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- 저자 : 김국제 ( Kim Gook-je ) (검색결과 3 건)
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횡 하중을 받는 PT 플랫 플레이트 내부 접합부의 구조성능에 관한 실험적 연구
김국제(Kim Gook-Je),김현우(Kim Hyun-Woo),조영상(Cho Young-Sang) 대한건축학회 2008 大韓建築學會論文集 : 構造系 Vol.24 No.5
Post-tensioned(PT) flat plate slab has been widely used in high rise buildings for its remarkable advantages. However, punching shear failure has become increasingly important issue with the spread of flat plate slab. The objective of this paper is to estimate structural performance of interior slab-column connections with prestressed slabs based on shear reinforcement. The results of an experiment program on structural performance of PT slab-column connections are presented in this paper. The first one of five specimens was severed as the control specimen. Two of them were strengthened by studs welded on the rails according to ACI 421.1R-99. The others were reinforced by studs with steel plates. Specimens were tested under constant gravity load and the lateral displacement was applied on the top surface of column in a reversed cyclic manner. Punching shear failure occurred for the control specimen at drift ratio of approximately 2.2%. The specimens with studs on the steel plates showed a significant flexural yielding and sustained deformation up to a drift ratio of 4.5% to 5.35%. Furthermore, the results exhibited a maximum increase of 40.74% on ductility of the joints comparison to the control sample. The PT flat plate slab reinforced studs with steel plates is superior to the PT flat plate slab reinforced studs in terms of ductility, controlling crack, postponing stiffness deterioration, energy dissipation, etc.
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조영상 ( Cho Young-sang ),김국제 ( Kim Gook-je ) 한국구조물진단유지관리공학회 2005 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.9 No.2
As the social current becomes more diversified and more variable, many necessities are proposed on the financial investment to the existing school facilities and on the improvement of the educational environments. In each step of new construction, extension, maintenance, and mending of the school facilities, most steel-reinforced concrete buildings take too many things to work and are inevitable to proceed the work during the semester, compared to other structural types of the buildings such as steel structures and precast structures, leading to the environmental and safety-related problems. In this paper, the reseawas rch made on the Staggered Truss system, one of the steel structure systems, applying the system to the public school buildings. The Staggered Truss system is suitable to the flexible space of the school building for ‘the 7th Education process’ and excellent to the seismic capabilities.
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조영상(Cho Young-Sang),김국제(Kim gook-je) 한국구조물진단유지관리학회 2005 한국구조물진단학회 학술발표회논문집 Vol.9 No.2
As the social current becomes more diversified and more variable, many necessities are proposed on the financial investment to the existing school facilities and on the improvement of the educational environments. In each step of new construction, extension, maintenance, and mending of the school facilities, most steel-reinforced concrete buildings take too many things to work and are inevitable to proceed the work during the semester, compared to other structural types of the buildings such as steel structures and precast structures, leading to the environmental and safety-related problems. In this paper, the reseawas rch made on the Staggered Truss system, one of the steel structure systems, applying the system to the public school buildings. The Staggered Truss system is suitable to the flexible space of the school building for "the 7th Education process" and excellent to the seismic capabilities.
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