The Effect of Confinement Method and Specimen End Condition on Behavior of FRP-Confined Concrete under Concentric Compression

Abstract:

This paper presents an experimental investigation on the influence of confinement method and specimen end condition on axial compressive behavior of fiber reinforced polymer (FRP)-confined concrete. A total of 12 aramid FRP (AFRP)-confined concrete specimens with circular cross-sections were tested. Half of these specimens were manufactured as concrete-filled FRP tubes (CFFTs) and the remaining half were FRP-wrapped concrete cylinders. The effect of specimen end condition was examined on both CFFTs and FRP-wrapped specimens. This parameter was selected to study the influence of loading the FRP jacket on the axial compressive behavior. In this paper the experimentally recorded stress-strain relationships are presented graphically and key experimental outcomes discussed. The results indicate that the performance of FRP-wrapped specimens is similar to that of CFFT specimens and the influence of specimen end condition is negligible.

• Periodical: Applied Mechanics and Materials (Volumes 351-352)
• Pages: 650-653
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.351-352.650
• Online since: August 2013
• Authors: Thomas Vincent, Togay Ozbakkloglu
• Keywords: Concrete-Filled FRP Tube (CFFT), Confinement, Confinement Method, End Condition, Fiber Reinforced Polymer (FRP), FRP Wrapping

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