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Effects of the Replacement Length of Concrete with ECC on the Cyclic Behavior of Reinforced Concrete Columns
Jung-Hwan Hyun1, Jin-Wook Bang2, Bang-Yeon Lee3
1Civil Engineering Team, Ssangyong Engineering and Construction Co., Ltd., 299 Olympic-ro, Songpa-gu, Seoul 05510, Korea.
Abstract:
This paper presents an experimental investigation on the effects of the replacement length of concrete with engineered cementitious composites (ECC) on the cyclic behavior of a reinforced concrete (RC) column. A conventional RC column specimen and two RC composite columns designed with ECC were fabricated. To investigate the cyclic behavior of each specimen, a series of cyclic loading tests was performed under a reversed cyclic loading condition with a constant axial load. Test results showed that ECC columns exhibited higher cyclic behavior in terms of load carrying capacity, ductility, and energy dissipation capacity compared to the RC column. It was also found that when applying ECC to the column specimen with a length of 3.6d or more, the energy dissipation capacity was greatly increased.
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