강섬유 혼입률에 따른 철근콘크리트 외부 보-기둥 접합부의 내진성능

초록

The purpose of this study is to evaluate the seismic performance of steel fiber reinforced concrete by setting the steel fiber volume fraction to 0, 1, 2%. Experimental results were evaluated according to the criteria presented in ACI 374. All specimens except the NJR-2 specimens did not meet the criteria. However, NJR-1 satisfied the criterion that the secant stiffness between -0.0035 and 0.0035 of the members should exceed 0.05 of the initial stiffness of the first cycle.