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An experimental study on axial behavior of CFRP-strengthened RC rectangular columns with variable slenderness ratio

An experimental study on axial behavior of CFRP-strengthened RC rectangular columns with variable... In the construction industry, carbon fiber-reinforced polymer (CFRP) composites are widely used for retrofitting and rehabilitation of reinforced concrete (RC) rectangular columns to enrich the service life of structures. The CFRP-confined RC rectangular column with a variable slenderness ratio has limited design provisions in available design codes. The aim of the current experimental work is to explore the efficacy of slenderness ratio on the axial performance of CFRP composite-confined rectangular columns having a constant cross-sectional area and steel reinforcement ratio. The experimental results clearly demonstrated that the yield strength, ultimate strength, and ductility of the RC column after CFRP confinement are significantly influenced by the variation in the slenderness ratio. The response of CFRP wrap, transverse and longitudinal reinforcements in the strengthening process of the RC rectangular column also remarkably varied for different slenderness ratios. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png "Asian Journal of Civil Engineering" Springer Journals

An experimental study on axial behavior of CFRP-strengthened RC rectangular columns with variable slenderness ratio

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Publisher
Springer Journals
Copyright
Copyright © Springer Nature Switzerland AG 2020
ISSN
1563-0854
eISSN
2522-011X
DOI
10.1007/s42107-020-00312-5
Publisher site
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Abstract

In the construction industry, carbon fiber-reinforced polymer (CFRP) composites are widely used for retrofitting and rehabilitation of reinforced concrete (RC) rectangular columns to enrich the service life of structures. The CFRP-confined RC rectangular column with a variable slenderness ratio has limited design provisions in available design codes. The aim of the current experimental work is to explore the efficacy of slenderness ratio on the axial performance of CFRP composite-confined rectangular columns having a constant cross-sectional area and steel reinforcement ratio. The experimental results clearly demonstrated that the yield strength, ultimate strength, and ductility of the RC column after CFRP confinement are significantly influenced by the variation in the slenderness ratio. The response of CFRP wrap, transverse and longitudinal reinforcements in the strengthening process of the RC rectangular column also remarkably varied for different slenderness ratios.

Journal

"Asian Journal of Civil Engineering" – Springer Journals

Published: Oct 20, 2020

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