한국구조물진단유지관리공학회 논문집 (Journal of the Korea institute for structural maintenance and inspection)
- 제6권1호
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- Pages.95-102
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- 2002
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- 2234-6937(pISSN)
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- 2287-6979(eISSN)
탄소섬유시트로 보강된 철근콘크리트 보의 시공불량시 휨 거동에 관한 연구
A Study on Flexural Behavior of Externally Reinforced R.C. Beam with Carbon Fiber Sheet : In Case of Constructional Deficiencies
- 투고 : 2001.03.30
- 발행 : 2002.01.31
초록
The flexural behavior of the reinforced concrete (RC) structure upgraded by external reinforcements was examined in this study. It is well known that the incorporation of carbon fiber sheet (CFS) with concrete is one of the most effective ways to strengthen the RC structure. Complete bonding is required between CFS and concrete in order to make the RC structure provide its full function until the time the Re structures serve. Many studies have reported that construction deficiencies have caused the debonding of the CFS from concrete before the RC structure with CFS reaches its ultimate capacity. This research took a systematic look at the failure mechanism, macroscopic load-deformation characteristics, the maximum load applied, and maximum bending moment when construction deficiencies exist. The results of the experiment conducted were compared with theoretically derived values. In the future, the results of this investigation will help minimize the factors of construction deficiencies, which may occur when CFS is used to reinforce a RC structure. The experiment was manipulated with steel reinforcement ratio and piles of CFS on a total of 14 beams (
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