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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2019.1
- 수록면
- 43 - 54 (12page)
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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.
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참고문헌 (7)
참고문헌 신청
De Lorenzis L / 2007 / Near-surface mounted FRP reinforcement : An emerging technique for strengthening structures / Composites Part B : Engineering 38(2):119~143
2008 / ACI 440.2R-08. Guide for the design and construction of externally bonded FRP systems for strengthening concrete structures / American Concrete Institute
ICRI / 2014 / Guideline for the preparation of concrete surfaces for repair using hydrodemolition methods
FEMA / 2006 / Techniques for the seismic rehabilitation of existing buildings
FEMA / 2000 / Pre-standard and commentary for the seismic rehabilitation of buildings, prepared by ASCE
2008 / ACI 440.2R-08. Guide for the design and construction of externally bonded FRP systems for strengthening concrete structures / American Concrete Institute
ICRI / 2014 / Guideline for the preparation of concrete surfaces for repair using hydrodemolition methods
FEMA / 2006 / Techniques for the seismic rehabilitation of existing buildings
FEMA / 2000 / Pre-standard and commentary for the seismic rehabilitation of buildings, prepared by ASCE
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