Proceedings of the Korea Concrete Institute Conference (한국콘크리트학회:학술대회논문집)

Korea Concrete Institute (한국콘크리트학회)
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Flexural behavior of RC beams with unbonded prestressing CFRP laminates

비부착 탄소섬유판 긴장재를 갖는 철근 콘크리트 보의 휨거동

  • 박종섭 (한국건설기술연구원 구조연구부) ;
  • 박영환 (한국건설기술연구원 구조연구부) ;
  • 정우태 (한국건설기술연구원 구조연구부)
  • Published : 2006.05.11
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Abstract

This study investigates the flexural behavior and strengthening performance of RC beams with unbonded prestressing CFRP laminates through static bending tests. The aluminum anchorage system has been developed in tins study and successfully applied to the test specimens. The prestressing level of CFRP laminatehas was 0 %, 20 %, 30% and 50 % of its tensile strength. Experimental results revealed that RC beams with unbonded prestressing CFRP laminates showed increased crack load and yield load according to the level of prestress. It has also been observed that the length of the CFRP laminates does not have significant effect on the maximum load.

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