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반복하중을 받는 TEC-BEAM 철골브라켓 접합부 거동평가
주영규,김지영,김명한,정광량,김상대,Ju, Young Kyu,Kim, Ji Young,Kim, Myeong Han,Jung, Kwang Ryang,Kim, Sang Dae 한국강구조학회 2002 韓國鋼構造學會 論文集 Vol.14 No.1
고층 건물의 층고를 줄이기 위해, 역 T형강, PC 콘크리트 그리고 현장타설 콘크리트 슬래브로 이루어진 새로운 합성보로써 TEC-BEAM이 개발되었다. TEC-BEAM은 이전에 단순보 실험이 수행되었고, 우수한 거동을 보였다. 그러나 현장적용을 위해서는 TEC-BEAM의 상주주근을 정착시키기 위해 철골 브라켓을 이용하는 모멘트저항 접합부 상세가 요구되었다. 본 연구에서는 TEC-BEAM 접합부에 대한 3개의 실험체를 실험하였고 실험변수는 (1)횡철근 간격. (2)브라켓 길이에 대한 철근의 배근폭비이다. 실험체는 Eurocode 4에 의한 Semi-Rigid Full Strengh 접합부로 분류되었다. 실험결과로부터 제안된 시스템은 우수한 성능을 보이며 현장에서 적용될 수 있다. To reduce the story height for high-rise buildings, the TEC Beam is developed as a new composite beam composed of structural tee, precast concrete, stirrup, and site-in-cast reinforced concrete slab. The preliminary test of the proposed system was performed for simple beams and it showed a good behavior. However, for the field application of the system, it is required to develope a steel moment resisting connection using steel brackets on which upper rebars of the TEC BEAM are anchored. In this paper, three types of the proposed system are experimentally investigated. The parameters of the test are as follows: (1) the spacing of transverse bars, (2) the ratio of width of rebar's layer to bracket length. Specimens were classified as semi-rigid full strength by the Eurocode 4. It could be concluded that the proposed moment resisting system shows a good structural behavior and may be applicable in the filed.
김상수(Kim, Sang Su),김도현(Kim, Do Hyun),정광량(Jung, Kwang Ryang),주영규(Ju, Young Kyu),김상대(Kim, Sang Dae) 한국구조물진단유지관리학회 2011 한국구조물진단학회 학술발표회논문집 Vol.15 No.1
The purpose of this study was to analyze the most effective case in the column shortening according to variation of concrete strength. We set a analysis building model which story is 54 and height is 197.4m and is consisted of 25 column and 2 core walls. Based on the construction, we analyze the column shortening and set it a standard result. Increasing the column concrete strength from 10% to 50%, we arrange and compare the results of each absolute shortening, especially focusing on shortening subsequent to casting N floor.
박수용(Park Soo-Yong),최상현(Choi Sang-Hyun),윤성원(Yoon Sung-Won),정광량(Jung Kwang-Ryang) 대한건축학회 2004 大韓建築學會論文集 : 構造系 Vol.20 No.5
This paper presents a methodology to detect and locate damage in a slab structure. The methodology utilizes damage<br/> indices based on the changes in the distribution of the modal compliance of the slab structure due to damage. The<br/> changes in the modal compliance distribution are obtained using the mode shapes of the pre-damaged and post-damaged<br/> states of the structure. The moment-curvature relationships and the mean expression for the sum of bending moments<br/> are utilized to formulate the damage index. The basic elements of the approach are summarized, and the validity of the<br/> proposed method is demonstrated using a finite element model, a laboratory model, and a real slab.