논문 상세보기

FRP-UHPC 복합 보강기법으로 보강된 RC 슬라브의 휨 파괴를 위한 설계 조건 KCI 등재

Flexural Failure Design Criteria for Retrofitted RC Slabs using FRP-UHPC Hybrid System

  • 언어KOR
  • URLhttps://db.koreascholar.com/Article/Detail/312614
구독 기관 인증 시 무료 이용이 가능합니다. 4,000원
복합신소재구조학회 논문집 (Journal of the Korean Society for Advanced Composite Structures)
한국복합신소재구조학회 (Korean Society for Advanced Composite Structures)
초록

This study proposes flexural failure design criteria of continuous slabs enhanced by a hybrid system of fiber reinforced polymer (FRP) and ultra high performance concrete (UHPC). The proposed hybrid retrofit system is designed to be placed at the top surface of the slabs for flexural strengthening of the sections in both positive and negative moment zones. The enhancing mechanisms of the proposed system for both positive and negative moment regions are presented. The neutral axis of the enhanced sections in positive moment zone at flexural failure is enforced to be in UHPC overlay for preventing the compression in FRP. From this condition, a relationship between design parameters of FRP and UHPC is established. Although the capacity of the proposed retrofit system to enhance flexural strength and ductility is confirmed through experiments of one-way RC slabs having two continuous spans, the retrofitted slabs failed in shear. To prevent this shear failure, a design criteria of flexural failure is proposed.

저자
  • 김정중(세종대학교 공과대학 건설환경공학과 연구교수) | Kim, Jung Joong
  • 노혁천(세종대학교 공과대학 건설환경공학과 부교수) | Noh, Hyuk-Chun 교신저자
  • 마흐무드 레다 타하(뉴멕시코 주립대학교 공과대학 토목공학과 교수) | Reda Taha, Mahmoud M.