Effect of load eccentricity on the stress–strain relationship of FRP-confined concrete columns

Wu, Yu-Fei

doi:10.1016/j.compstruct.2012.11.023

Cited by 183 publications

(105 citation statements)

References 54 publications

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“…Moreover, differently from the case of pure compression, in presence of combined axial load and bending moment a gradient of concrete lateral dilatation occurs, because a part of the cross-section is in tension. Only few authors investigated on the effectiveness of confinement and on the mechanical properties of confined concrete in case of eccentric axial load [20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Behavior of CFRP Confined Rc Columns Under Axial Load and Uniaxial Cyclic Lateral Loading

Zoppo¹,

Ludovico²,

Balsamo³

et al. 2017

Proceedings of the 6th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

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Section: Introductionmentioning

confidence: 99%

Behavior of CFRP Confined Rc Columns Under Axial Load and Uniaxial Cyclic Lateral Loading

Zoppo¹,

Ludovico²,

Balsamo³

et al. 2017

Proceedings of the 6th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

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“…This is especially because, in the USA, UK and Canada, the performance of a large number of RC bridge and building columns have deteriorated due to the corrosion in steel reinforcement (Saafi et al 1999). Demers and Neale (1994), Nanni and Bradford (1995), Karbhari and Gao (1997), Berthet et al (2005), Wu et al (2006), Youssef et al (2007), Wu and Jiang (2013) reported an increase in the FRP sheet confined concrete strength and strain between 36% and 186%, and 41% and 140%, respectively. Lam and Teng (2002), Realfonzo and Napoli (2011), Ozbakkaloglu and Lim (2013), Hadi (2013, 2014a, b), Lim and Ozbakkaloglu (2014) and Sadeghian and Fam (2015) compiled a database of experimental investigations of FRP sheet confined concrete columns to develop models to determine confined concrete strength and strain of FRP sheet confined concrete columns.…”

Section: Introductionmentioning

confidence: 99%

Axial compressive behaviour of circular CFFT: Experimental database and design-oriented model

Khan¹,

Sheikh²,

Hadi³

2016

Steel Compos. Struct.

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Concrete Filled Fibre Reinforced Polymer Tube (CFFT) for new columns construction has attracted significant research attention in recent years. The CFFT acts as a formwork for new columns and a barrier to corrosion accelerating agents. It significantly increases both the strength capacity (Strength enhancement ratio) and the ductility (Strain enhancement ratio) of reinforced concrete columns. In this study, based on predefined selection criteria, experimental investigation results of 134 circular CFFT columns under axial compression have been compiled and analysed from 599 CFFT specimens available in the literature. It has been observed that actual confinement ratio (expressed as a function of material properties of fibres, diameter of CFFT and compressive strength of concrete) has significant influence on the strength and ductility of circular CFFT columns. Design oriented models have been proposed to compute the strength and strain enhancement ratios of circular CFFT columns. The proposed strength and strain enhancement ratio models have significantly reduced Average Absolute Error (AAE), Mean Square Error (MSE), Relative Standard Error of Estimate (RSEE) and Standard Deviation (SD) as compared to other available strength and strain enhancement ratios of circular CFFT column models. The predictions of the proposed strength and strain enhancement ratio models match well with the experimental strength and strain enhancement ratios investigation results in the compiled database. (Received April 21, 2016, Revised June 22, 2016, Accepted June 23, 2016 Abstract. Concrete Filled Fibre Reinforced Polymer Tube (CFFT) for new columns construction has attracted significant research attention in recent years. The CFFT acts as a formwork for new columns and a barrier to corrosion accelerating agents. It significantly increases both the strength capacity (Strength enhancement ratio) and the ductility (Strain enhancement ratio) of reinforced concrete columns. In this study, based on predefined selection criteria, experimental investigation results of 134 circular CFFT columns under axial compression have been compiled and analysed from 599 CFFT specimens available in the literature. It has been observed that actual confinement ratio (expressed as a function of material properties of fibres, diameter of CFFT and compressive strength of concrete) has significant influence on the strength and ductility of circular CFFT columns. Design oriented models have been proposed to compute the strength and strain enhancement ratios of circular CFFT columns. The proposed strength and strain enhancement ratio models have significantly reduced Average Absolute Error (AAE), Mean Square Error (MSE), Relative Standard Error of Estimate (RSEE) and Standard Deviation (SD) as compared to other available strength and strain enhancement ratios of circular CFFT column models. The predictions of the proposed strength and strain enhancement ratio models match well with the experimental strength and strain enhancement ratios investigation res...

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“…This material can be utilized to improve the blast and impact resistance of structures. It has been used for strengthening and retrofitting existing structures, as well as for building new structures including beams, slabs, columns, and walls [5][6][7]. The use of FRPs has been shown to increase the strength, stiffness, and ductility of structures.…”

Section: Introductionmentioning

confidence: 99%

High‐Energy Impact Behaviors of Hybrid Composite Plates Strengthened with 3D‐UHMWPE Composites

Lee

Kim

et al. 2018

Shock and Vibration

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This study deals with drop-impact effects of new hybrid concrete plates strengthened with an ultrahigh molecular weight polyethylene (UHMWPE). The proposed 3D-UHMWPE results in excellent mechanical properties such as high abrasion resistance, impact strength, and low coefficient of friction. These special properties allow the product to be used in several high-performance applications. In this study, we used two kinds of high-performance materials for the impact reinforcement of a structure made of conventional materials such as a concrete. In particular, the impact mechanism of a fiber-concrete hybrid structure was studied using various parameters. The parametric studies are focused on the various effects of drop-impact on the structural performance. The combined effects of using different fiber-reinforced materials on the impact behavers are also investigated.

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Effect of load eccentricity on the stress–strain relationship of FRP-confined concrete columns

Cited by 183 publications

References 54 publications

Behavior of CFRP Confined Rc Columns Under Axial Load and Uniaxial Cyclic Lateral Loading

Behavior of CFRP Confined Rc Columns Under Axial Load and Uniaxial Cyclic Lateral Loading

Axial compressive behaviour of circular CFFT: Experimental database and design-oriented model

High‐Energy Impact Behaviors of Hybrid Composite Plates Strengthened with 3D‐UHMWPE Composites

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