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연직하중 시 드라이빙핀전용 전단연결재를 이용한 합성보의 내력
양일승,Yang, Il-Seung 대한건축학회 2011 대한건축학회논문집 Vol.27 No.9
Power actuated fasteners in sort of mechanical methods have appeared to be an alternative to metallurgical methods in the connection of H-beam and shear connector. Power actuated fasteners can be driven by power actuated tools or by pneumatically driven tools. This mechanical connection method has many advantages over metallurgical connection methods. First of all, a power supply is unnecessary and there are no concerns about an electrical accident. However, the handling of the mechanical connection method takes severs caution. Since the sound at the time of installation is loud, discretion is needed in a quiet place. Four specimens were tested so as to compare the structural behavior of the proposed composite beams with that of the classical composite beam in condition of vertical load. In the results, the proposed composite beam proposed in this paper, having shear connector using driving pins, showed sufficient plastic ductility and strength. And, yielding and maximum strength specimens in suggested composite beams using suggested shear connectors are 1.05~1.06 times than those of CB-SB specimen, which is composite beams using stud bolts.
드라이빙핀전용 전단연결재를 이용한 합성보의 탄소성 거동
양일승,오영호,이만재,Yang, Il-Seung,Oh, Young-Ho,Lee, Man-Jae 한국강구조학회 2012 韓國鋼構造學會 論文集 Vol.24 No.1
합성보는 철골보와 콘크리트슬래브를 스터드볼트로 일체화한 구조이며, 일반적으로 용접을 이용한 스터드볼트(Stud Bolts)가 연결재로 많이 사용된다. 그러나, 스터드볼트는 감전사고와 같은 전기재해나 용접불량 등 문제점을 가지고 있다. 따라서, 드라이빙핀을 이용한 기계적 접합이 대안으로 대두되고 있다. 본 연구는 드라이빙핀 전용 제안형 전단연결재를 이용한 합성보의 횡하중(지진하중이나 풍하중)시 구조적 성능을 평가하고자 한다. 기존형 합성보과 제안형 합성보는 안정된 탄소성 거동을 나타내었으며 기둥주변에서 콘크리트 압괴로 내력이 저하되었다. 따라서, 제안형 합성보는 기존형 합성보를 대체할 수 있을 것으로 판단된다. The adoption of a composite beam system is regarded as a simple but effective solution because it improves the overall stiffness, strength and stability of the structure by welding shear studs. However, welding shear studs poses problems including electric shock and weld defects. Mechanical methods have emerged as an alternative to metallurgical methods for connecting the H-beam and shear connector. Four specimens were tested in order to compare the structural behavior of the proposed composite beams with that of the classical composite beam given the condition of horizontal loading. With the original composite beam (FCB-SB specimen) using stud bolts, hysteresis loops are stable, but its strength decreased with the crashing of the concrete slab around the column. The suggested composite beams using shear connectors also yielded stable hysteresis loops. Consequently, use of the suggested composite beams instead of the original composite beam are recommended.
양일승(Il Seung Yang),조중현(Joong Hyun Cho) 한국관광연구학회 2014 관광연구저널 Vol.28 No.11
The purpose of this study was to study and analyze the cases of rural theme parks in Gwangju and Jeonnam using rural reservoirs, which are the major waterfront spaces in rural regions, to derive their performances and limitations and to suggest the measures to form rural theme parks using rural reservoirs and to revitalize their operation. As a result of case studies and analysis, there were performances such as the increase in amenity resources and visitors and cooperative operation with nearby villages and farm households. On the other hand, there were limitations such as lack of characteristics and differentiation of parks, lack of experience and amusement facilities with programs, high ratio of transit or simple visitors, and difficulties securing the financial resources for maintenance. In order to form and revitalize the rural theme parks using rural reservoirs, therefore, it is necessary to introduce unique and differentiated themes and facilities, expand the introduction of experience and amusement facilities, seed substantial ways to attract private funds, revitalize the development and operation of park programs, secure the budget for constant operation of parks, and participate the spontaneous management of local community residents.
효율성 측면에서 태양광 에너지 시설 최적입지에 관한 연구
양일승(Il-Seung Yang),안형순(Hyung-Soon An) 한국콘텐츠학회 2018 한국콘텐츠학회논문지 Vol.18 No.7
본 연구는 효율성 측면에서 태양광에너지 시설의 최적입지 조건을 찾아내고 이를 통해 향후 태양광 시설입지에 대한 정책적 시사점을 제시하고자 하였다. 이를 위하여 전라남도 지역에 입지한 92개 사례대상지를 선정하였다. 평균 발전시간을 종속변수로, 그리고 설비조건, 기상조건, 대지조건을 설명변수로 하여 회귀분석을 실시하였다. 분석결과, 유의미한 5개의 변수가 도출되었다. 첫째, 대지면적이 넓을수록 둘째, 하천·섬·바닷가 등에 입지할수록 셋째, 대지의 주 방향이 남향이 아닐수록 넷째, 평균풍속이 높을수록 다섯째, 농림지역이나 자연환경보전지역 등에 태양광시설이 입지할수록 발전효율이 높은 것으로 분석되었다. 본 연구는 통계자료 확보가능성과 설비종류에 따른 오류를 최소화하고, 전라남도 지역으로 연구를 한정함에 따라 사례 대상지가 많지 않은 점이 연구의 한계이다. 그럼에도 불구하고 향후 태양광시설의 최적입지를 선정하는데 중요한 정책적 함의를 제공하였다. The following study was conducted to determine the optimal location in terms of efficiency for solar energy facilities, and to propose a policy implications for the orientation of the installments. 92 cases in Jeollanam-do Province were selected. A regression analysis was performed between the average electricity generation time as the dependent variable, and the facility, weather and site conditions as the independent variables. As a result, 5 variables were deemed significant. Larger site areas, closer proximity to rivers, islands, oceans, etc., least south-oriented, higher average wind speed, and facilities in agricultural land use and natural environment conservation land use had the highest efficiency. This study minimized the possibility of secure databases and errors following facility types, and was limited in the number of sites studied, since this was only conducted in Jeollanam-do Province. Nevertheless, these conclusions still offer important policy implications for determining the most optimal location for solar energy facilities.