Existing reinforced concrete frame buildings designed for only gravity loads have been seismically vulnerable due to their inadequate column detailing. The seismic vulnerabilities can be mitigated by the application of a column retrofit technique, which combines high-strength near surface mounted bars with a fiber reinforced polymer wrapping system. This study presents the full-scale shaker testing of a non-ductile frame structure retrofitted using the combined retrofit system. The full-scale dynamic testing was performed to measure realistic dynamic responses and to investigate the effectiveness of the retrofit system through the comparison of the measured responses between as-built and retrofitted test frames. Experimental results demonstrated that the retrofit system reduced the dynamic responses without any significant damage on the columns because it improved flexural, shear and lap-splice resisting capacities. In addition, the retrofit system contributed to changing a damage mechanism from a soft-story mechanism (column-sidesway mechanism) to a mixed-damage mechanism, which was commonly found in reinforced concrete buildings with strong-column weak-beam system.

ABSTRACT
 1. 서 론
 2. NSM보강근과 FRP 시트 복합 보강 시스템
 3. 실물 진동기 실험 계획
  3.1 실물 실험 개요
  3.2 보강 실험체
  3.3 하중 및 계측 계획
 4. 실물 진동기 실험 결과
  4.1 손상 관측
  4.2 동적 응답
  4.3 부착 파괴
 5. 보강 효과
  5.1 응답 감소 효과
  5.2 손상 메커니즘 변화
  5.3 약층 현상 완화 효과
 6. 결 론
 REFERENCES

• 신지욱(한국건설기술연구원 국민생활연구본부) | Shin Jiuk (Department of Building and Urban Research, Korea Institute of Civil Engineering and Building Technology)
• 전종수(안동대학교 토목공학과) | Jeon Jong-Su (Department of Civil Engineering, Andong National University) Corresponding author
• Wright Timothy R.(Axis Group)