Experimental Research on the Bond-Slip Behavior of Red Mud Concrete Filled Square Steel Tubes

Wu, Bin; Tan, Zheng; Zhang, Yongdan; Zhao, Ziyan; Liu, Chengxue

doi:10.1088/1757-899x/394/3/032016

Cited by 4 publications

(8 citation statements)

References 1 publication

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“…Shakir-Khalil [14] depicted that the effect of concrete strength on the bond strength of concrete-filled steel tubular interfaces has no regularity. e bond strength increased as the concrete strength increased [15][16][17][18][19][20][21][22][23]. Zhang [24] displayed that the interfacial bond strength decreases to a certain extent with increasing concrete strength.…”

Section: Concrete Strengthmentioning

confidence: 99%

“…e wall thickness of the steel tube will affect its ability to bind the core concrete, thus affecting the interfacial bond strength between the steel tube and concrete. Some studies [17,21,24,25,[27][28][29][30][31] have shown that bond strength decreases with increasing diameter-to-thickness ratio or width-to-thickness ratio of steel tubes.…”

Section: Diameter-to-ickness Ratio (D/t) or Width-to-ickness Ratio (B/t) Of The Steel Tubementioning

confidence: 99%

“…Research results have not been uniform. Some studies [9,21,28] have indicated that the bond strength increases with the slenderness ratio, whereas other studies [14,[31][32][33] have shown that the slenderness ratio of steel tubes has no obvious effect on the bond strength. Some studies [17,34,35] have shown that the bond strength of specimens decreases with an increasing slenderness ratio.…”

Section: Length-to-diameter Ratio (L/d) Ormentioning

confidence: 99%

“…Research on the interface adhesion properties between selfcompacting desulfurized slag and concrete-filled steel tubes has shown that the limiting bond strength increases with increasing desulfurization slag content [51]. Experimental research on the bond-slip behavior of red mud concretefilled square steel tubes showed that the bond strength first increases and then decreases with the increase in the red mud substitution rate [52]. Increasing the steel fiber content is an effective measure to improve the bond strength of the CFST interface [53,54].…”

Section: Concrete Typementioning

confidence: 99%

See 3 more Smart Citations

Interfacial Bond Performance of Concrete‐Filled Steel Tubes under Fire and Postfire Conditions: State‐of‐the‐Art Review

Xue

Chen

Cai

et al. 2021

Advances in Civil Engineering

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The critical influencing factors of the interface bonding properties of concrete-filled steel tubes (CFSTs) under fire and postfire conditions are analyzed. This paper analyzes and summarizes the existing research related to the bonding performance of CFST interfaces under fire and postfire conditions at home and abroad, which includes the bonding mechanism of CFST structures, the bonding strength of CFSTs during and after fire exposure, and the main factors influencing bond strength. The analysis results indicate that the temperature has noticeable influences on the bond strength of a CFST during and after fire exposure. The bond strengths of the specimens are reduced more severely under high-temperature conditions than after high-temperature cooling. Shear connectors can significantly improve the bonding performance of CFSTs and effectively reduce the relative slip between steel tubes and concrete. The paper concludes with an analysis of the deficiencies in bond-slip research on the bonding properties of the CFST interface during and after fire exposure and future research directions. First, we can study the use of new technologies and materials to solve the problem of bonding and slipping of CFSTs during and after fire exposure. Second, we can perform extensive experimental research and theoretical simulation analysis to enrich the research in this field, which can provide a reference for engineering practice.

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Section: Concrete Strengthmentioning

confidence: 99%

Section: Diameter-to-ickness Ratio (D/t) or Width-to-ickness Ratio (B/t) Of The Steel Tubementioning

confidence: 99%

Section: Length-to-diameter Ratio (L/d) Ormentioning

confidence: 99%

Section: Concrete Typementioning

confidence: 99%

See 2 more Smart Citations

Interfacial Bond Performance of Concrete‐Filled Steel Tubes under Fire and Postfire Conditions: State‐of‐the‐Art Review

Xue

Chen

Cai

et al. 2021

Advances in Civil Engineering

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“…It was found that the compressive strength, the splitting tensile strength, and the elastic modulus of the specimens were increased, respectively. Wu et al [20] put forward the concept of the CCFST mixed with red mud first and conducted experimental research on pushing core concrete out of steel tube. e research result indicated that the bond slip behavior of the CCFST mixed with red mud was improved; it was proved that the cement of core concrete could be partly replaced by the red mud.…”

Section: Introductionmentioning

confidence: 99%

Influence of Red Mud Proportion on Circular Concrete‐Filled Steel Tubular Short Columns

Tan

Fan³

et al. 2020

Advances in Materials Science and Engineering

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Tests on twelve circular concrete-filled steel tube stub columns with mixed red mud and three circular concrete-filled steel tube stub columns to investigate the influence of the mixed proportion of red mud on the mechanical behavior of axial compressive circular concrete-filled steel tube stub columns are reported. It is found that with the increase of red mud content, the ultimate load increases first and then decreases; on the contrary, the ultimate displacement decreases first and then increases; the specimen stress reaches the proportion limitation as the steel tube longitudinal strain is around 160 με and reaches the yield limitation as the steel tubes’ longitudinal strain is around 4400∼5000 με. The axial compressive bearing capacity empirical formulation of concrete-filled steel tubes stub columns mixed with red mud is proposed. The theoretical calculation results agree well with those experimental data.

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Experimental study on bond‐slip constitutive relation of SSSCFST columns

Fang

Niu

et al. 2021

Structural Concrete

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This paper presents the bond-slip tests of six self-stressing steel slag concrete filled steel tubular (SSSCFST) columns. The effects of the self-stressing (expansion ratio) of steel slag concrete (SSC), diameter-thickness ratio and confinement factor on bond-slip behaviors are analyzed, and the bond-slip mechanism of the SSSCFST columns is revealed. According to the static equilibrium condition, an analytical model for predicting the ultimate inter-facial bond strength is put forward considering the influence of self-stressing between steel tube and SSC, and a simplified formula for conveniently evaluating the bond load of the SSSCFST columns is suggested based on the regression analysis of test data. In addition, a bond-slip constitutive model of SSSCFST columns is established, and the distribution law of the longitudinal compressive stress, inter-facial bond stress, and relative slip are obtained.Three formulas for estimating the bond slip stiffness, the slip value corresponding to the ultimate bond strength, and the bond stress of load invariant stage are proposed respectively depending on the regression analysis of test data. Eventually, a simplified three-stage bond-slip constitutive relation of SSSCFST columns is suggested.

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Experimental Research on the Bond-Slip Behavior of Red Mud Concrete Filled Square Steel Tubes

Cited by 4 publications

References 1 publication

Interfacial Bond Performance of Concrete‐Filled Steel Tubes under Fire and Postfire Conditions: State‐of‐the‐Art Review

Interfacial Bond Performance of Concrete‐Filled Steel Tubes under Fire and Postfire Conditions: State‐of‐the‐Art Review

Influence of Red Mud Proportion on Circular Concrete‐Filled Steel Tubular Short Columns

Experimental study on bond‐slip constitutive relation of SSSCFST columns

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