Analysis of steel-reinforced concrete-filled-steel tubular (SRCFST) columns under cyclic loading

Xu, Chang; Wei, Youyi; Yun, Yanchun

doi:10.1016/j.conbuildmat.2011.08.033

Cited by 90 publications

(31 citation statements)

References 9 publications

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“…They have much more advantages compared with the ordinary steel or concrete system including higher strength and stiffness, higher ductility, and larger energy absorption capacity [1]. With the benefits of CFT, the use of CFT columns is becoming more popular and the performance of concrete filled steel tubes has caught more and more research attentions [1][2][3][4][5][6][7][8][9]. In most cases, such as the pier of bridges and arch structures, CFT columns are subjected to axially compression loads.…”

Section: Introductionmentioning

confidence: 99%

Mechanical behavior of circular and square concrete filled steel tube stub columns under local compression

Ding

Liu

et al. 2015

Thin-Walled Structures

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a b s t r a c tThis paper presents a combined experimental and numerical study on the behavior of both circular and square concrete-filled steel tube (CFT) stub columns under local compression. Twelve circular and eight square CFT stub columns were tested to study their bearing capacity and the key influential parameters. A 3D finite element model was established for simulation and parametric study to investigate the structural behavior of the stub columns. The numerical results agreed well with the experimental results. In addition, analytical formulas were proposed to calculate the load bearing capacity of CFT stub columns under local compression.

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Section: Introductionmentioning

confidence: 99%

Mechanical behavior of circular and square concrete filled steel tube stub columns under local compression

Ding

Liu

et al. 2015

Thin-Walled Structures

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“…To verify the accuracy and validity of the finite-element modeling under lateral cyclic loading, the experimental test results of a previously published test specimen by Chang et al (2012) were used and compared with the numerical results obtained from material and geometric nonlinear static analysis for calibration of analyses. The geometrical and material parameters for the test specimen are summarized in Table 2.…”

Section: Verification Of Finite-element Modeling Under Lateral Cyclicmentioning

confidence: 99%

“…The results showed that composite columns had higher strength, energy absorption capacity, and ductility performance due to the composite action between steel tube, reinforcing steel section, and concrete. Chang et al (2012) present a numerical study of cyclically loaded 1 3 cross-shaped steel-reinforced concrete-filled tube (SRCFT) and the mechanical performance of SRCFT columns under cyclic loading. They found that the presence of the section steel could carry the lateral load and reduce the tensile zone of the concrete section.…”

Section: Introductionmentioning

confidence: 99%

Geometrical metallic shell behavior study under compression

Sahu

Gupta

2013

Int J Adv Struct Eng

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SRCFT columns are formed by inserting a steel section into a concrete-filled steel tube. These types of columns are named steel-reinforced concrete-filled steel tubular (SRCFT) columns. The current study aims at investigating the various types of reinforcing steel section to improve the strength and hysteresis behavior of SRCFT columns under axial and lateral cyclic loading. To attain this objective, a numerical study has been conducted on a series of composite columns. First, FEM procedure has been verified by the use of available experimental studies. Next, eight composite columns having different types of cross sections were analyzed. For comparison purpose, the base model was a CFT column used as a benchmark specimen. Nevertheless, the other specimens were SRCFT types. The results indicate that reinforcement of a CFT column through this method leads to enhancement in load-carrying capacity, enhancement in lateral drift ratio, ductility, preventing of local buckling in steel shell, and enhancement in energy absorption capacity. Under cyclic displacement history, it was observed that the use of cross-shaped reinforcing steel section causes a higher level of energy dissipation and the moment of inertia of the reinforcing steel sections was found to be the most significant parameter affecting the hysteresis behavior of SRCFT columns.

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“…Lie [14] gave the resistance of circular steel columns filled with bar-reinforced concrete. Chang et al [15] and Zhu et al [16] conducted experimental studies on the performance of steel-reinforced concrete-filled-steel tubular members. Wang et al [18] studied on experimental performance twin-column RCFT pier.…”

Section: Introductionmentioning

confidence: 99%

“…Some studies have been conducted on the static performance of RCFST columns [12][13][14][15][16][17][18][19][20]. Lie [14] gave the resistance of circular steel columns filled with bar-reinforced concrete.…”

Section: Introductionmentioning

confidence: 99%

Study on Axial Compression Bearing Capacity of Reinforced Concrete Filled Steel Tube Members

Zha¹,

Li²,

Wang³

et al. 2016

Volume 12 Number 2

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ABSTRACT:The bearing capacity equation of reinforced concrete filled steel tube (RCFST) members under axial loads is derived by using the combined unified and limit equilibrium theories. The concrete strength increase due to the constraint effect of the steel tube is taken into account through the use of unified theory; whereas the concrete strength increase due to the constraint effect of the stirrups is considered through the use of the limit equilibrium theory. Three-dimensional nonlinear finite element analysis and experimental tests were carried out and the corresponding results are reported in this paper. The comparisons of the numerical, experimental and theoretical results show that there are in good agreement between these three different methods. However, the present theoretical analysis model is not only simple and convenient to use but also consistent with existing Chinese design codes for CFST columns.

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Analysis of steel-reinforced concrete-filled-steel tubular (SRCFST) columns under cyclic loading

Cited by 90 publications

References 9 publications

Mechanical behavior of circular and square concrete filled steel tube stub columns under local compression

Mechanical behavior of circular and square concrete filled steel tube stub columns under local compression

Geometrical metallic shell behavior study under compression

Study on Axial Compression Bearing Capacity of Reinforced Concrete Filled Steel Tube Members

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