A study on axial compressive behaviors of reinforced concrete filled tubular steel columns

Xiamuxi, Alifujiang; Hasegawa, Akira

doi:10.1016/j.jcsr.2012.03.023

Cited by 41 publications

(21 citation statements)

References 10 publications

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“…From the equality of the right-hand sides of the equations (17) and (18), after carrying out appropriate transformations, the formula for determining the averaged pressure can be obtained: (19) in which the parameter K r is determined depending on the geometric and deformative characteristics of the concrete core and the internal steel tube:…”

Section: Strength Of the Concrete Corementioning

confidence: 99%

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Strength and Deformability of the Concrete Core of Precompressed Concrete Filled Steel Tube Columns of Annular Cross-Section

Кришан

Astafeva

2019

MATEC Web Conf.

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The advantages of short concrete filled steel tube columns with a precompressed concrete core are presented in the article. Particular cases, where such compression is most appropriate, are listed. Taking into consideration the structural features of concrete filled steel tube columns it is recommended to calculate their bearing capacity on the basis of deformation model of reinforced concrete. The reliability of this calculation will be largely dependent on the conformity of the accepted diagram of the concrete core deformation with its actual behavior. Formulas for determining the strength of precompressed concrete core and the ultimate strain of its shortening are proposed, which allow constructing the sufficiently accurate deformation diagram.

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Section: Strength Of the Concrete Corementioning

confidence: 99%

“…There are many proposals for determining deformations сс1  and cc2  in the literature. Some of them are presented in [3,[13][14][15][16][17][18][19][20]. Most researchers recommend using the following formula…”

Section: Axial Strain Of the Concrete Corementioning

confidence: 99%

Strength and Deformability of the Concrete Core of Precompressed Concrete Filled Steel Tube Columns of Annular Cross-Section

Кришан

Astafeva

2019

MATEC Web Conf.

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“…In this type of composite column, the concrete can be plain such as (CFT) or reinforced concrete with steel bar (RCFT). Current studies (Xiamuxi and Hasegawa 2012;Endo et al 2000;Hua et al 2005;Xiamuxi and Hasegawa 2011) show that RCFT columns have better performance regarding moderate and severe earthquake excitations, higher toughness, and ductility in comparison with CFT columns.…”

Section: Introductionmentioning

confidence: 98%

Evaluation of Egyptian code provisions for seismic design of moment-resisting-frame multi-story buildings

Raheem

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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“…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%

“…Wang et al [18] studied on experimental performance twin-column RCFT pier. Endo et al [19] and Xiamuxi et al [20] obtained the evaluation for axial compressive strength of RCFST columns and the results were validated using experimental data. But most studies on the mechanical properties at room temperature didn't consider the constraints of the stirrup on core 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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A study on axial compressive behaviors of reinforced concrete filled tubular steel columns

Cited by 41 publications

References 10 publications

Strength and Deformability of the Concrete Core of Precompressed Concrete Filled Steel Tube Columns of Annular Cross-Section

Strength and Deformability of the Concrete Core of Precompressed Concrete Filled Steel Tube Columns of Annular Cross-Section

Evaluation of Egyptian code provisions for seismic design of moment-resisting-frame multi-story buildings

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

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