Numerical study of concrete-filled steel composite (CFSC) stub columns with steel stiffeners

Bahrami, Alireza; Badaruzzaman, Wan Hamidon Wan; Osman, Siti Aminah

doi:10.1590/s1679-78252014000400008

Cited by 10 publications

(5 citation statements)

References 23 publications

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“…An examination was conducted to analyze the performance of GFRP-RC columns. The GFRP column's response was discovered to closely resemble that of a conventional RC column with 1% reinforcement ratio of the cross-section, as evidenced by previous studies 29 – 34 . The load-carrying capacity of a GFRP-RC column for axial loads, subjected to the eccentric loading having different reinforcement ratios, was considerably affected and reduced in comparison to the concrete column made of steel reinforcement.…”

Section: Introductionsupporting

confidence: 65%

Effects of eccentric loading on performance of concrete columns reinforced with glass fiber-reinforced polymer bars

Shakouri Mahmoudabadi,

Bahrami,

Saghir

et al. 2024

Sci Rep

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Glass fiber-reinforced polymer (GFRP) reinforcements are superior to traditional steel bars in concrete structures, particularly in vertical elements like columns, and offer significant advantages over conventional steel bars when subjected to axial and eccentric loadings. However, there is limited experimental and numerical research on the behavior of GFRP-reinforced concrete (RC) columns under eccentric loading having different spacing of stirrups. In this study, six specimens were cast under three different values of eccentricities (25 mm, 50 mm, and 75 mm) with two groups of stirrups spacing (50 mm and 100 mm). The experimental results showed that by increasing the eccentricity value, there was a reduction in the load-carrying capacity of the specimens. The finite element ABAQUS software was used for the numerical investigation of this study. The results from the finite element analysis (FEA) were close to the experimental results and within the acceptable range. The maximum difference between the experimental and FEA results was 3.61% for the axial load and 12.06% for the deformation.

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Section: Introductionsupporting

confidence: 65%

Effects of eccentric loading on performance of concrete columns reinforced with glass fiber-reinforced polymer bars

Shakouri Mahmoudabadi,

Bahrami,

Saghir

et al. 2024

Sci Rep

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“…Material modelling of steel and concrete is a fundamental part of numerical modelling [14,15,16]. A three dimensional continuum, plasticity based damage model was used for modelling the constitutive behaviour of the concrete.…”

Section: B Materials Modellingmentioning

confidence: 99%

“…The displacement method has been used for loading [14,15,16]. In accordance with the loading code [19], the amount of displacement was applied to the wall.…”

Section: Verification Of Modellingmentioning

confidence: 99%

Hysteretic Assessment of Steel-Concrete Composite Shear Walls

Bahrami¹,

Yavari²

2019

IJRTE

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This paper focuses on the hysteretic assessment of steel-concrete composite shear walls with reinforced concrete on one side of the steel plate. Finite element software ABAQUS is utilised to conduct this research. An experimental test on a composite shear wall is simulated to do the verification of the modelling. Then, modelling result is compared with the experimental test result which shows an insignificant difference between them and therefore uncovers the accuracy of the modelling. Thereafter, different parameters are considered to investigate their effects on the response of the walls. Thickness of reinforced concrete, steel plate thickness, and number of shear studs are studied as parameters. It is concluded that changing reinforced concrete thickness and number of shear studs do not considerably affect the ultimate load capacity, ductility, and energy dissipation of the walls. However, increasing the steel plate thickness enhances the ultimate load capacity, ductility, and energy dissipation. In addition, out-of-plane displacement of the walls is evaluated.

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“…Concrete confinement creates a triaxial stress, which increases concrete strength and ductility (Bahrami et al 2013;Han et al 2005;Bahrami et al 2014). In recent years, the use of steel tube-…”

Section: Three-dimensional Finite Element Analysis Of Compressive Behmentioning

confidence: 99%

Three-Dimensional Finite Element Analysis of Compressive Behavior of Circular Steel Tube-Confined Concrete Stub Columns by New Confinement Relationships

Haghinejada

Nematzadeh

2016

Lat. Am. j. solids struct.

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This paper presents a nonlinear analysis of axially loaded steel tube-confined concrete (STCC) stub columns with new confinement relationships. For this aim, a 3-D finite element model of STCC columns using ABAQUS program is developed and validated against the experimental data. Proper material constitutive models are proposed and the confinement parameters of confined concrete are determined by matching the numerical results via trial and error. The parameters considered for quantitative verification of the FE model include five different factors indicating the behavior of STCC columns: compressive strength corresponding to steel yielding point, initial peak strength and ultimate strength as well as longitudinal to circumferential stress ratio of steel tube at steel yielding point and initial peak point. For the qualitative verification, the axial and lateral stress-strain relationships of STCC columns are taken into account. The comparison results indicate that the model can accurately predict the compressive behavior of STCC stub columns. Finally, a parametric study is also performed to evaluate the effect of tube diameter-to-wall thickness ratio (D/t), concrete compressive strength (fc) and steel yield strength (fy) on the compressive behavior of STCC columns. According to the results of the parametric study, the interface shear stress and lateral confining pressure are not affected by fc while significantly increase with decreasing D/t.

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Numerical study of concrete-filled steel composite (CFSC) stub columns with steel stiffeners

Cited by 10 publications

References 23 publications

Effects of eccentric loading on performance of concrete columns reinforced with glass fiber-reinforced polymer bars

Effects of eccentric loading on performance of concrete columns reinforced with glass fiber-reinforced polymer bars

Hysteretic Assessment of Steel-Concrete Composite Shear Walls

Three-Dimensional Finite Element Analysis of Compressive Behavior of Circular Steel Tube-Confined Concrete Stub Columns by New Confinement Relationships

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