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Axial load-axial deformation behaviour of circular concrete columns reinforced with GFRP bars and helices

Journal Article


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Abstract


  • Fibre Reinforced Polymer (FRP) bars has attracted a significant amount of research attention in the last

    three decades to overcome the problems associated with the corrosion of steel reinforcing bars in reinforced

    concrete members. A limited number of studies, however, have investigated the behaviour of concrete

    columns reinforced with FRP bars. Also, available design standards either ignore the contribution of

    or do not recommend the use of GFRP bars in compression members. This study reports the results of

    experimental investigations of concrete specimens reinforced with GFRP bars and GFRP helices as longitudinal

    and transverse reinforcement, respectively. A total of five circular concrete columns of 205 mm in

    diameter and 800 mm in height were cast and tested under axial compression. The experimental results

    showed that reducing the spacing of the GFRP helices or confining the specimens with CFRP sheet led to

    improvements in the strength and ductility of the specimens. Also, an analytical model has been

    developed for the axial load-axial deformation behaviour of the circular concrete columns reinforced

    with GFRP bars and helices. The model has been validated with the experimental results.

Publication Date


  • 2016

Citation


  • Karim, H., Sheikh, M. Neaz. & Hadi, M. N. S. (2016). Axial load-axial deformation behaviour of circular concrete columns reinforced with GFRP bars and helices. Construction and Building Materials, 112 1147-1157.

Scopus Eid


  • 2-s2.0-84962600535

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=6713&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/5685

Has Global Citation Frequency


Number Of Pages


  • 10

Start Page


  • 1147

End Page


  • 1157

Volume


  • 112

Place Of Publication


  • Netherlands

Abstract


  • Fibre Reinforced Polymer (FRP) bars has attracted a significant amount of research attention in the last

    three decades to overcome the problems associated with the corrosion of steel reinforcing bars in reinforced

    concrete members. A limited number of studies, however, have investigated the behaviour of concrete

    columns reinforced with FRP bars. Also, available design standards either ignore the contribution of

    or do not recommend the use of GFRP bars in compression members. This study reports the results of

    experimental investigations of concrete specimens reinforced with GFRP bars and GFRP helices as longitudinal

    and transverse reinforcement, respectively. A total of five circular concrete columns of 205 mm in

    diameter and 800 mm in height were cast and tested under axial compression. The experimental results

    showed that reducing the spacing of the GFRP helices or confining the specimens with CFRP sheet led to

    improvements in the strength and ductility of the specimens. Also, an analytical model has been

    developed for the axial load-axial deformation behaviour of the circular concrete columns reinforced

    with GFRP bars and helices. The model has been validated with the experimental results.

Publication Date


  • 2016

Citation


  • Karim, H., Sheikh, M. Neaz. & Hadi, M. N. S. (2016). Axial load-axial deformation behaviour of circular concrete columns reinforced with GFRP bars and helices. Construction and Building Materials, 112 1147-1157.

Scopus Eid


  • 2-s2.0-84962600535

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=6713&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/5685

Has Global Citation Frequency


Number Of Pages


  • 10

Start Page


  • 1147

End Page


  • 1157

Volume


  • 112

Place Of Publication


  • Netherlands