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에코인공경량콘크리트를 사용한 플랫플레이트 슬래브-기둥 접합부의 뚫림전단 성능 및 보강효과
양원직(Yang Won-Jik),이원호(Yi Waon-Ho),지석원(Jee Suk-Won),이학수(Lee Hak-Su) 대한건축학회 2009 大韓建築學會論文集 : 構造系 Vol.25 No.8
Reach on the high-strength lightweight concrete and the flat plate slab system have been doing for reducing dead load of structure and the maximum of doing the use area. But the lightweight concrete has a weak on the shear behavior, and flat plate slab is need to punching shear reinforcement at the critical section of around of columns. Typical shear reinforcement methods are stirrup and stud rail method. Two methods respectively have a disadvantage of economic efficiency and construction efficiency. Consequently, the objective of this study is to investigate in punching shear performance of flat plate slab using the lightweight concrete. Also shear reinforcement method is proposed for maximizing economic efficiency and construction efficiency, and that is compared with the conventional reinforcement method.
공동주택 발코니 확장에 따른 창호의 결로방지 및 단열성능 향상을 위한 연구
윤대원(Yoon Dae-Won),유선용(Yoo Seonyong),이충근(Lee Chungkeun),지석원(Jee Suk-Won),송두삼(Song Doosam),김태연(Kim Taeyeon),이승복(Leigh Seung-bok) 한국건축친환경설비학회 2007 한국건축친환경설비학회 학술발표대회 논문집 Vol.- No.-
According to the legalization of balcony expansions in apartment houses since January 2006, most of the apartment houses now are built with expanded balcony space. The existing 'balcony' space was physically a buffer between the outside environment and the inside environment. In addition, it was a space that functioned to minimize the indoor environmental changes in relation to external weather changes. However, as apartment houses with extended balconies have become more common recently, the possibility of condensation increased due to the weakening of the insulation capacity as the space that can carry out these environmental buffer roles have disappeared. Also, the indoor thermal environment has been weakened. Thus, this paper seeks to resolve problems related to the expansion of balconies by presenting a new method that improves the insulation and condensation capacity in the window that an apartment housing with an extended balcony should have and to prove prevention of condensation by computer program.