Behaviour and design of high-strength concrete-filled rectangular ferritic stainless steel tubular (CFFSST) short columns subjected to axial compression

Yan, Xi‐Feng; Hassanein, M.; Wang, Fangying; He, Mengnan

doi:10.1016/j.engstruct.2021.112611

Cited by 21 publications

(3 citation statements)

References 56 publications

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“…A simplified design equation similar to the ones suggested by the researchers earlier such as [10,[38][39][40] is suggested to predict the ultimate compressive load of CFSST columns defined as…”

Section: Proposed Design Modelmentioning

confidence: 99%

“…A large discrepancy between the test and numerical predictions can be observed during the validation. Yan et al [10] developed FE models for rectangular CFSST columns composed of ferritic grades under axial compression and validated against the test results reported by Li [7]. The only FE model that was developed by Ellobody and Young [11] considered the concrete confinement for the core concrete in CFSST columns composed of the rectangular section based on the lateral pressure formula originally developed for the carbon steel CFST columns by Hu et al [12].…”

Section: Introductionmentioning

confidence: 99%

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Computational analysis of axially loaded thin-walled rectangular concrete-filled stainless steel tubular short columns incorporating local buckling effects

Ahmed

Tran

et al. 2021

Structures

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Section: Proposed Design Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Computational analysis of axially loaded thin-walled rectangular concrete-filled stainless steel tubular short columns incorporating local buckling effects

Ahmed

Tran

et al. 2021

Structures

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“…Concrete‐filled steel tubular (CFST) columns are widely utilized in various modern building structures, especially in high‐rise buildings, owing to their excellent structural performance, which includes large energy‐absorption capacity, high ductility and stiffness 1–4 . As a member of the CFST column family, recently, an innovative composite column referred to as concrete‐filled double‐skin steel tubular (CFDST) columns with concrete infilled between the two centric tubes has captured the interests of researchers 5–9 .…”

Section: Introductionmentioning

confidence: 99%

Performance analysis and design of circular high‐strength concrete‐filled double‐skin aluminum tubular short columns under axial loading

Yan

Ahmed

Hassanein

et al. 2023

Structural Concrete

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This study investigates the performance and design of high‐strength circular concrete‐filled double‐skin aluminum tubular (CFDAT) columns under axial loading. A new fiber element (FBE) model incorporating a new lateral confinement model is developed that considers the confinement effects and material nonlinearities. A new strength degradation factor is proposed for determining the postpeak behavior of the confined concrete in CFDAT circular columns. Existing experimental results are used to validate the accuracy of the predicted ultimate strength and axial load‐strain () curves of CFDAT columns under axial loading. A comparison of the predictions of the ultimate strength and curves of CFDAT columns using the proposed lateral confinement model is made against the prediction using the three‐dimensional finite element modeling and the existing lateral pressure model of CFDAT columns proposed by other researchers. The performance of the CFDAT columns under axial loading is investigated using a detailed parametric study. The accuracy of existing empirical formulas given in various design standards for conventional concrete‐filled steel tubular columns as well as given by another researcher in predicting the ultimate strength of CFDAT columns is examined. Finally, a simple design formula is proposed and validated against the experimental and numerical results obtained from this study. It is found that the proposed FBE model and the simplified model developed in this study can accurately predict the performance of CFDAT columns under axial loading.

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Size effect of circular concrete‐filled stainless steel tubular short columns under axial compression

Liu

Wang

Yuan

2022

Structural Design Tall Build

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Summary Concrete‐filled stainless steel tube (CFSST) members combine the advantages of stainless steel materials and concrete‐filled steel tube (CFST) members. Therefore, it has a broad range of applications than CFST members in the marine environment and other scenarios requiring great durability and corrosion resistance. However, there are limited researches on the large‐sized CFSST members. In this paper, 30 circular CFSST members with varying steel ratios (3.7% ≤ α ≤ 10.3%), diameters (500 mm ≤ D ≤ 900 mm), and strength of concrete ( fcu = 40 MPa, 50 MPa) are studied on the size effect under axial compression. For peak axial stress, peak axial strain, and composite elastic modulus, size effects are investigated. According to the results, the peak axial stress and peak axial strain of the members increase with the increase in diameter. The modulus of composite elasticity essentially stays constant as the diameter increases, showing that there is no obvious size effect on the composite elastic modulus. The size effect of peak axial stress and peak axial strain is influenced by the steel ratio. Increasing the steel ratio tended to decrease the size effect. According to the generated data, it was found that the current codes of Chinese and European underestimate the ultimate bearing capacity of CFSST short columns significantly. To this end, the resistances of the large‐sized austenitic CFSST columns with a low steel ratio are well predicted by the proposed design model after being modified, based on GB 50936‐2014 and EN 1994‐1‐1 design codes.

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Behaviour and design of high-strength concrete-filled rectangular ferritic stainless steel tubular (CFFSST) short columns subjected to axial compression

Cited by 21 publications

References 56 publications

Computational analysis of axially loaded thin-walled rectangular concrete-filled stainless steel tubular short columns incorporating local buckling effects

Computational analysis of axially loaded thin-walled rectangular concrete-filled stainless steel tubular short columns incorporating local buckling effects

Performance analysis and design of circular high‐strength concrete‐filled double‐skin aluminum tubular short columns under axial loading

Size effect of circular concrete‐filled stainless steel tubular short columns under axial compression

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