Experimental Research on Static Behavior of Stiffened T-Shaped Concrete-Filled Steel Tubular Stubs Subjected to Concentric Axial Loading

Xu, Chuangze; Yang, Haitian; Tang, Xin; Liu, Jiepeng

doi:10.1007/s13296-018-0145-4

Cited by 16 publications

(7 citation statements)

References 10 publications

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“…19 Therefore, enhancement of the restraining effect of the steel tube on the core concrete is key to improving the performance of L-shaped CFSTs, and a number of stiffening measures have been proposed. Previous studies have demonstrated that the addition of angle steels 15,20,21 and longitudinal stiffening ribs 22 to L-shaped CFST columns has the advantage of delaying local buckling and increasing the confinement effect, which can enhance the ultimate strength and ductility. Cai [23][24][25] found similar advantages in adding binding bars, which can constrain the transverse deformation of the concrete core.…”

Section: Introductionmentioning

confidence: 99%

Study on the mechanical behavior of L‐shaped concrete‐filled steel tubular columns under axial compression

Huang

Wang

Zhang

et al. 2022

Structural Concrete

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Section: Introductionmentioning

confidence: 99%

Study on the mechanical behavior of L‐shaped concrete‐filled steel tubular columns under axial compression

Huang

Wang

Zhang

et al. 2022

Structural Concrete

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“…Pulled binding bars were adopted at possible plastic hinge locations in the specialshaped CFST columns subjected to concentric and eccentric loads to study their static behavior [24,25]. Tensile bars were proposed in the T-shaped CFST columns to postpone local buckling of the tube and increase constraint effect for concrete [26,27]. e above experimental results showed that, due to the increase in constraint effect for concrete provided by stiffened steel tubes, special-shaped CFST columns behave advantages on the strength, ductility, and seismic behavior over special-shaped RC columns [28,29].…”

Section: Introductionmentioning

confidence: 99%

Research on Carrying Capacity of T‐Shaped Stiffened Concrete‐Filled Steel Tubular Columns Subjected to Eccentrically Compressive Load

Yang

Han

Nan

et al. 2021

Advances in Civil Engineering

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In this paper, in order to further study the mechanical behavior of T-shaped stiffened concrete-filled steel tubular (CFST) columns, numerical programs of eccentrically compressive T-shaped stiffened CFST columns were developed to calculate moment M-ϕ curvature curves of cross section and column. The calculated curves with the numerical programs agree well with the experimental results. A parametric analysis was carried out to calculate M-N correlation curves of cross section and column to investigate influence of concrete strength fck, steel yielding strength fy, steel tube thickness t, slenderness ratio λ, and loading angle θ. On the basis of parametric analysis, simplified resistance models of T-shaped CFST section and column were proposed and verified by the numerical analysis results. The simplified resistance models are reliable to predict the mechanical behavior for engineering application.

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“…It was shown that the tie bars could delay the local buckling and improve the restraining effect of the core concrete. Yang et al (2010Yang et al ( , 2015, Liu et al (Liu, Song, et al, 2019;Liu, Yang, et al, 2018), Liu et al (Liu, Xu, et al, 2018), and Xu et al (2019) conducted compression tests on T-shaped columns and studied the various factors affecting the performance of special-shaped columns are studied. Xiong et al (2017), Zhou et al (2016Zhou et al ( , 2019, Liu et al (Liu, Zhou, et al, 2019), Zhang et al (2018), and Xu et al (Xu, Zhou, et al, 2016) Scholars have conducted a series of researches on the mechanical behavior of steel-reinforced-concrete specialshaped columns.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on Combined Column of Steel Pipe

et al. 2021

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To study the properties of various steel-pipe combined columns, ten steel pipe combined columns were designed, including five axial compression specimens and five eccentric compression specimens. The test mainly investigated the influence of the combination of a flange steel pipe and web steel pipe on the combined column, including the overall failure mode, local failure mode, load-displacement curve, bearing capacity, and stability of the flange steel pipe and web steel pipes. The test results showed that the overall and local failure modes of the axial compression specimens with different steel pipe combinations were different. The failure modes of the eccentric compression specimens with different steel pipe combinations were almost identical. Except for the eccentric compression specimen PZH2, none of the other eccentric compression specimens exhibited local buckling. The combination of the flange steel pipes and web steel pipes near the flange steel pipes had an obviously effect on the bearing capacity, while the combination of steel pipes in the middle of the web had a lower effect on the bearing capacity. During the loading process, the flange and web steel pipe did not lose stability, and the weld between the steel pipes of the axial compression specimen and the eccentric compression specimen was not damaged. There was no obvious separation between the unwelded parts of the steel pipes.

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Experimental Research on Static Behavior of Stiffened T-Shaped Concrete-Filled Steel Tubular Stubs Subjected to Concentric Axial Loading

Cited by 16 publications

References 10 publications

Study on the mechanical behavior of L‐shaped concrete‐filled steel tubular columns under axial compression

Study on the mechanical behavior of L‐shaped concrete‐filled steel tubular columns under axial compression

Research on Carrying Capacity of T‐Shaped Stiffened Concrete‐Filled Steel Tubular Columns Subjected to Eccentrically Compressive Load

Experimental Study on Combined Column of Steel Pipe

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