http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : 오우훈 (검색결과 6 건)
- 무료
- 기관 내 무료
- 유료
-
반복하중을 받는 경량 H-형강 유공보의 소성거동 및 국부좌굴
오우훈,김용익,김철환,이은택 대한건축학회 2001 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.21 No.2
Many researches have been performed to describe the elastic and inelastic behavior of H-shaped beams with web openings, and were generally concentrated on the uniaxial loading conditions. With those results of researches, the formulae for design of beams with web openings considering local buckling have been proposed by Darwin. Though the formulae are so simple and useful to apply to real situation, it needs more research on cyclic loading condition. In this experimental study, a total of seven H-shaped beams with circular web openings under cyclic loading condition were investigated. The dimension criteria are based on the formulae proposed by Darwin. The suitability existing design formulae, the effects of plastic hinges on beams with web openings, the local bucking around the web openings to the beam strength under cyclic loading were also investigated through the observation of the behavior of these beams with various dimensional openings.
-
건축용 타워크레인 마스트의 횡방향 지지요소인 월타이 부재력 특성곡선
고광일,오우훈,이은택,Ko, Kwang IL,Oh, W.H.,Lee, E.T. 한국강구조학회 2006 韓國鋼構造學會 論文集 Vol.18 No.6
Tower crane's wall tie is generally used for extending of mast height according to rising of lifting height. In order to get wall tie member force this problem, this study concerning wall tie is based on load data described in manual book of 290HC model. This study made the equation of wall tie member force and computer programming for calculating wall tie member force and then get ${\theta}-P$ curves(angle-wall tie force). After considering the ${\theta}-P$ curves, optimum angle range ($48.4^{\circ}{\sim}77.2^{\circ}$) about wall ties (A), (C) members was obtained. Member force of wall tie (B) was changed from tension to compression or from compression to tension at $74^{\circ}$ in service and $54^{\circ}$ in out of service. When both horizontal force($H_A$) and torsional moment ($M_D$) were varied from (+) to (-), wall tie force(A, B, C) were changed almost symmetrically about ${\theta}$-axis. Because this study was based on wall tie analysis conditions, wall tie members in symmetric and ideal geometry shape used for analizing wall tie of tower crane, it is necessary to have more careful verification in order to apply generally the results of this study. 타워크레인의 횡방향 지지와 마스트의 횡강성 및 강도를 확보하기 위하여 횡하중 저항요소로서 사용되는 것이 월타이(wall tie)이다. 본 연구에서는 국내에서 가장 많이 사용되고 있는 독일 립헬사의 T형 타워크레인(기종 290HC, 작업반경: 70m, 인양하중: 12tf)을 대상으로 하고 마스트 및 월타이의 사용부재는 H형강보 구조의 구조물을 모델로 선정하여 월타이의 부재력, 월타이의 각도변화 및 각도범위에 따른 부재력의 변화를 분석하여, 실용적이고 안전한 월타이의 각도범위를 제안하여 현장기술자가 최적의 월타이를 배치할 수 있도록 하였다. 본 연구를 통하여 건축용 타워크레인의 훅크양정을 증대시키기 위하여 설치되는 횡방향지지요소인 월타이의 부재력 계산식을 구하고, 이를 프로그래밍하여 마스트 중심과 월타이 브라켓 간 거리를 변화시키면서, 월타이 각도별 월타이 부재력을 반복계산하여 월타이 부재력 특성곡선을 그리고 이를 분석하였다.
-
반복하중을 받는 경량 H형강 유공보의 소성거동 및 국부좌굴
이은택,오우훈 중앙대학교 건설산업기술연구소 2002 건설산업기술연구소 논문집 Vol.3 No.-
Many researches have been performed to describe the elastic and inelastic behavior of H-shaped beams with web openings, and were generally concentrated on the uniaxial loading conditions. With those results of researches, the formulae for design of beams with web openings considering local buckling have been proposed by Darwin. Though the formulae are so simple and useful to apply to real situation, it needs more research on cyclic loading condition. In this experimental study, a total of seven H-shaped beams with circular web openings under cyclic loading condition were investigated. The dimension criteria are based on the formulae proposed by Darwin. The suitability existing design formulae, the effects of plastic hinges on beams with web openings, the local bucking around the web openings to the beam strength under cyclic loading were also investigated through the observation of the behavior of these beams with various dimensional openings.
-
반복하중을 받는 H형강 유공보의 소성 및 국부좌굴 거동
이은택,김철환,오우훈,Lee, Eun Taek,Kim, Cheol Hwan,Oh, Woo Hun 한국강구조학회 2003 韓國鋼構造學會 論文集 Vol.15 No.3
유공부재의 탄성 및 비탄성 거동을 나타내기 위하여 많은 연구가 이루어져왔으나 단축하중상태의 연구에 집중되어있는 실정이다. 또한, 국부좌굴을 고려한 유공보 설계에 대한 식들은 일반적으로 Darwin의 연구결과를 토대로 하여 사용되고 있으나, 그 연구결과가 단조하중에 집중되어있어 반복하중과 국부좌굴을 고려한 연구의 필요성이 제기되었다. 따라서, 본 연구에서는 반복하중상태에서의 7개의 원형유공보에 대한 실험이 행해졌다. 실험체의 형상 및 변수는 Darwin에 의해 제안된 설계과정에 기초를 두었다. 본 실험을 통하여, 기존 설계식의 타당성, 소성힌지의 영향, 유공 부분의 반복국부좌굴의 영향 등이 관찰 연구되었다. Many researches have been conducted to describe the elastic and inelastic behavior of H-shaped beams with web openings, and were generally concentrated on the uniaxial loading conditions. With previous research results, the formulae for the design of beams with web openings, considering local buckling, have been proposed by Darwin. Although the formulae are so simple and useful to apply to real situations, it needs more research on cyclic loading conditions. In this experimental study, a total of seven H-shaped beams with circular web openings under cyclic loading conditions were investigated. The dimension criteria were based on the formulae proposed by Darwin. The suitability of the existing design formulae, the effects of plastic hinges on beams with web openings, and the local bucking around the web openings to the beam strength under cyclic loading were also investigated through by the observations of the behavior of these beams with various dimensional openings.
-
-
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
