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Static and Fatigue Behavior Characteristics of Reinforced Concrete Beams Strengthened with CFRP Plate  

Kim, Kwang-Soo (성균관대학교 과학기술연구소)
Kim, Jin-Yul ((주)AMI 기술연구소)
Kim, Sung-Hu (성균관대학교 건설환경시스템공학과)
Park, Sun-Kyu (성균관대학교 건설환경시스템공학과)
Publication Information
Journal of the Korea institute for structural maintenance and inspection / v.12, no.4, 2008 , pp. 141-148 More about this Journal
Abstract
In the recent construction industry, Carbon Fiber Reinforced Polymers(CFRPs) have been highly considered as innovative strengthening materials for civil structures due to their superior material properties. This paper is to offer design data and strengthening efficiency of reinforced concrete beams strengthened with CFRP Plate. Static tests were carried out to evaluate failure modes and strengthening capacity. Displacements and strains of steel and CFRP plates were obtained and analyzed through a series of fatigue tests. Also, Those evaluated the energy dissipation. Results of the tests showed increase in strengthening ratios caused debonding failure at the end of beams. For the beams wrapped with CFRP sheets around the end of the plates, debonding failure mode that was induced from flexural cracks was indicated. Through the fatigue tests, it was observed that displacements, strains of steel and CFRP plates converged into certain values. It is also proved that the beams strengthened with CFRP plates are able to resist fatigue loading under serviceability.
Keywords
CFRP; Fatigue; Strengthening;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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