한국공간구조학회지 제20권 제4호 (p.131-139)

하이브리드 조립형 보강 기법을 적용한 철근콘크리트 보의 휨 성능 평가에 관한 실험적 연구

An Experimental Study on Flexural Performance of RC Beams Reinforced With Hybrid Prefabricated Retrofit Method
키워드 :
Hybrid prefabricated retrofit method,Flexural test,Flexural performance,Ductility evaluation

목차

Abstract
1. 서론
2. 실험 계획
   2.1 실험 개요
   2.2 실험 방법
3. 실험 결과
   3.1 파괴 및 균열 양상
   3.2 하중-변형률 관계
   3.3 하중-처짐 관계
4. 휨 성능 분석
   4.1 휨 강도 평가
   4.2 연성 평가
   4.3 에너지소산능력
5. 결론
References

초록

In this paper, the hybrid prefabricated retrofit method is suggested and examined. Six specimens were manufactured in order to evaluate their flexural performance of RC beams. Test parameters include the added beam depth, the thickness of bottom plate, the number of the steel plate with openings. The effects of these parameters on the flexural performance of reinforced concrete beams were examined. The load-deflection behavior and modes of cracks are presented from the test results. At the test result, the flexural capacity and the ductility of the hybrid prefabricated retrofit method was increased satbly. Also, comparing the flexural performance of RC beam and retrofitted RC beams, it was increased that the flexural strength is about 3.3 times, the ductility is about 2.55 times, and energy dissipation capacity is about 7.34 times.