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Moment-Curvature Behavior of Glass Fiber-Reinforced Polymer Bar-Reinforced Normal-Strength Concrete and High-Strength Concrete Columns

Journal Article


Abstract


  • A numerical integration approach was developed to investigate

    the moment-curvature behavior of glass fiber-reinforced polymer

    (GFRP) bar-reinforced circular normal-strength concrete (NSC)

    and high-strength concrete (HSC) columns. The results obtained

    from the developed integration approach were validated with

    the experimental results of eight GFRP bar-reinforced circular

    concrete column specimens. Out of these eight specimens, four

    specimens were cast with NSC having a compressive strength of

    37 MPa and four specimens were cast with HSC having a compressive

    strength of 85 MPa. A parametric study was carried out

    to investigate the effect of concrete compressive strength and

    GFRP longitudinal and transverse reinforcement ratios on the

    moment-curvature behavior of the GFRP bar-reinforced NSC and

    HSC circular columns under combined axial and flexural loads.

    The results of the parametric study indicate that increasing the

    concrete compressive strength or GFRP longitudinal reinforcement

    ratio leads to an increase in the bending moment capacity

    and a decrease in the ductility of GFRP bar-reinforced concrete

    columns. The confinement provided by the GFRP helixes (transverse

    reinforcement) improves both the bending moment capacity

    and the ductility of the GFRP bar-reinforced circular concrete

    columns. The improvement in the performance (bending moment

    and ductility) due to increasing the GFRP transverse reinforcement

    ratio was greater in the GFRP bar-reinforced NSC columns than in

    the GFRP bar-reinforced HSC columns.

Publication Date


  • 2019

Citation


  • Hasan, H., Karim, H., Sheikh, M. Neaz. & Hadi, M. N. S. (2019). Moment-Curvature Behavior of Glass Fiber-Reinforced Polymer Bar-Reinforced Normal-Strength Concrete and High-Strength Concrete Columns. ACI Structural Journal, 116 (4), 65-75.

Scopus Eid


  • 2-s2.0-85069153957

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers1/2931

Number Of Pages


  • 10

Start Page


  • 65

End Page


  • 75

Volume


  • 116

Issue


  • 4

Place Of Publication


  • United States

Abstract


  • A numerical integration approach was developed to investigate

    the moment-curvature behavior of glass fiber-reinforced polymer

    (GFRP) bar-reinforced circular normal-strength concrete (NSC)

    and high-strength concrete (HSC) columns. The results obtained

    from the developed integration approach were validated with

    the experimental results of eight GFRP bar-reinforced circular

    concrete column specimens. Out of these eight specimens, four

    specimens were cast with NSC having a compressive strength of

    37 MPa and four specimens were cast with HSC having a compressive

    strength of 85 MPa. A parametric study was carried out

    to investigate the effect of concrete compressive strength and

    GFRP longitudinal and transverse reinforcement ratios on the

    moment-curvature behavior of the GFRP bar-reinforced NSC and

    HSC circular columns under combined axial and flexural loads.

    The results of the parametric study indicate that increasing the

    concrete compressive strength or GFRP longitudinal reinforcement

    ratio leads to an increase in the bending moment capacity

    and a decrease in the ductility of GFRP bar-reinforced concrete

    columns. The confinement provided by the GFRP helixes (transverse

    reinforcement) improves both the bending moment capacity

    and the ductility of the GFRP bar-reinforced circular concrete

    columns. The improvement in the performance (bending moment

    and ductility) due to increasing the GFRP transverse reinforcement

    ratio was greater in the GFRP bar-reinforced NSC columns than in

    the GFRP bar-reinforced HSC columns.

Publication Date


  • 2019

Citation


  • Hasan, H., Karim, H., Sheikh, M. Neaz. & Hadi, M. N. S. (2019). Moment-Curvature Behavior of Glass Fiber-Reinforced Polymer Bar-Reinforced Normal-Strength Concrete and High-Strength Concrete Columns. ACI Structural Journal, 116 (4), 65-75.

Scopus Eid


  • 2-s2.0-85069153957

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers1/2931

Number Of Pages


  • 10

Start Page


  • 65

End Page


  • 75

Volume


  • 116

Issue


  • 4

Place Of Publication


  • United States