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탄소섬유 강화플라스틱을 활용한 콘크리트파이프 접합부 성능평가에 관한 연구
이수규 ( Lee Sugyu ),홍기남 ( Hong Ki Nam ),아보말리알리 ( Abolmaali Ali ) 한국구조물진단유지관리공학회 2017 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.21 No.2
The purpose of this research is to develop a joint system for two concrete pipes with reduced wall thickness by a carbon fiber reinforced polymer (CFRP) fabric. As compared to conventional concrete pipe, the concrete pipe with the reduced wall thickness has more flexibility. However, the reduced wall thickness makes the conventional joint system not feasible. As an alternative joint, externally wrapping system with the CFRP fabric was proposed. The two CFRP widths (75mm and 150mm) were accounted for as a variable under joint shear test from ASTM C497M specification. The externally wrapping system showed 81.07% higher shear strength, as compared to the required shear strength by ASTM C497M.