Experimental Study on Compressive Bearing Capacity of High Strength Concrete-Filled Steel Tube Composite Columns

Kang, Hong Zhen; Yao, Lei; Song, Xi Min; Ye, Ying Hua

doi:10.4028/www.scientific.net/amr.368-373.410

Cited by 3 publications

(3 citation statements)

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“…Kang et al [22] and Cai et al [23] considered the strength of concrete, stirrup ratio, longitudinal reinforcement ratio, cross-section shape and steel ratio, and carried out axial compression tests of concrete-encased CFST composite columns. It is found that the steel ratio, the strength of concrete and the stirrup ratio are the main factors affecting the axial compression performance of concreteencased CFST composite column, and the bearing capacity of composite column increases with the increase of steel ratio.…”

Section: Axial Compression Performancementioning

confidence: 99%

Research Progress of Steel-RAC Composite Structures

Xie

2024

IJMSTS

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As a new sustainable development technology, recycled aggregate concrete (RAC) has a profound impact on the green development of construction engineering. However, due to the defects of RAC itself, it is hindered in engineering application. The steel-RAC composite structure can effectively enhance the mechanical properties of RAC and promote the application of RAC in practical engineering. Based on the recent research status of steel-RAC composite structures, including recycled aggregate concrete filled steel tube (RACFST) columns and recycled aggregate concrete -encased recycled aggregate concrete filled steel tube (RAC-encased RACFST) composite columns the axial compression, the compression performance, seismic performance and fire resistance of composite columns are reviewed in this paper, and the future research direction is proposed.

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Section: Axial Compression Performancementioning

confidence: 99%

Research Progress of Steel-RAC Composite Structures

Xie

2024

IJMSTS

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“…This includes investigations into axial compression performance, seismic behavior, and bending performance. Kang et al [19] and Nie et al [20] studied the axial compression performance of the CFCST columns experimentally. Qian et al [21] and Ji et al [22] studied the seismic performance of the CFCST columns.…”

Section: Introductionmentioning

confidence: 99%

Eccentric Compression Performance of Core-Steel Tube with T-Shaped Steel Reinforced Concrete Column

Gao,

Wang,

You

2024

Advances in Civil Engineering

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This paper introduces a novel steel–concrete composite column referred to as the core-steel tube with T-shaped steel reinforced concrete (CSTRC) column, which is composed of a core steel tube with T-shaped steel embedded in a reinforced concrete column. To investigate the mechanical performance of the CSTRC column under eccentric compressive load, the load–deformation response, stress, and strain distribution of CSTRC columns under eccentric load are analyzed by finite element software. Furthermore, the effects of slenderness ratio, concrete and steel strength on the eccentric compression performance of CSTRC columns are also discussed. Finally, a set of formulas for predicting the ultimate strength of the CSTRC columns is proposed. The study results reveal that: (1) The established finite element model accurately predicts bearing capacity and strain development. (2) When the eccentricity is 0.2, the specimen exhibits characteristics indicative of small eccentricity failure. Conversely, when the eccentricity is 0.8, the specimen demonstrates traits associated with large eccentricity failure. Furthermore, as the eccentricity increases, there is a notable decrease in the bearing capacity of the specimen. (3) The slenderness ratio affects the failure mode of the CSTRC columns, with consideration for second-order effects necessary when the ratio exceeds 22. (4) Increasing the concrete strength, steel strength, and steel ratio significantly enhances the ultimate load values of the CSTRC columns. (5) A comparison between calculated and simulated values demonstrates good agreement, validating the accuracy of the proposed method.

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“…In 2011, Kang, in order to study the axial compressive strength of CFST, made a series of tests for composite columns. And what the results showing is that the axial compressive ability is mainly associated with the factors including the limit index, the cubic strength and the stirrup characteristic value, etc [8]. In the same year, Cai published the latest development of high strength concrete filled steel tube structure technology in our country in Russian journals [9].…”

Section: Introductionmentioning

confidence: 99%

Finite Element Simulation on Behavior of the High-Strength Concrete Filled High-Strength Square Steel Tube Middle-Long Columns under Axial Compressive Load

Zhu

Liu

2014

AMM

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In this paper, using ABAQUS, 16 high-strength concrete filled high-strength square steel tube middle-long columns’ axial compression process were simulated. The load-deflection relationships were obtained and the new combination in improving the bearing capacity and plastic deformation has a great advantage. Realization of length variation slenderness ratio by changing the length of column, this paper also study the influence of slenderness ratio, the main parameters of the high-strength concrete filled high-strength square steel tube middle-long column. It is found that both bearing capacity and the plastic capacity are associated with slenderness ratio.

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Experimental Study on Compressive Bearing Capacity of High Strength Concrete-Filled Steel Tube Composite Columns

Cited by 3 publications

References 0 publications

Research Progress of Steel-RAC Composite Structures

Research Progress of Steel-RAC Composite Structures

Eccentric Compression Performance of Core-Steel Tube with T-Shaped Steel Reinforced Concrete Column

Finite Element Simulation on Behavior of the High-Strength Concrete Filled High-Strength Square Steel Tube Middle-Long Columns under Axial Compressive Load

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