대한건축학회 2012 大韓建築學會論文集 : 構造系 Vol.28 No.11
Lateral displacement of high-rise buildings typically happens due to the wind load. The control of lateral behavior is one of the very important considering points of high-rise structural design. Wind speed, pressure and flow depend on the shape of the buildings. Recently, the free form high-rise buildings are increasing. But the exact calculation of wind load by KBC-standard is very difficult because of atypical shape of high-rise building. In this paper, to find out the structural behavior of wind load on free form high-rise buildings by numerical methods, using CFD(Computational Fluid dynamics) analysis, the distribution of wind pressure acting on the rigid body are examined. And using FSI(Fluid-Structure Interaction) analysis is applied in order to figure out the structural behavior. In this way, the optimized shape for the reduction of wind load is found and derived from numerical method are compared with the shape of the actual building characteristics of behavior. So, we conclude that CFD and FSI numerical method can be applied effectively to decide the optimized shape of free form high rise building to reduce the wind load.
단방향 FSI 해석을 이용한 초고층 건축물의 풍하중 저감형 형상 최적화
임사랑(Yim, Sa-Rang),김효진(Kim, Hyo-Jin),한상을(Han, Sang-Eul) 대한건축학회 2015 大韓建築學會論文集 : 構造系 Vol.31 No.1
In consideration of the aerodynamic characteristics of the wind, the shape of the building is in a very close relationship with the wind problems. We know through preceding studies that large negative pressure is generated in the corner of the side face of the building, thus modified corner is effective in reducing the wind load. Preceding studies were performed in wind tunnel test. On the other hand, we figure out the behavior characteristics of the building by the wind through the numerical analysis simulation. Study models with certain height were carried out by applying modified corner. We compare the analytical and experimental results of various modified corners model and find the most optimized shapes of corner on wind load reduction. Finally, we prove to optimize the shape of the actual building by applying 1-way FSI analysis.
수치해석시뮬레이션을 이용한 문학경기장 지붕구조물의 풍하중 영향 평가
조정훈(Cho Jeong-Hoon),임사랑(Yim Sa-Rang),이경수(Lee Kyung-Soo),한상을(Han Sang-Eul) 대한건축학회 2011 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.31 No.2(구조계)
Recently, the trends in the shape of tall buildings and large span spatial structures can be characterized as freeform shape. Especially, three-dimensional surface structure such as the shells and membrane structures is difficult to apply the wind load due to the complexity of the shape and the thin thickness. According to codes for wind resisting design, The structures which is difficult to calculate wind load, are allowed to perform the wind tunnel experiment or analysis methods. so, In this study, Mun-Hak stadium roof structure of the typical membrane structures was analyzed for the wind pressure characteristic against state of the damaged roof membrane caused by Hurricane Kompas and original state using CFD(Computational Fluid Dynamic).
CFD 해석에 의한 도시의 풍환경 영향 평가 및 해석 방법에 관한 연구
조정훈(Cho, Jeong-Hoon),임사랑(Yim, Sa-Rang),이경수(Lee, Kyung-Su),한상을(Han, Sang-Eul) 대한건축학회 2012 大韓建築學會論文集 : 構造系 Vol.28 No.7
Recently, Artificial and irregular wind load is being occured because of the high-rise and high-density construction trends in the city. The wind environment problem of city is one of the heat island phenomenon causes. In the past, the city was focused on development of scale. But nowadays, in the environmental aspects of residents and pedestrians, the wind environmental awareness is growing. The three methods of wind environmental assessment are such as numerical methods, experimental methods and analytical methods. But, the numerical method by measure is nothing but impact assessment on the current state of the city can"t be a new alternative design assessment aspects of wind environmental improvement. So, the experimental method or the analytical method must be solve this problem. This paper show the reliability of CFD(computational fluid dynamics) analysis by comparing analytical result data with wind tunnel test result data based on the wind factor of measured data. Through this study, the applicability of CFD analysis that understand three-dimensional airflow characteristics demonstrated on environmental impact assessment is demonstrated. In this study, analytical results and wind tunnel results tend to match measured data results. as a result, We deem that the sufficient wind environmental assessment by CFD analysis is possible from the planning stage of large complex and high-rise buildings.