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탄소섬유 보강재로 표면매립에 의해 보강된 철근 콘크리트 보의 휨 보강성능

Title
탄소섬유 보강재로 표면매립에 의해 보강된 철근 콘크리트 보의 휨 보강성능
Other Titles
Flexural Capacity of Concrete Beam Strengthened with Near-Surface Mounted Carbon Fiber Reinforced Polymer
Author
심종성
Keywords
휨 성능; 역사다리꼴 탄소섬유보강재; 표면매립 보강공법; Flexural performance; Inverse-shaped CFRP; NSM strengthening method
Issue Date
2008-05
Publisher
한국구조물진단유지관리공학회
Citation
한국구조물진단유지관리공학회 논문집, v. 12, No. 3, Page. 84-92
Abstract
본 연구는 비부식성 및 고성능의 보강재로 많은 연구가 진행 중인 Fiber Reinforced Polymer(FRP)를 이용하여 표면매립 보강공법(Near Surface Mounted)을 통한 휨 구조거동을 분석, 보강형태에 따른 휨 성능을 규명하고자 한다. 이를 위해 본 연구에서는 역사다리꼴 탄소막대를 이용하여 NSM 보강 보 구조물의 휨성능을 분석하였으며 Type A(15×13×6mm)와 Type B(4×3×10mm)의 2가지 보강재 형태로 각각 보강비를 달리 하여 실험을 수행하였다. 실험결과, 무보강 실험체인 Control 실험체보다 20~100%의 보강성능 향상을 나타내었으며, 이를 바탕으로 휨모멘트 성능해석 및 균열, 연성지수 평가를 통해 본 NSM 보강공법의 보강효율을 분석하였다. This study is to investigate the flexural performance of Near Surface Mounted (NSM) strengthening method using Fiber reinforced Polymer (FRP) materials to concrete structures. For this study, the inverse-shaped trapezoid CFRP composite material which has been registered as New Excellent Technology (NET) 351 was adopted to the concrete structure. In this study, two types of the CFRP types were considered; Type A (15×13×6mm) and Type B (4×3×10mm) with different strengthening ratio. In the result of the test, it was proved that NSM strengthened specimens had more flexural performance of 20-100% than that of the unstrengthened specimen. With this test result, the structural efficiency was investigated based on the coefficient of ductility and coefficient of crack resistance.
URI
http://db.koreascholar.com/Article?code=264980https://repository.hanyang.ac.kr/handle/20.500.11754/104551
ISSN
2287-6979
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > CIVIL AND ENVIRONMENTAL ENGINEERING(건설환경공학과) > Articles
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