Cross‐sectional and confining system unification on peak compressive strength of FRP confined concrete

Javad Shayanfar*, Joaquim A.O. Barros, Mohammadali Rezazadeh

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Despite the many axial confinement models already proposed for the determination of the peak compressive strength of fiber-reinforced polymer (FRP) confined concrete columns, they are, in general, applicable only to concrete columns of circular or square cross-section, with full or partial confinement arrangements. In this study, by proposing a cross-sectional and confining system unification approach, a new model is developed and calibrated based on a large test database. For the generalization of the cross-section and FRP-based confinement arrangement, the concept of confinement efficiency factor with a unified mathematical framework is adopted. By simulating experimental tests and comparing to the predictions of existing confinement models, the developed one demonstrates a very high reliability and suitable for design purposes by balancing the simplicity of the usage and accuracy.

Original languageEnglish
JournalStructural Concrete
Early online date1 Nov 2022
DOIs
Publication statusE-pub ahead of print - 1 Nov 2022

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