Compressive strength of circular concrete filled steel tube columns

Dundu, M.

doi:10.1016/j.tws.2012.03.008

Cited by 117 publications

(50 citation statements)

References 19 publications

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“…modern composite elements. Recent advances, as a few instances, were made by Teng et al [7], Yang and Han [8,9], Tao et al [10], Dundu [11], Chitawadagi et al [12]. Significant increase in the capacity was obtained for concrete filled tubes relative to the bare steel tubes, which was attributable to load carrying capacity of the concrete and steel respectively and, in turn, the interaction of the two materials was also of importance.…”

Section: Introductionmentioning

confidence: 99%

Timber filled CFRP jacketed circular steel tubes under axial compression

Ghazijahani¹,

Jiao²,

Holloway³

2015

Construction and Building Materials

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Section: Introductionmentioning

confidence: 99%

Timber filled CFRP jacketed circular steel tubes under axial compression

Ghazijahani¹,

Jiao²,

Holloway³

2015

Construction and Building Materials

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“…Concrete-filled steel tube (CFST) columns have been widely used in many engineering structures in that the CFST columns combine the best characteristics of both steel and concrete materials including high strength, high ductility, and high stiffness (Dundu 2012). In a CFST column, the steel tube and the concrete core are loaded simultaneously; however, the steel tube in these columns will be less effective in confining the concrete in comparison with the steel tube-confined concrete (STCC) columns in which only the concrete core is loaded (Yu et al 2010).…”

Section: Introductionmentioning

confidence: 99%

Experimental study and calculation of confinement relationships for prestressed steel tube-confined compressed concrete stub columns

Nematzadeh

Naghipour

Jalali

et al. 2017

Journal of Civil Engineering and Management

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Abstract. The current paper aims to present the results of an experimental investigation into the compressive strength of prestressed steel tube-confined compressed concrete (PSTC) stub columns. Here, to prestress the confined concrete, an innovative technique is utilized, in which the fresh concrete is subjected to compression while the steel tube is simultaneously pretensioned laterally by applying external pressure to the fresh concrete. A total of 135 confined specimens were tested under axial compressive loading to determine the confinement strength of the specimens. Moreover, new confinement relationships for the load-carrying capacity of the PSTC columns were proposed in terms of the prestressing ratio ( r P ), reference concrete strength ( c f ), and tube outer diameter to wall thickness ratio ( / D t ). Finally, a parametric study was conducted to evaluate the effect that the parameters r P , c f , and / D t have on the compressive strength of the prestressed confined concrete. The results indicate that the confined concrete prestressed by the present technique demonstrates significantly enhanced load-carrying capacity; however, increasing the prestressing level slightly affects it.

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“…A concrete-filled steel tubular (CFST) column is formed by filling a steel tube with concrete, as shown Figure 1. CFST columns are used in buildings, bridges, electric transmission lines and offshore structures [3][4][5][6] due to their abundant properties. Steel sections with concrete infill are being widely used as structural members, since filling the steel section with concrete increases both its strength and ductility without increasing the section size.…”

Section: Introductionmentioning

confidence: 99%

Parametric Study on the Axial Behaviour of Concrete Filled Steel Tube (CFST) Columns

Yadav¹

2017

AJASR

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Abstract:Concrete filled steel tube (CFST) columns are widely used in civil engineering structures due to its abundant structural benefits like excellent seismic behaviour, ultimate load bearing capacity, fire resistivity, excellent ductility and energy absorption capacity, particularly in zones of high seismic risk. Due to their excellent engineering properties, CFST columns are used in buildings, bridges, electric transmission line and offshore structures. The ultimate load carrying capacity of CFST columns depends upon various parameters such as D/t ratio, steel grade, concrete grade, etc. Abaqus software is used for the finite element modelling of CFST Columns. In this study the ultimate axial load carrying capacity of CFST column is investigated by changing diameter-to-thickness (D/t) ratio, steel grade and concrete grade. Results shows that the ultimate load capacity decreases by increase in D/t ratio but increases by increase in steel grade and concrete grade.

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Compressive strength of circular concrete filled steel tube columns

Cited by 117 publications

References 19 publications

Timber filled CFRP jacketed circular steel tubes under axial compression

Timber filled CFRP jacketed circular steel tubes under axial compression

Experimental study and calculation of confinement relationships for prestressed steel tube-confined compressed concrete stub columns

Parametric Study on the Axial Behaviour of Concrete Filled Steel Tube (CFST) Columns

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