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횡 하중 작용시 곡선형 철근으로 보강된 RC 플랫 플레이트 외부 접합부의 구조성능에 관한 실험적 연구
최현기(Choi Hyun-Ki),김준서(Kim Jun-Seo),최윤철(Choi Youn-Cheul),최창식(Choi Chang-Sik) 대한건축학회 2007 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.27 No.1
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 results of an experiment program on punching shear performance of RC slab-column connection are presented in this paper. Specimens were full-scale representations of a one-story slab in a Korean apartment. The test results showed that failure mechanism of specimens governed by shear fracture and the strength of specimens were different according to the retrofitting strategies.
최현기(Choi Hyun-Ki),김준서(Kim Jun-Seo),최윤철(Choi Youn-Cheul),최창식(Choi Chang-Sik),백영수(Back Young Soo) 대한건축학회 2007 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.27 No.1
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. A flat plate-column connection is susceptible to brittle punching shear failure, which may result in the necessity of shear reinforcement. In previous, experimental tests were performed to study the capacity of slab-column connections strengthened with various shear reinforcement, and the capacity of the specimens with curve steel reinforcement, experimental studies was performed. The results of an experiment program on punching shear performance of RC slab-column connection are presented in this paper. Specimens were full-scale representations of a one-story slab in a Korean apartment. The test results showed that failure mechanism of specimens governed by shear fracture and the strength of specimens were different according to the retrofitting strategies.
최창식 ( Choi Chang-sik ),최윤철 ( Choi Youn-cheul ),김현민 ( Kim Hyun-min ),최현기 ( Choi Hyun Kee ),이리형 ( Lee Li-hyung ) 한국구조물진단유지관리공학회 2006 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.10 No.1
Because of the characteristics relating to high tensile ductility, High Performance Fiber Reinforced Cementitious Composites (HPFRCC) are studied to be adopted in repair and retrofit of buildings. A series of three shear wall specimens was tested under constant axial stress and reversed cyclic lateral loading in order to evaluate the seismic retrofit that had been proposed for the shear wall with the opening. The retrofit involved the use of newly developed ECC and MDF(Macro Defect Free), both of which are sprayed through the high pressure pump, over the entire face of the wall. The results indicate that two difference types of retrofitting strategy make the different effects of a rise in the strength and ductility of each specimen.
최창식(Choi Chang-Sik),최윤철(Choi Youn-Cheul),김현민(Kim Hyun-Min),최현기(Choi Hyun Kee),이리형(Lee Li-Hyung) 한국구조물진단유지관리학회 2006 한국구조물진단학회 학술발표회논문집 Vol.10 No.1
Because of the characteristics relating to high tensile ductility, High Performance Fiber Reinforced Cementitious Composites (HPFRCC) are studied to be adopted in repair and retrofit of buildings. A series of three shear wall specimens was tested under constant axial stress and reversed cyclic lateral loading in order to evaluate the seismic retrofit that had been proposed for the shear wall with the opening. The retrofit involved the use of newly developed ECC and MDF(Macro Defect Free), both of which are sprayed through the high pressure pump. over the entire face of the wall. The results indicate that two difference types of retrofitting strategy make the different effects of a rise in the strength and ductility of each specimen.