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Title |
Cyclic Behavior of Slender Reinforced Concrete Coupling Beams with Bundled Diagonal Reinforcement
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Authors |
한상환(Sang-Whan Han) ; 유경환(Kyoung-Hwan Yoo) ; 이기학(Ki-Hak Lee) ; 신명수(Myoung-Su Shin) |
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DOI |
http://dx.doi.org/10.4334/JKCI.2015.27.6.661 |
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Keywords |
연결보 ; 병렬전단벽 시스템 ; 묶음대각철근 ; 프리캐스트 coupled shear wall ; bundled ; slender coupling beams ; cyclic performance ; precast |
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Abstract |
Coupled shear walls are effective lateral force resisting system in which coupling beams link individual walls. For improving the energy dissipation capacity of coupling beams, diagonal reinforcement details were developed. However, it is difficult to construct diagonal reinforced coupling beams due to the congestion of reinforcement in the beam. For resolving the problem, this study developed precast coupling beams with bundled diagonal reinforcement. To reduce the reinforcement congestion, bundled diagonal reinforcement were placed in the coupling beam. To evaluate the cyclic performance of coupling beams with bundled diagonal reinforcement, experimental test were conducted. For this purpose, two slender specimens with an aspect ratio of 3.5 were made and tested. It was observed that the cyclic performance of the coupling beam with bundled diagonal reinforcement was similar with that of the coupling beam with normal diagonal reinforcement placed according to design code to ACI 318-11.
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