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

Shayanfar, Javad, Barros, Joaquim A. O. and Rezazadeh, Mohammadali (2022) Cross‐sectional and confining system unification on peak compressive strength of FRP confined concrete. Structural Concrete. ISSN 1464-4177 (In Press)

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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.

Item Type: Article
Additional Information: Funding information: This study is a part of the project “Sticker –Innovative technique for the structural strengthening based on using CFRP laminates with multifunctional attributes and applied with advanced cement adhesives,” with the reference POCI‐01‐0247‐FEDER‐039755.” The first author also acknowledges the support provided by FCT PhD individual fellowship 2019 with the reference of “SFRH/BD/148002/2019.”
Uncontrolled Keywords: FRP-confined concrete; Peak compressive strength; Partial confinement; Square cross-section; Unified model
Subjects: H300 Mechanical Engineering
Department: Faculties > Engineering and Environment > Mechanical and Construction Engineering
Depositing User: Elena Carlaw
Date Deposited: 19 Dec 2022 16:30
Last Modified: 19 Dec 2022 16:45

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