Evaluation of structural performance between active and passive preloading systems in circular concrete-filled steel tubes (CFST)

Albareda-Valls, Albert; Carreras, Jordi Maristany

doi:10.1016/j.engstruct.2019.05.037

Cited by 12 publications

(20 citation statements)

References 14 publications

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“…Thus, 5 mm element size was adopted for the concrete and the hollow tubes by using the structured meshing approach. The thickness of outer and inner hollow sections was discretised at least into three elements to obtain the nonlinear behaviour of the thin-walled sections [41].…”

Section: Fe Modellingmentioning

confidence: 99%

Flexural buckling behaviour of concrete-filled double skin aluminium alloy columns

Ali

Kamaris

Gkantou

2023

Engineering Structures

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Section: Fe Modellingmentioning

confidence: 99%

Flexural buckling behaviour of concrete-filled double skin aluminium alloy columns

Ali

Kamaris

Gkantou

2023

Engineering Structures

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“…Concrete-filled steel tube (CFST) is composed of steel tube and core concrete working together [ 1 , 2 ]. It has the characteristics of high bearing capacity, large lateral rigidity, good ductility and high construction efficiency [ 3 , 4 , 5 , 6 , 7 , 8 ].…”

Section: Introductionmentioning

confidence: 99%

Interface Bonding Behavior of Concrete-Filled Steel Tube Blended with Circulating Fluidized Bed Bottom Ash

Liu

Cheng

et al. 2021

Materials

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The interface bonding behavior between the steel tube and the concrete of concrete-filled steel tube (CFST) blended with circulating fluidized bed bottom ash (CFB-BA) was investigated in this study. A total of 8 groups of CFSTs stub columns were prepared with different dosage of CFB-BA, water-binder ratio (W/B), and interface bonding length. A series of push-out tests were carried out to acquire the data representing the interface bonding behavior. The results show that the dosage of CFB-BA has a direct effect on interface bonding behavior of CFST. CFB-BA can improve the interface bonding behavior of CFST. The highest ultimate bonding load and strength are achieved when the dosage of CFB-BA is 30%. When the dosage of CFB-BA increases to 50%, its interface bonding behavior decreases, but is still better than that of CFST without CFB-BA. W/B has a negative correlation with the interface bonding behavior of CFST. While the W/B increases, the interface bonding load and strength of CFST decreases. The increase of the interface bonding length can improve the interface bonding load, but cannot improve the interface bonding strength.

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“…The concrete-filled steel tube (CFT) structure is one of the types of structures which is comprised of core concrete and steel tube. Due to the special construction technology, the constraint effect of core concrete by steel tube and the cooperative work between the core concrete and steel tube will be achieved [1,2]. Therefore, this structure has plenty of virtues in terms of greater carrying capacity, higher lateral stiffness, better ductility properties, much more efficient construction and easier fabricated construction [3][4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Research on the Bond Behavior of Preplaced Aggregate Concrete-Filled Steel Tube Columns

Zhou

et al. 2020

Materials

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In order to investigate the bond behavior of preplaced aggregate concrete-filled steel tube (CFT-PAC) columns and the difference of bond behavior between CFT-PAC columns and normal concrete-filled steel tube (CFT-NC) columns, a total of 11 columns were prepared and the push-out tests were conducted. The experimental parameters included the type of concrete (preplaced aggregate concrete and normal concrete), concrete strength (C40, C50 and C60), cross-section dimension (D = 219 mm, 299 mm and 351 mm) and the thickness of steel tube (t = 6 mm and 8 mm). The results indicated that the CTF-PAC columns had a similar load-slip curves with CFT-NC columns. The bond stresses of the CFT-PAC columns were higher than that of the PAC-NC columns at the same concrete strength. Increasing compressive strength of PAC increased the critical bond strength and bond strength of CFT-PAC columns. With an increase of the L/D ratio, both of the slip corresponding to peak load and bond strength of CFT-PAC columns exhibited an increasing trend. A rise in the D/t ratio led to a decrease in the bond stress of CFT-PAC columns and an increase in slip corresponding to the peak load of CFT-PAC columns. The proposed bond stress–slip relationship model considerably matched the bond stress–slip relationship of CFT-PAC columns.

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Evaluation of structural performance between active and passive preloading systems in circular concrete-filled steel tubes (CFST)

Cited by 12 publications

References 14 publications

Flexural buckling behaviour of concrete-filled double skin aluminium alloy columns

Flexural buckling behaviour of concrete-filled double skin aluminium alloy columns

Interface Bonding Behavior of Concrete-Filled Steel Tube Blended with Circulating Fluidized Bed Bottom Ash

Research on the Bond Behavior of Preplaced Aggregate Concrete-Filled Steel Tube Columns

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