A new design-oriented model of glass fiber-reinforced polymer-reinforced hollow concrete columns

Hollow concrete columns (HCCs) reinforced with glass fiber-reinforced polymer (GFRP) bars and spirals are considered an effective design solution for bridge piers, electric poles, and ground piles because they use less material and maximize the strength-to-weight ratio. HCC behavior is affected by critical design parameters such as inner-to-outer diameter ratio, reinforcement and volumetric ratios, and concrete compressive strength. This paper proposes a new design-oriented model based on the plasticity theory of concrete and considering the critical design parameters to accurately describe the compressive load-strain behavior of GFRP-reinforced HCCs under monotonic and concentric loading. The validity of the proposed model was evaluated against experimental test results for 14 full-scale hollow concrete columns reinforced with GFRP bars and spirals. The results demonstrated that the proposed design-oriented model was accurate and yielded a very good agreement with the axial compressive load behavior of GFRP-reinforced hollow concrete columns.

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    • Abstract reprinted with permission from the American Concrete Institute.
  • Authors:
    • AlAjarmeh, O S
    • Manalo, A C
    • Benmokrane, B
    • Karunasena, W
    • Ferdous, W
    • Mendis, P
  • Publication Date: 2020-3

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  • English

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  • Accession Number: 01758941
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Nov 13 2020 3:31PM