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Experimental and analytical investigations for behaviors of RC beams strengthened with tapered CFRPs

Title
Experimental and analytical investigations for behaviors of RC beams strengthened with tapered CFRPs
Authors
Kim N.Kim Y.H.Kim H.S.
Ewha Authors
김희선
SCOPUS Author ID
김희선scopus
Issue Date
2015
Journal Title
Structural Engineering and Mechanics
ISSN
1225-4568JCR Link
Citation
vol. 53, no. 6, pp. 1067 - 1081
Keywords
Analytical methodCompositesExperimental investigationFiber reinforcedFinite Element Method (FEM)
Publisher
Techno Press
Indexed
SCIE; SCOPUS; KCI WOS scopus
Abstract
This study investigates structural and mechanical behaviors of RC (Reinforced concrete) beams strengthened with tapered CFRP (Carbon fiber reinforced polymer) sheets having various configurations. Toward this goal, experiments are performed on RC beams strengthened with four layers of CFRP sheets and each layer of the CFRP is prepared to have different length. Experimental results show that tapered CFRPs have better strengthening effect than non-tapered CFRP sheets and maximum loads of the beams with tapered CFRPs are governed by the length of first CFRP layer rather than total length of CFRP layers. In addition, analyses are performed using FE (Finite Element) models including cohesive elements to predict debonding behaviors between FRP and concrete elements. The predicted results from the FE models show good agreement with the experimental results. Copyright © 2015 Techno-Press, Ltd.
DOI
10.12989/sem.2015.53.6.1067
Appears in Collections:
엘텍공과대학 > 건축공학전공 > Journal papers
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