Behaviour of CFRP-strengthened slender square RC columns

Zhong Tao; Qing Yu

doi:10.1680/macr.2008.60.7.523

Behaviour of CFRP-strengthened slender square RC columns

Zhong Tao, Qing Yu

Research output: Contribution to journal › Article

19 Citations (Scopus)

Abstract

The objective of this paper is to investigate the performance of slender square reinforced concrete (RC) columns strengthened with carbon fibre reinforced polymer (CFRP) jackets subjected to eccentric loading. Tests were conducted on eight RC columns strengthened with CFRP jackets, and another eight unstrengthened ones served as reference specimens. The main variables explored in this test programme include: (a) load eccentricity (O150 mm); (b) with or without CFRP strengthening; and (c) CFRP configuration (unidirectional and bidirectional). Compared to those unstrengthened RC specimens, the test results showed that no obvious strength increase was observed for specimens confined by unidirectional CFRP jackets, while an increase of 22-8-61-8% was obtained for those strengthened by bidirectional CFRP jackets. The longitudinal fibres were effective in enhancing loadcarrying capacity of slender RC columns subjected to eccentric loading.

Original language	English
Number of pages	11
Journal	Magazine of Concrete Research
DOIs	https://doi.org/10.1680/macr.2008.60.7.523
Publication status	Published - 2008

Keywords

carbon fibers
columns
eccentric loadings
reinforced concrete

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10.1680/macr.2008.60.7.523

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title = "Behaviour of CFRP-strengthened slender square RC columns",

abstract = "The objective of this paper is to investigate the performance of slender square reinforced concrete (RC) columns strengthened with carbon fibre reinforced polymer (CFRP) jackets subjected to eccentric loading. Tests were conducted on eight RC columns strengthened with CFRP jackets, and another eight unstrengthened ones served as reference specimens. The main variables explored in this test programme include: (a) load eccentricity (O150 mm); (b) with or without CFRP strengthening; and (c) CFRP configuration (unidirectional and bidirectional). Compared to those unstrengthened RC specimens, the test results showed that no obvious strength increase was observed for specimens confined by unidirectional CFRP jackets, while an increase of 22-8-61-8% was obtained for those strengthened by bidirectional CFRP jackets. The longitudinal fibres were effective in enhancing loadcarrying capacity of slender RC columns subjected to eccentric loading.",

keywords = "carbon fibers, columns, eccentric loadings, reinforced concrete",

author = "Zhong Tao and Qing Yu",

year = "2008",

doi = "10.1680/macr.2008.60.7.523",

language = "English",

journal = "Magazine of Concrete Research",

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TY - JOUR

T1 - Behaviour of CFRP-strengthened slender square RC columns

AU - Tao, Zhong

AU - Yu, Qing

PY - 2008

Y1 - 2008

N2 - The objective of this paper is to investigate the performance of slender square reinforced concrete (RC) columns strengthened with carbon fibre reinforced polymer (CFRP) jackets subjected to eccentric loading. Tests were conducted on eight RC columns strengthened with CFRP jackets, and another eight unstrengthened ones served as reference specimens. The main variables explored in this test programme include: (a) load eccentricity (O150 mm); (b) with or without CFRP strengthening; and (c) CFRP configuration (unidirectional and bidirectional). Compared to those unstrengthened RC specimens, the test results showed that no obvious strength increase was observed for specimens confined by unidirectional CFRP jackets, while an increase of 22-8-61-8% was obtained for those strengthened by bidirectional CFRP jackets. The longitudinal fibres were effective in enhancing loadcarrying capacity of slender RC columns subjected to eccentric loading.

AB - The objective of this paper is to investigate the performance of slender square reinforced concrete (RC) columns strengthened with carbon fibre reinforced polymer (CFRP) jackets subjected to eccentric loading. Tests were conducted on eight RC columns strengthened with CFRP jackets, and another eight unstrengthened ones served as reference specimens. The main variables explored in this test programme include: (a) load eccentricity (O150 mm); (b) with or without CFRP strengthening; and (c) CFRP configuration (unidirectional and bidirectional). Compared to those unstrengthened RC specimens, the test results showed that no obvious strength increase was observed for specimens confined by unidirectional CFRP jackets, while an increase of 22-8-61-8% was obtained for those strengthened by bidirectional CFRP jackets. The longitudinal fibres were effective in enhancing loadcarrying capacity of slender RC columns subjected to eccentric loading.

KW - carbon fibers

KW - columns

KW - eccentric loadings

KW - reinforced concrete

UR - http://handle.uws.edu.au:8081/1959.7/511953

U2 - 10.1680/macr.2008.60.7.523

DO - 10.1680/macr.2008.60.7.523

M3 - Article

SN - 0024-9831

JO - Magazine of Concrete Research

JF - Magazine of Concrete Research

ER -

Behaviour of CFRP-strengthened slender square RC columns

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Keywords

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