Shake table response and analysis of a concrete-filled FRP tube bridge column

Zaghi, Arash E.; Saiidi, M. Saiid; Mirmiran, Amir

doi:10.1016/j.compstruct.2011.12.018

Cited by 51 publications

(17 citation statements)

References 12 publications

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“…One such application, which has received much recent attention (e.g. Seible et al 1999;Rizkalla 2001, 2002;Fam et al 2005;Shao and Mirmiran 2005;Saatcioglu 2006, 2007;Zaghi et al 2012), involves the use of concrete-filled FRP tubes (CFFTs) as high-performance composite columns in earthquakeresistant construction of new structures. Existing studies have demonstrated the ability of CFFTs to develop very high inelastic deformation capacities under simulated seismic loading, which makes them an attractive alternative for construction of new earthquake-resistant columns (Yamakawa et al 2003;Shao and Mirmiran 2005;Saatcioglu 2006, 2007;Saatcioglu et al 2008).…”

Section: Introductionmentioning

confidence: 99%

Axial Compressive Behavior of Square and Rectangular High-Strength Concrete-Filled FRP Tubes

Ozbakkaloglu

2013

J. Compos. Constr.

144

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This paper presents results of an experimental study on the behavior of square and rectangular high-strength concrete (HSC)-filled fiber reinforced polymer (FRP) tubes (HSCFFTs) under concentric compression. The effects of the tube thickness, sectional aspect ratio and corner radius on the axial compressive behavior of concrete-filled FRP tubes (CFFTs) were investigated experimentally through the tests of 24 CFFTs that were manufactured using unidirectional carbon fiber sheets and high-strength concrete (HSC) with 78 MPa average compressive strength. As the first experimental investigation on the axial compressive behavior of square and rectangular HSCFFTs, the results of the study reported herein allows a number of significant conclusions to be drawn. First and foremost, test results indicate that sufficiently confined square and rectangular HSCFFTs can exhibit highly ductile behavior. The results also indicate that confinement effectiveness of FRP tubes increases with an increase in corner radius and decreases with an increase in sectional aspect ratio. It is also observed and discussed that HSCFFTs having tubes of low confinement effectiveness may experience a significant strength loss at the point of transition on their stress-strain curves. Furthermore, it is found that the behavior of HSCFFTs at this region differ from that of normal-strength CFFTs and it is more sensitive to the effectiveness of confining tube. Examination of the test results have also lead to a number of important observations on the influence of the key confinement parameters on the development and distribution of the hoop strains on the tubes of CFFTs, which are presented and discussed in the paper.

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Section: Introductionmentioning

confidence: 99%

Axial Compressive Behavior of Square and Rectangular High-Strength Concrete-Filled FRP Tubes

Ozbakkaloglu

2013

J. Compos. Constr.

144

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“…In such sections, the inner circular steel tube is designed to provide confinement of the core concrete, thereby achieving high load-bearing capacity and stiffness. However, the axial stress-strain curve of such columns shows softening behavior rather than a hardening behavior after sectional yielding, as illustrated by the stress-strain relationship of CFFT section columns [21][22][23][24][25]. The stress-strain relationship of CFFT columns under axial compression presents bilinear ascending behavior, leading to a load-bearing capacity superior to most previous hybrid column sections [26,27].…”

Section: Introductionmentioning

confidence: 99%

Mechanical behavior of concrete-filled square steel tube with FRP-confined concrete core subjected to axial compression

Feng

Shi

Bai

et al. 2015

Composite Structures

330

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“…These advantages lead to extensive investigations of the static behaviour of Concrete Filled FRP Tubes (CFFTs) such as the investigation by Fam and Rizkalla [7] of their flexural performance, the study by Cole and Fam [8] of their enhancement by the introduction of internal steel and FRP reinforcement, the study by Fam and Mandal [9] on prestressing the system, and the study of their behaviour under combined axial and flexural loads by Flisak et al [10]. ElGawady et al [11] and Zaghi et al [12] investigated the seismic behaviour of CFFTs in two separate studies. Although many aspects of the static behaviour of CFFTs have been studied, their behaviour under impact had yet to be investigated and an impact design methodology for them yet to be developed.…”

Section: Introductionmentioning

confidence: 99%