Developments and advanced applications of concrete-filled steel tubular (CFST) structures: Members

Han, Lin-Hai; Li, Wei; Bjorhovde, Reidar

doi:10.1016/j.jcsr.2014.04.016

Cited by 1,289 publications

(376 citation statements)

References 48 publications

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“…"Hard contact" was also used to define the contact between steel tube and core concrete in the normal direction. The Mohr-Coulomb friction model was applied in the tangential direction for the contact between steel tube and core concrete while the friction coefficient is set to be 0.25 [4]. Since the section steel was embedded in the core of the CFST column, the ''Tie contact'' constraint was used to describe the contact between concrete and section steel.…”

Section: Description Of Finite Element Model Of Srscfshs Columnmentioning

confidence: 99%

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Performance of Steel-Reinforced Square Concrete-Filled Steel Hollow Section (Srscfshs) Columns Under Uniaxial Compression

Cai¹,

Pan²,

Wu³

2016

Volume 12 Number 4

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Due to high load carrying capacity and convenience of designing column-beam connections, steel-reinforced square concrete-filled steel hollow section (SRSCFSHS) columns have been increasingly employed in the structural engineering. In this study, the mechanical behaviors of SRSCFSHS columns were numerically investigated with the software of ABAQUS/standard solver. To verify the validity of the finite element models of the composite columns, the simulation results were compared with the existing experimental results, and good agreement was achieved. According to the simulation results of SRSCFSHS columns, the encased section steel could restrain the generation or propagation of cracks in core concrete thus the composite column can obtain a higher strength and better ductility than that of normal square concrete filled steel tube (CFST) columns. Then, a total of twenty-six SRSCFSHS columns were numerically studied to examine the effect of steel tube ratio (t), section steel ratio (s), concrete strength (cu), yield strength of steel tube (

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Section: Description Of Finite Element Model Of Srscfshs Columnmentioning

confidence: 99%

“…It is well known that CFST structures can offer numerous structural benefits, including high strength, favorable fire resistance and ductility, large energy absorption capacities and so on [4][5][6][7]. There are many cross section types for CFST columns, among which square and circle CFST columns are the most typical ones.…”

Section: Introductionmentioning

confidence: 99%

Performance of Steel-Reinforced Square Concrete-Filled Steel Hollow Section (Srscfshs) Columns Under Uniaxial Compression

Cai¹,

Pan²,

Wu³

2016

Volume 12 Number 4

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show abstract

“…A model to predict the load against strain behaviour was proposed and the prepeak and post-peak behaviour of concrete-filled steel columns when axially loaded could be predicted from the response of the steel tube and concrete core. As a result, Eurocode 4 and Recently, Han et al (2014) presented some developments and advanced applications of CFT structures focusing on the member behaviour. The authors showed a comparison of the measured results between a circular steel (S) stub column, a reinforced-concrete (RC) stub column and a concrete-filled steel tubular (CFST) stub column without steel reinforcement.…”

Section: Introductionmentioning

confidence: 99%

Structural assessment of composite seam-welded rectangular hollow columns

Castanheira

Lima

Vellasco

et al. 2018

Proceedings of the Institution of Civil Engineers - Structures

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Structural elements made of seam-welded hollow sections are considerably less expensive than their seamless equivalents. This is a strong incentive for their use, but the current steel design standards still contain recommendations for seam-welded hollow sections based on test results performed with sections produced using outdated steel grades and fabrication processes. These design procedures are even more conservative when applied to composite tubular seam-welded elements. This paper presents an experimental campaign performed to investigate the structural behaviour of steel-and concrete-filled composite columns made with seam-welded rectangular hollow profiles. The experiments involved columns with only steel sections, concrete-filled and concrete-filled plus additional reinforcing bars. The main aim of the tests was to identify the contribution of each component in the overall structural response. The results enable an evaluation of the design recommendations present in Eurocode 4 aiming to determine less conservative buckling curves to be used for the investigated composite columns made of seam-welded rectangular hollow sections.

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“…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. Many researchers found that the CFST column system has numerous advantages compared with the ordinary steel or the reinforced concrete system due to its high-strength, stiffness, ductility, and better seismic performance [7][8][9]. Since the outside steel confines the concrete and the inside concrete prevents the steel from local buckling.…”

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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Developments and advanced applications of concrete-filled steel tubular (CFST) structures: Members

Cited by 1,289 publications

References 48 publications

Performance of Steel-Reinforced Square Concrete-Filled Steel Hollow Section (Srscfshs) Columns Under Uniaxial Compression

Performance of Steel-Reinforced Square Concrete-Filled Steel Hollow Section (Srscfshs) Columns Under Uniaxial Compression

Structural assessment of composite seam-welded rectangular hollow columns

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

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