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Axial-flexural interactions of GFRP-CFFT columns with and without reinforcing GFRP bars

Journal Article


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Abstract


  • This study presents the results of an experimental program and analytical modeling for axial-flexural interactions of concrete-filled glass fiber–reinforced polymer tube (GFRP-CFFT) columns with and without reinforcing glass fiber–reinforced polymer (GFRP) bars. The experimental program included four steel RC specimens, four GFRP-CFFT specimens, and four GFRP bar–reinforced GFRP-CFFT specimens with an outer diameter of 205–206 mm and a height of 800–812 mm. The specimens were tested under concentric and 25- and 50-mm eccentric axial loads and four-point load. The experimental results showed that GFRP bar–reinforced GFRP-CFFT specimens sustained higher peak axial loads, axial and lateral deformations at peak axial load, and flexural loads than GFRP-CFFT specimens without reinforcing GFRP bars and steel RC specimens. Axial load and bending moment (P-M) interactions of GFRP-CFFT specimens with and without reinforcing GFRP bars and steel RC specimens were analytically modeled. A parametric study was conducted to evaluate the effects of actual confinement ratio and GFRP bar reinforcement ratio on P-M interactions of GFRP-CFFT specimens. The P-M interactions were found to be significantly affected by both actual confinement ratio and GFRP bar reinforcement ratio.

Publication Date


  • 2017

Citation


  • Khan, Q. S., Sheikh, M. Neaz. & Hadi, M. N. S. (2017). Axial-flexural interactions of GFRP-CFFT columns with and without reinforcing GFRP bars. Journal of Composites for Construction, 21 (3), 04016109-1-04016109-12.

Scopus Eid


  • 2-s2.0-85017574356

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=1011&context=eispapers1

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers1/12

Has Global Citation Frequency


Start Page


  • 04016109-1

End Page


  • 04016109-12

Volume


  • 21

Issue


  • 3

Place Of Publication


  • United States

Abstract


  • This study presents the results of an experimental program and analytical modeling for axial-flexural interactions of concrete-filled glass fiber–reinforced polymer tube (GFRP-CFFT) columns with and without reinforcing glass fiber–reinforced polymer (GFRP) bars. The experimental program included four steel RC specimens, four GFRP-CFFT specimens, and four GFRP bar–reinforced GFRP-CFFT specimens with an outer diameter of 205–206 mm and a height of 800–812 mm. The specimens were tested under concentric and 25- and 50-mm eccentric axial loads and four-point load. The experimental results showed that GFRP bar–reinforced GFRP-CFFT specimens sustained higher peak axial loads, axial and lateral deformations at peak axial load, and flexural loads than GFRP-CFFT specimens without reinforcing GFRP bars and steel RC specimens. Axial load and bending moment (P-M) interactions of GFRP-CFFT specimens with and without reinforcing GFRP bars and steel RC specimens were analytically modeled. A parametric study was conducted to evaluate the effects of actual confinement ratio and GFRP bar reinforcement ratio on P-M interactions of GFRP-CFFT specimens. The P-M interactions were found to be significantly affected by both actual confinement ratio and GFRP bar reinforcement ratio.

Publication Date


  • 2017

Citation


  • Khan, Q. S., Sheikh, M. Neaz. & Hadi, M. N. S. (2017). Axial-flexural interactions of GFRP-CFFT columns with and without reinforcing GFRP bars. Journal of Composites for Construction, 21 (3), 04016109-1-04016109-12.

Scopus Eid


  • 2-s2.0-85017574356

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=1011&context=eispapers1

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers1/12

Has Global Citation Frequency


Start Page


  • 04016109-1

End Page


  • 04016109-12

Volume


  • 21

Issue


  • 3

Place Of Publication


  • United States