Abstract
본 연구에서는 기존 철근콘크리트건물 보-기둥 접합부의 내진 성능을 개선하기 위하여 탄소섬유를 사용하여 구조물을 보강한 후 실험을 수행하였다. 이를 위하여 6개의 철근콘크리트 보-기둥 접합부를 제작하였으며, 지진하중과 같은 반복하중이 작용할 때 보강재료 및 보강영역 등을 변수로 하여 실험을 수행하여 각 보강변수에 따른 보강효과를 평가하였다. 본 실험을 통하여 구조물의 내진 성능 및 연성능력을 증진시킬 목적으로 새로운 보강재료(탄소섬유판, 탄소섬유봉, 탄소섬유쉬트)로 설계된 보강 실험체(RPC-CP2, RPC-CR, RJC-CP, RJC-CR)들은 내력증진은 물론이고 안정적인 이력거동을 확보할 수 있었다. In this study, experimental research was carried out to improve earthquake-resistant performance for the retrofitting of reinforced concrete beam-column joints using carbon fiber materials in existing reinforced concrete building. Six reinforced concrete beam-column joints were constructed and tested to evaluate the retrofitting effect of test variables, such as the retrofitting materials and retrofitting region(plastic hinge, beam-column joint) under load reversals. Test results show that retrofitting specimen(RPC-CP2, RPC-CR, RJC-CP, RJC-CR), using new materials(carbon fiber plate, carbon fiber rod and carbon fiber sheet), designed by the improvement of earthquake-resistant performance and ductility, attained more load-carrying capacity and stable hysteretic behavior.
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