Axial compressive behavior of FRP-confined concrete: Experimental test database and a new design-oriented model
Togay Ozbakkaloglu,Jian C. Lim +1 more
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TLDR
In this article, the authors present a comprehensive test database constructed from the results of axial compression tests on 832 circular FRP-confined concrete specimens published in the literature.Abstract:
A large number of experimental studies have been conducted over the last two decades to understand the behavior of FRP-confined concrete columns. This paper presents a comprehensive test database constructed from the results of axial compression tests on 832 circular FRP-confined concrete specimens published in the literature. The database was assembled through an extensive review of the literature that covered 3042 test results from 253 experimental studies published between 1991 and the middle of 2013. The suitability of the results for the database was determined using carefully chosen selection criteria to ensure a reliable database. This database brings reliable test results of FRP-confined concrete together to form a unified framework for future reference. Close examination of the test results reported in the database led to a number of important observations on the influence of important parameters on the behavior of FRP-confined concrete. A new design-oriented model that was developed to quantify these observations is presented in the final part of the paper. It is shown that the predictions of the proposed model are in close agreement with the test results and the model provides improved predictions of the ultimate conditions of FRP-confined concrete compared to any of the existing models.read more
Citations
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Behavior of Hollow and Concrete-Filled FRP-HSC and FRP-HSC-Steel Composite Columns Subjected to Concentric Compression
TL;DR: In this article, the effects of key parameters on the compressive behavior of fiber reinforced polymer (FRP)-concrete-steel composite columns that were manufactured with S-Glass FRP tubes were investigated.
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Investigating the behaviour of hybrid fibre-reinforced reactive powder concrete beams after exposure to elevated temperatures
TL;DR: In this article, the structural behavior of reinforced reactive powder concrete (RPC) beams under service load and fire exposure was investigated, and the results showed that adding hybrid fibres could considerably improve the residual stiffness of fire-damaged beams.
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Strain Rate Effect on Properties of Rubberized Concrete Confined with Glass Fiber–Reinforced Polymers
TL;DR: In this paper, the behavior of rubberized-concrete-filled fiber-reinforced polymer tubes (RCFFT) under different strain rates was compared to that of conventional concrete-filled Fiber-Reinforced Polymers (CFFT).
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Reliability assessment for flexural FRP-Strengthened reinforced concrete beams based on Importance Sampling
TL;DR: In this article, reliability analysis of flexural FRP-strengthened reinforced concrete (RC) beams with the ultimate limit state is studied, and four failure modes are considered: concrete crushing, FRP rupture, intermediate crack-induced debonding, debonding and end debonding.
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Behavior and modeling of FRP-confined ultra-lightweight cement composites under monotonic axial compression
TL;DR: In this article, a new strength model with an improved stress-strain relationship for FRP-confined ULCC columns was proposed to predict the post-peak strain hardening-softening mechanism of confined concrete.
References
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Journal ArticleDOI
Design-oriented stress–strain model for FRP-confined concrete
Linda Lam,Jinguang Teng +1 more
TL;DR: In this paper, a new design-oriented stress-strain model is proposed for concrete confined by FRP wraps with fibres only or predominantly in the hoop direction based on a careful interpretation of existing test data and observations.
Performance and application of a design-oriented stress-strain model for FRP-confined concrete
X.F. Yuan,L. Lam,Jinguang Teng +2 more
Journal ArticleDOI
Compressive Behavior of Concrete Confined by Carbon Fiber Composite Jackets
TL;DR: In this paper, axial compression test results of 27 concrete cylinders confined by carbon fiber reinforced polymer composite jackets were described, and the failure of the confined concrete was dominated by the rupture of the jacket at an average strain much smaller than the ultimate strain obtained from tension tests of flat coupons.
Journal ArticleDOI
Effect of Column Parameters on FRP-Confined Concrete
TL;DR: In this article, the effect of shape, length, and bond on FRP-confined concrete columns is studied and a modified confinement ratio that is a function of the corner radius and the jacket's hoop strength is calculated.
Journal ArticleDOI
Analysis-oriented stress–strain models for FRP–confined concrete
T. Jiang,Jinguang Teng +1 more
TL;DR: In this article, a critical review and assessment of existing analysis-oriented models for FRP-confined concrete is presented; this database includes 23 new tests which have not previously been published.