This paper aims to quantify the retrofit effect of the Bolt Prefabricated Concrete-Filled Tube reinforcement method on non-seismic school reinforced concrete building through static cyclic loading experiments. To achieve the objective, two-story specimens including a non-retrofitted frame(NRF) and a Bolt Prefabricated Concrete-Filled Tube Reinforcement Frame(BCRF) were tested under static cyclic loading, and the lateral resistant capacities were compared in terms of maximum strength, initial stiffness, effective stiffness, and total energy dissipation. In addition, the load-displacement curves were compared to the story drift limit specified in Seismic Performance Evaluation and Retrofit Manual for School Facilities to investigate if the retrofitted frame was satisfied in target performance(life safety). Experimental results showed that BCRF successfully met the target performance, with a 200% increase in maximum strength and a 300% increase in energy dissipation capacity. Additionally, both initial stiffness and effective stiffness improved by more than 30% compared to NRF. Furthermore, BCRF exhibited an effect that delayed the occurrence of bond failure.

Abstract
1. 서론
2. BCFT 보강 시스템
3. 실험 계획
    3.1 BCFT보강 골조 실험체
    3.2 가력계획
4. 실험 결과 및 분석
    4.1 균열 및 파괴 양상
    4.2 하중-변위관계
    4.3 변위-변형률 관계
5. BCFT 시스템 보강 효과
    5.1 손상 메카니즘
    5.2 강도증가 및 에너지소산능력
    5.3 부착파괴 저감 효과
5. 결론
감사의 글
References

• 이지현(경상국립대학교 건축공학과, 석사과정) | Lee Jihyeon (Dept. of Architecture, Gyeongsang National University)
• 김수빈(경상국립대학교 건축공학과, 박사과정) | Kim Subin (Dept. of Architecture, Gyeongsang National University)
• 김민진(㈜엠에스엔지니어링, 차장) | Kim Minjin (Associate Director, MS Engineering)
• 신지욱(경상국립대학교 건축공학과, 부교수, 공학박사) | Shin Jiuk (Dept. of Architectural Engineering, Gyeongsang National University) Corresponding author