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Title |
Hysteretic Behavior Evaluation of a RC Coupling Beam using a Steel Fiber and Diagonal Reinforcement
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Authors |
오해철(Hae Cheol Oh) ; 이기학(Kihak Lee) ; 한상환(Sang Whan Han) ; 신명수(Myoungsu Shin) ; 조영욱(Yeong Wook Jo) |
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DOI |
http://dx.doi.org/10.4334/JKCI.2015.27.3.291 |
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Keywords |
연결보 ; 강섬유 ; 대각철근 ; 에너지소산능력 coupling beam ; steel fiber ; diagonal reinforcement ; energy dissipation capacity |
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Abstract |
In this paper, a bundled diagonal reinforcement using high performance steel fiber was proposed to enhance the construct ability and seismic performance. Experiments of coupling beam was composed of four specimens and the hysteretic behavior evaluated for reverse cyclic loading to specimens using high performance steel fiber. The main variables of the experiment is a amount of stirrup and bundled reinforcement, depending on whether the mix of steel fiber. Specimen which criteria was applied 100% of stirrup and bundled diagonal reinforcement of ACI318 criteria. With this, by appling same diagonal reinforcement, two specimens were created by adjusting stirrup of 75%, 50%. So, a total of four specimens were produced. When coupling beam was placed concrete, this experiment was mixed in a content of steel fiber 1%. All the specimens were produced by aspect ratio 3.5(l/h=1050/300) to a half-scale. In this result, two specimens as reduced to stirrup of 75%, 50% was no significant difference in the strength, stiffness and energy dissipation capacity, respectively compared to the stirrup of 100%.
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