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건물 옥상에 설치되는 옥상 간판의 피크풍압 분포에 대한 연구
남병희,유장열,이남훈,유기표,Nam, Byung-Hee,You, Jang-Youl,Lee, Nam-Hun,You, Ki-Pyo 한국공간구조학회 2018 한국공간구조학회지 Vol.18 No.2
Unlike other types of outdoor advertisements, rooftop signboards are installed on the roofs of buildings, rather than on their outer walls. This means that the area of a rooftop signboard is commonly larger than that of a general outdoor signboard. Moreover, as such signboards are greatly influenced by the wind, they can suffer a lot of damage from typhoons and strong winds every year. However, there is no wind load specification for rooftop signboards. In this study, wind pressure experiments were conducted to investigate the peak wind pressure on each side of rooftop signboards installed on the roofs of 5-15 story buildings in a city center. The minimum peak wind pressure coefficient was -3.0 at the bottom edges of the front and back of the rooftop signboards and -2.0 along the entire length of the sides. As the height of the rooftop signboard increased with the increasing height of the buildings, the peak value was found to be larger than the absolute peak value for the minimum peak wind pressure coefficient. The maximum and minimum peak wind pressure distributions of the rooftop outdoor signboards were influenced by the position of the signboard and the wind angle.
남병희(Nam, Byung-Hee),유장열(You, Jang-Youl),유기표(You, Ki-Pyo),김영문(Kim, Young-Moon) 대한건축학회 2018 대한건축학회 학술발표대회 논문집 Vol.38 No.1
Means that the area of a rooftop signboard is commonly larger than that of a general outdoor signboard. Moreover, as such signboards are greatly influenced by the wind, they can suffer a lot of damage from typhoons and strong winds every year. However, there is no wind load specification for rooftop signboards. In this study, wind pressure experiments were conducted to investigate the peak wind pressure on each side of rooftop signboards installed on the roofs of 5– 15 story buildings in a city center. The minimum peak wind pressure coefficient was –3.0 at the bottom edges of the front and back of the rooftop signboards and –2.0 along the entire length of the sides. As the height of the rooftop signboard increased with the increasing height of the buildings, the peak value was found to be larger than the absolute peak value for the minimum peak wind pressure coefficient.
도심내 온습도 특성에 대한 실측 데이터 분석 연구 - 광주광역시 중심으로 -
남병희(Nam, Byung-Hee),유장열(You, Jang-Youl),박민우(Park Min-Woo),유기표(You, Ki-Pyo) 대한건축학회 2022 대한건축학회 학술발표대회 논문집 Vol.42 No.2
In this study, temperature and humidity for one year were measured in the central area of Gwangju and compared with the meteorological data for analysis. A total of 16 points of high-rise area, temperature and humidity were measured using real-time measuring equipment. As a result, the largest temperature difference was observed in the season with the highest temperature such as winter<spring=autumn<summer and the humidity of the city by season in the temperature difference in the city center of the weather station by season. was higher than that of the meteorological station. This shows that the heat generated in the city does not go out and is stagnant. As a result of the measurement, it is judged that it is due to the difference in wind speed due to the airflow disturbance caused by the increase in the number of buildings.
남병희(Nam, Byung-Hee),유장열(You, Jang-Youl),김영문(Kim, Young-Moon),유기표(You, Ki-Pyo) 대한건축학회 2019 대한건축학회 학술발표대회 논문집 Vol.39 No.1
Every year in Korea, every time a strong wind like a typhoon occurs, the outer wall of the building and the exterior finish of the inside of the piloti frequently fall out, resulting in property damage. In this study, the distribution of the wind pressure distribution inside the piloti is analyzed by analyzing the characteristics of the air flow according to the height of the corner pillow and the urban and suburban areas. Experimental results show that the intensity of turbulent flow increases and the peak value of wind pressure in urban areas also increases. The peak wind gauge decreased from the inside to the outside. On the wall side, the minimum peak wind gauge occurred at the side where the air flow was flowing, and the ceiling was decreasing around the center.
건축물의 외장재에 사용되는 펀칭메탈에서 발생하는 풍소음
정다와(Jeong, Da-Wa),남병희(Nam, Byung-Hee),박민우(Park, Min-Woo),유장열(You, Jang-Youl),유기표(You, Ki-Pyo) 대한건축학회 2022 대한건축학회 학술발표대회 논문집 Vol.42 No.2
Recently, many high-rise buildings have been constructed, and the building wind around the high-rise buildings has caused changes in the wind velocity of the city. In addition, various types of exterior materials are used in urban areas as buildings with unique exterior have higher value as landmarks. As these two phenomena are combined, the possibility of generating wind-induced sound is increasing, while academic research on wind-induced sound is insufficient. In particular, it is ideal to conduct wind-induced sound research in a anechoic chamber wind tunnel, but it is not easy to find or have a dedicated wind tunnel facility in a situation where there is a lack of awareness of wind-induced sound. Therefore, the purpose of this study is to establish an experimental approach to wind-induced sound in general wind tunnel. And through data analysis, we intend to find practical ways to use it. This paper targets perforated plates used as exterior materials. the experimental model was life-sized, and wind-induced sound generated by different wind direction angles and wind velocity was measured.
기상측정을 위한 팔각형 적설 바람막이 팬스에 대한 성능실험 및 평가
유기표(You, Ki-Pyo),남병희(Nam, Byung-Hee),이천우(Lee, Chun-Woo) 대한건축학회 2013 大韓建築學會論文集 : 構造系 Vol.29 No.6
Meteorological Observatory installs measuring boards on the even ground of open space to measure the amount of snowfall. However it is very difficult to evaluate the accurate amount of snowfall because of the influence of wind. In order to measure snow fall, it was tried to identify the inside airflow of octagon wind fence which was not influenced by wind. We performed computing fluid dynamics, wind tunnel test and field measurement of width and types of octagon wind break fence to analyze airflow inside of the fence. According to the result, dual fence was better than mono fence in wind speed reduction such as more than 50%. The fence whose wind fence wings were fixed on the surface showed better results than the fence detaching the wings from the surface. The reduction of the wind speed was the highest in the middle of the dual wind fence with 4m width. In wind tunnel test results, the fence attached to the surface with 4m width showed better wind speed reduction at the center of the inside than the fence with 6m width. In the actual measurement, 4m fence showed the best effects in wind speed reduction.