Experimental Study on the Hysteretic Behavior of R/C Low-Rise Shear Walls under Cyclic Loads

반복하중을 받는 철근콘크리트 저형 전단벽의 이력거동에 관한 실험적 연구(II) -바벨형 단면(Barbell Shape)의 내력과 연성을 중심으로-

Results of an experimental investigation of low-rise reinforced concrete shear walls with barbell cross section under cyclic loads are discussed and evaluated. Four halr scale models of test specimens with height to length ratio of 0.75 were experimented. The dimension of all walls is 1500mm wide $\times$ 950 mm high $\times$ 100 mm thick and the section of all boundary column at both ends is 200 mm $\times$ 200mm. Main variables are : design concept, vertical flexural reinflrcement ratios and reinforcement details(including crossed diagonal shear reinforcement in SW7 specimen). In SW7 specimen, maximum strength and consequently dissipating energy index were 1.45 and 1.28 times greater than those of SW6 specimen, respectively.