The axial compressive behavior of stone-lightweight aggregate concrete-filled steel tubular stub columns

Zhang, Xianggang; Zhang, Songpeng; Fan, Yongzhe; Ding, Yao; Wang, Xingguo; Meng, Ercong

doi:10.1016/j.conbuildmat.2021.123815

Cited by 18 publications

(1 citation statement)

References 33 publications

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“…Fu, Z.Q. et al [28,29] studied the strength characteristics of LAC constrained by steel tubes, and the results showed that the constraining effect of steel tubes on LAC was enhanced with the increase of steel area ratio. The confining pressure effect coefficient of LAC can be set to 3.4, which reflects the improvement of its stress performance under compression in the stroke direction.…”

Section: Introductionmentioning

confidence: 99%

Failure Criteria and Constitutive Relationship of Lightweight Aggregate Concrete under Triaxial Compression

Chen

et al. 2022

Materials

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This paper investigates the compression behavior and failure criteria of lightweight aggregate concrete (LAC) under triaxial loading. A total of 156 specimens were tested for three parameters: concrete strength, lateral confining pressure and aggregate immersion time, and their effects on the failure mode of LAC and the triaxial stress-strain relationship of LAC is studied. The research indicated that, as the lateral constraint of the specimen increases, the failure patterns change from vertical splitting failure to oblique shearing failure and then to indistinct traces of damage. The stress-strain curve of LAC specimens has an obvious stress plateau, and the curve no longer appears downward when the confining pressure exceeds 12 MPa. According to the experimental phenomenon and test data, the failure criterion was examined on the Mohr–Coulomb theory, octahedral shear stress theory and Rendulic plane stress theory, which well reflects the behavior of LAC under triaxial compression. For the convenience of analysis and application, the stress-strain constitutive models of LAC under triaxial compression are recommended, and these models correlate well with the test results.

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Section: Introductionmentioning

confidence: 99%

Failure Criteria and Constitutive Relationship of Lightweight Aggregate Concrete under Triaxial Compression

Chen

et al. 2022

Materials

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A review on the performance of concrete filled tubular columns under axial compression: Emphasis on geometrical parameters and various concrete infills and encasings

Rohilla,

Gupta

2023

Structural Design Tall Build

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SummaryThis paper summarizes the literature available on the behavior of concrete‐filled steel tubular (CFST) columns to evaluate the effect of geometrical properties such as shape of cross‐section, diameter‐to‐thickness ratio, and length‐to‐diameter ratio of CFST columns under axial loading. Then, the impact of different material composition for core concrete and encasing material is concluded for columns under axial loading. The performance of CFST is evaluated in terms of failure modes, ductility, stiffness, and axial compressive strength. For encasing tube, carbon steel, stainless steel, and aluminum are studied while for core, various concretes such as Normal (NSC) and high strength concrete (HSC), light weight concrete (LWC), recycled aggregate concrete (RAC), expansive concrete (EC), rubber crumb concrete(RuCC), and steel slag concrete (SSC) are covered for review in this paper. Material limitations as provided by various codes for design of composite structures is also mentioned for both tube and core concrete. Failure modes of concrete‐filled tubular(CFT) columns are most affected by geometric properties columns while materials used for concrete and encasing tube do not cause much difference. Though, ductility, axial compressive strength, and stiffness are affected by both geometric and material properties.

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Bearing mechanism of roof and rib support structure in automatically formed roadway and its support design method

Jiang,

Wang,

Wang

et al. 2024

J. Cent. South Univ.

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The axial compressive behavior of stone-lightweight aggregate concrete-filled steel tubular stub columns

Cited by 18 publications

References 33 publications

Failure Criteria and Constitutive Relationship of Lightweight Aggregate Concrete under Triaxial Compression

Failure Criteria and Constitutive Relationship of Lightweight Aggregate Concrete under Triaxial Compression

A review on the performance of concrete filled tubular columns under axial compression: Emphasis on geometrical parameters and various concrete infills and encasings

Bearing mechanism of roof and rib support structure in automatically formed roadway and its support design method

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