강섬유와 묶음철근 보강을 통한 고성능 연결보의 이력거동 평가

초록

In this paper, a bundled diagonal reinforcement using high performance steel fiber was proposed to enhance theconstruct ability and seismic performance. Experiments of coupling beam was composed of four specimens and the hystereticbehavior evaluated for reverse cyclic loading to specimens using high performance steel fiber. The main variables of the experimentis a amount of stirrup and bundled reinforcement, depending on whether the mix of steel fiber. Specimen which criteria was applied100% of stirrup and bundled diagonal reinforcement of ACI318 criteria. With this, by appling same diagonal reinforcement, twospecimens were created by adjusting stirrup of 75%, 50%. So, a total of four specimens were produced. When coupling beam wasplaced concrete, this experiment was mixed in a content of steel fiber 1%. All the specimens were produced by aspect ratio3.5(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 thestrength, stiffness and energy dissipation capacity, respectively compared to the stirrup of 100%.

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