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Behavior of Concentrically Loaded GFRP-RC Circular Hollow Columns with Varying Transverse Reinforcement Ratios

  • Conference paper
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8th International Conference on Advanced Composite Materials in Bridges and Structures

Part of the book series: Lecture Notes in Civil Engineering ((LNCE,volume 267))

  • 253 Accesses

Abstract

Limited experimental studies have been implemented to examine the performance of hollow concrete columns (HCCs) reinforced with glass fiber-reinforced polymers (GFRP) reinforcements. This study investigated the performance of four large-scale HCCs that were tested under concentric load. These columns were reinforced in the longitudinal direction with eight GFRP bars No.5 and with different transverse reinforcement ratios (nil, 0.75, 1.10, and 2.20%), which were achieved by changing the spiral’s pitch (no transverse reinforcement, 120, 80, and 40 mm). The 305/113 mm outer/inner diameter columns were designed according to Canadian design code requirements. The objective of the study was to investigate the effect of the transverse reinforcement ratio (in terms of the spiral’s spacing). The test results indicated that the GFRP-RC hollow columns exhibited a compression failure in terms of concrete cover spalling, and the GFRP reinforcement remained undamaged up to the failure. The GFRP longitudinal reinforcement significantly contributed to resisting the peak loads in all tested columns, on average 11% of the ultimate carrying load. It also was found that increasing the transverse reinforcement ratio from 0.75 to 2.20% increases 8–14% in the peak and 1.60–1.90 in the confinement efficiency.

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Acknowledgements

This research was conducted with funding from the Tier-1 Canada Research Chair in Advanced Composite Materials for Civil Structures, the Natural Sciences and Engineering Research Council of Canada (NSERC), and the Fonds de recherche du Québec en nature et technologies (FRQ-NT). The authors thank Pultrall Inc. (Thetford Mines, QC, Canada) for donating the GFRP reinforcement and the technical staff of the CFI structural laboratory in the Department of Civil Engineering at the University of Sherbrooke.

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Authors and Affiliations

  1. Department of Civil and Building Engineering, University of Sherbrooke, Sherbrooke, QC, Canada

    Mohammed Gamal Gouda, Hamdy M. Mohamed & Brahim Benmokrane

  2. School of Civil Engineering and Surveying, University of Southern Queensland, Toowoomba, Australia

    Allan C. Manalo

Authors
  1. Mohammed Gamal Gouda
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  2. Hamdy M. Mohamed
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  3. Allan C. Manalo
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  4. Brahim Benmokrane
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Corresponding author

Correspondence to Hamdy M. Mohamed .

Editor information

Editors and Affiliations

  1. Department of Civil Engineering, Université de Sherbrooke, Quebec, QC, Canada

    Brahim Benmokrane

  2. Civil and Building Engineering, Université de Sherbrooke, Sherbrooke, QC, Canada

    Khaled Mohamed

  3. Civil and Building Engineering, Université de Sherbrooke, Sherbrooke, QC, Canada

    Ahmed Farghaly

  4. Civil and Building Engineering, Université de Sherbrooke, Sherbrooke, QC, Canada

    Hamdy Mohamed

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© 2023 Canadian Society for Civil Engineering

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Gouda, M.G., Mohamed, H.M., Manalo, A.C., Benmokrane, B. (2023). Behavior of Concentrically Loaded GFRP-RC Circular Hollow Columns with Varying Transverse Reinforcement Ratios. In: Benmokrane, B., Mohamed, K., Farghaly, A., Mohamed, H. (eds) 8th International Conference on Advanced Composite Materials in Bridges and Structures. Lecture Notes in Civil Engineering, vol 267. Springer, Cham. https://doi.org/10.1007/978-3-031-09409-5_19

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  • DOI: https://doi.org/10.1007/978-3-031-09409-5_19

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-031-09408-8

  • Online ISBN: 978-3-031-09409-5

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