Compression-bending performance of L-shaped column composed of concrete filled square steel tubes under eccentric compression

Rong, Bin; Feng, Changxi; Zhang, Ruoyu; You, Guangchao; Liu, Rui

doi:10.1007/s13296-016-0128-2

Cited by 22 publications

(4 citation statements)

References 11 publications

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“…Chen Mengcheng et al [32] showed that, with the increase of load, the specimen surface floating rust spalling, the specimen occurred bulging cracking, and ultimately the waist drum type damage; the degree of corrosion increases, the specimen damage from the middle to the end of the expansion; steel tube corrosion mainly caused the specimen effective cross-section size reduction, so as to make the steel tube on the constraint effect of the recycled aggregate concrete is reduced, resulting in the reduction of the specimen load carrying capacity, stiffness and ductility. Huang Hong et al [33] showed that Faraday's law of electrochemical corrosion is feasible for the simulation of steel tube corrosion. The corroded specimen under the action of load, first appeared obvious weld cracking, and ultimately bulging damage pattern, and the greater the degree of corrosion, the more serious the corresponding regenerated aggregate concrete damage: under the condition of bias, with the deepening of the degree of corrosion, the specimen stiffness in the early stage, the late ductility and the ultimate load carrying capacity decreased; increase the eccentric distance, the specimen stiffness and load carrying capacity decreased, and relative compression ratio increased.…”

Section: Durable Performancementioning

confidence: 99%

A Review of Research on Recycled Aggregate Concrete Filled Steel Tube

Guo

2024

JERR

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Recycled aggregate concrete filled steel tube as a new combined structural form, can effectively improve the inherent defects of recycled aggregate concrete. Existing studies are mainly theoretical analysis, experimental research and numerical simulation to investigate the mechanical properties and deformation capacity of recycled aggregate concrete filled steel tube columns. Based on the review of the current research status of recycled aggregate concrete filled steel tube columns in recent years, the basic mechanical properties, durability, seismic performance, fire and high temperature resistance of recycled aggregate concrete filled steel tube are described, and suggestions are made for future research directions.

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Section: Durable Performancementioning

confidence: 99%

A Review of Research on Recycled Aggregate Concrete Filled Steel Tube

Guo

2024

JERR

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“…Li et al [6] conducted eccentrical compression tests of L-shaped square CFST columns and established a finite element (FE) model to study the eccentrical compression behavior of this type column and proposed a bearing capacity analysis method of the rectangular concrete-filled stainless steel tubular (CFSST) columns based on the stress yield criterion at the edge of the section base. Rong et al [7] analyzed the eccentrical compression behavior of concretefilled square steel tube columns with I-shaped CFRP through experimental research and FE simulation, and derived the calculation formula of eccentrical compression bearing capacity of composite columns. Sui et al [8] investigated the failure mode of 19 multi-element composite T-shaped CFST columns under biaxial eccentrical compression and proposed the simplified calculation formula of eccentrical compression bearing capacity.…”

Section: Introductionmentioning

confidence: 99%

Bearing Behavior of H‐Shaped Honeycombed Steel Web Composite Columns with Rectangular Concrete‐Filled Steel Tube Flanges under Eccentrical Compression Load

Jiang

et al. 2022

Advances in Civil Engineering

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In order to investigate the bearing capacity of H-shaped honeycombed steel web composite columns with rectangular concrete-filled steel tube flanges (STHCCs) subjected to eccentrical compression load, 33 full-scale STHCCs were designed with the eccentricity(e), the slenderness ratio (λ), the cubic compressive strength of concrete(fcuk), the thickness of the steel tube flange (t1), the thickness of honeycombed steel web (t2), diameter-depth ratio (d/hw), space-depth (s/hw), and the yield strength of the steel tube (fy) as the main parameters. Considering the nonlinear constitutive model of concrete and simplified constitutive model of steel, the finite element (FE) model of STHCCs was established by ABAQUS software. By comparison with the existing test results, the rationality of the constitutive model of materials and FE modeling was verified. The numerical simulation of 33 full-scale STHCCs was conducted, and the influence of different parameters on the ultimate eccentrical compression bearing capacity was discussed. The results show that the cross-sectional stress distribution basically conforms to the plane-section assumption. With the increase in e, λ, and d/hw, the ultimate eccentrical compression bearing capacity of the full-scale STHCCs decreases, whereas it gradually increases with the increase in fcuk, t1, t2, s/hw, and fy. By introducing bias-stress stability coefficient (φ), the calculation formula of full-scale STHCCs under eccentrical compression is proposed by statistical regression, which can lay a foundation for the popularization and application of these types of composite columns in practical engineering.

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“…Compared with traditional rectangle columns, the special-shaped (L, T, +) columns have advantages of refraining from the wall, increasing the interior space, and improving the flexibility in the use of architectural space, due to the limb of the special-shaped column as thick as the wall. Therefore, it is favored deeply by buyers and architects [1,2]. Figure 1 shows practical engineering projects in which special-shaped columns have been employed.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study and Damage Model on the Seismic Behavior of Reinforced Concrete L-Shaped Columns under Combined Torsion

Yang²,

Chen

2020

Applied Sciences

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Due to the advantage of saving indoor space, a special-shaped column frame attracted more attention of the engineers and researchers. This paper presented a quasi-static cyclic loading experiment of six specimens of reinforced concrete (RC) L-shaped columns under compression-flexure-shear-torsion combined loadings to investigate the effect in the ratio of torsion to moment (T/M) and axial compression ratio (n) on their seismic performance. The results showed that the failure modes of L-shaped specimens included bending failure, bending-torsion failure, and torsion-shear failure with the hysteretic curves exhibiting S shape. With the increase of T/M ratio, cracks on the flange developed more fully, and the height of plastic hinge decreased and torsion bearing capacity improved. Besides, as the T/M ratio increased the twist ductility increased, while displacement ductility decreased. On the other hand, with a higher axial compression ratio, torsion bearing capacity and bending stiffness were both increased. Moreover, the equivalent viscous damping coefficient of bending and torsion were 0.08~0.28 and 0.13~0.23, respectively. The average inter-story drift ratio met the requirements of the Chinese standard. Finally, two modified models were proposed to predict the progression of damage for the L-shaped column under combined loading including torsion.

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Compression-bending performance of L-shaped column composed of concrete filled square steel tubes under eccentric compression

Cited by 22 publications

References 11 publications

A Review of Research on Recycled Aggregate Concrete Filled Steel Tube

A Review of Research on Recycled Aggregate Concrete Filled Steel Tube

Bearing Behavior of H‐Shaped Honeycombed Steel Web Composite Columns with Rectangular Concrete‐Filled Steel Tube Flanges under Eccentrical Compression Load

Experimental Study and Damage Model on the Seismic Behavior of Reinforced Concrete L-Shaped Columns under Combined Torsion

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