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Eccentric compression behaviour of concrete columns reinforced with steel-FRP composite bars
Ge, W. Chen, K. Guan, Z. Lu, W. Cao, D.
Ge, W.
Chen, K.
Guan, Z.
Lu, W.
Cao, D.
Publication Date
2021-07
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© 2021 Elsevier. Reproduced in accordance with the publisher's self-archiving policy. This manuscript version is made available under the CC-BY-NC-ND 4.0 license.
Peer-Reviewed
Yes
Open Access status
openAccess
Accepted for publication
2021-03-11
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Abstract
Eccentric compression behaviour of reinforced concrete (RC) columns reinforced by steel-FRP composite bars
(SFCBs) was investigated through experimental work and theoretical analyses. The tension and compression test results
show that SFCBs demonstrate a stable post-yield stiffness. The mechanical properties of the composite reinforcement
have a significant influence on eccentric compression behaviour of the reinforced concrete columns, in terms of failure
mode, crack width, deformation and bearing capacity. Formulae were also developed to discriminate failure mode and to
determine moment magnification factor, bearing capacity and crack width of the columns studied, with the theoretical
predictions being in a good agreement with the experimental results. In addition, parametric studies were conducted to
evaluate the effects of mechanical properties of reinforcement, reinforcement ratio, eccentricity, slenderness ratio, types of
reinforcement and concrete on the eccentric compression behaviour of RC columns. The results show that the
compressive performance is significantly improved by using the high performance concrete, i.e. reactive powder concrete
(RPC) and engineered cementious composites (ECC).
Version
Accepted manuscript
Citation
Ge W, Chen K, Guan Z et al (2021) Eccentric compression behaviour of concrete columns reinforced with steel-FRP composite bars. Engineering Structures. 238: 112240.
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Article