Study of the concrete in reinforced concrete-filled steel tube column under axial loading

Xiamuxi, Alifujiang; Liu, Xiaorui; Hasegawa, Akira

doi:10.1016/j.jcsr.2020.106111

Cited by 16 publications

(2 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A surface-to-surface contact was defined between concrete (slave surface) and steel tube (master surface). Penalty contact was assumed in the normal direction of the contact to prevent penetration, and friction contact was adopted in the tangential direction with a coefficient of 0.6 [23]. The lower end of the column is restrained by pin support, and the upper end is loaded via a reference point, and the reference point and the section are coupled as shown in Figure 7.…”

Section: Modeling Processmentioning

confidence: 99%

Investigations into Structural Behavior of Concrete-Filled RHS Columns with Unequal Flange Thickness under Compressive Load

Gong-yi

et al. 2020

Materials

View full text Add to dashboard Cite

Previous studies have shown that components with an unequal-walled concrete-filled rectangular hollow section (CFRHS) can achieve a greater resistance under bending than those with equal-walled CFRHS. However, the study on the compressive behavior of the CFRHS column is limited. Therefore, this paper investigates the performance of compressed CFRHS columns with unequal flange thickness, based on experimental and numerical approaches. In the test, the effects of slenderness and eccentricity on the compressive capacity of the CFRHS columns with unequal shell thickness are discussed. Numerical models based on the finite element method are established, to evaluate the resistance and failure pattern of each specimen in the test. Parametric studies are carried out based on the validated model, to investigate the effect of eccentricity, wall thickness, and steel and concrete material properties on the load-bearing capacity of the compressed CFRHS column. In addition, the analytical expressions of the resistance of CFRHS columns with unequal wall thickness are derived, and the prediction values are validated through comparing with the test results. It is found that eccentric compressed columns with unequal-walled CFRHS have a similar load-bearing capacity and better ductility when compared with the equal-walled CFRHS.

show abstract

Section: Modeling Processmentioning

confidence: 99%

Investigations into Structural Behavior of Concrete-Filled RHS Columns with Unequal Flange Thickness under Compressive Load

Gong-yi

et al. 2020

Materials

View full text Add to dashboard Cite

show abstract

“…Moreover, the elimination of formwork support during concrete pouring reduces construction time and expenses. These advantages have led to the widespread adoption of steel-concrete structures in civil engineering [ [6] , [7] , [8] , [9] ]. Scholars have also introduced special-shaped columns made of steel tubes filled with concrete, aiming to further enhance the application of CFST columns in building structures.…”

Section: Introductionmentioning

confidence: 99%

Finite element analysis and bearing capacity calculation of cross-shaped CFST columns under compressive load

Yang,

Yu,

Qiu

et al. 2024

Heliyon

View full text Add to dashboard Cite

Behavior of steel‐fiber‐reinforced concrete‐filled square steel tube stub columns under eccentric compression

Huang

Liu

et al. 2021

Structural Design Tall Build

View full text Add to dashboard Cite

Concrete-filled square steel tube (CFSST) stub columns are vital to structural engineering owing to their excellent mechanical properties and architectural benefits.In this study, 42 steel-fiber-reinforced CFSST stub columns with different variables are designed to investigate their eccentric compression performance. The variables include the eccentricity ratio (0.08, 0.20, and 0.32), steel fiber volume content (0.0%, 0.6%, 1.2%, and 1.8%), concrete strength (40, 50, and 60 MPa), and square steel tube thickness (3, 3.75, and 4.5 mm). The failure mode, load-lateral deformation characteristics, load-bending moment interaction relationship, and relative load-strain response are investigated experimentally. It is discovered that the use of steel fibers can increase the bearing capacity and improve the ductility of CFSST stub columns. The ABAQUS software is applied to establish and calculate finite element models, and the results of which are consistent with the experimental results.Moreover, a simplified formula to calculate the eccentric ultimate bearing capacity of CFSST stub columns is derived. Under a certain safety margin, the predicted results agree well with the experimental results.

show abstract

Study of the concrete in reinforced concrete-filled steel tube column under axial loading

Cited by 16 publications

References 32 publications

Investigations into Structural Behavior of Concrete-Filled RHS Columns with Unequal Flange Thickness under Compressive Load

Investigations into Structural Behavior of Concrete-Filled RHS Columns with Unequal Flange Thickness under Compressive Load

Finite element analysis and bearing capacity calculation of cross-shaped CFST columns under compressive load

Behavior of steel‐fiber‐reinforced concrete‐filled square steel tube stub columns under eccentric compression

Contact Info

Product

Resources

About