Investigation on square concrete filled double-skin steel tube (CFDST) subjected to local bearing force: Experiments

Yang, You-Fu; Hou, Chunfeng; Meng, Chun-Yuan; Han, Lin-Hai

doi:10.1016/j.tws.2015.04.026

Cited by 20 publications

(3 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Over the past few decades, various research on strengthening of steel structures have been reported [3][4][5]. Strengthening by welding steel plates [6][7][8], by prestressed cables [9,10], by concrete filling [11,12] and by concrete jacketing [13,14] were studied.…”

Section: Nomenclaturementioning

confidence: 99%

Stability of steel columns with bolted strengthening under preload: Experimental study

Wang

Jiang

et al. 2022

Journal of Constructional Steel Research

View full text Add to dashboard Cite

Section: Nomenclaturementioning

confidence: 99%

Stability of steel columns with bolted strengthening under preload: Experimental study

Wang

Jiang

et al. 2022

Journal of Constructional Steel Research

View full text Add to dashboard Cite

“…It could provide a reliable prediction for the ultimate axial strength of double-skin tubular columns filled with short concrete. Yang et al (2015) prepared sixteen double-skin steel tube specimens and only applied concrete between the layers. The results showed that the specimens had a high bearing capacity and a good deformation-resistant ability.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study and Mechanism Analysis of Concrete-Filled Square Steel Tubular Columns Reinforced by Rhombic Stirrups Under Axial Compression

Chen,

Ning,

2021

Front. Mater.

View full text Add to dashboard Cite

The square steel tube component has a beautiful appearance, simple joint connection, and it is widely available. However, the uneven distribution of effective constraints in the cross-section of a square steel tube hinders its application. A novel concrete-filled square steel tubular column was tested under axial compression. There were 11 specimens [10 concrete-filled square steel tube columns reinforced with rhombic stirrups with 90-degree internal angle (SSSC specimens) and 1 concrete-filled square steel tube column (SC specimen)]. The load-displacement curves, the law of failure process, failure mode, mechanism analysis, energy consumption, ductility, and stiffness degradation were described, we then investigated the influence of stirrup diameter, stirrup side length, stirrup spacing, steel tube thickness, aspect ratio, and steel ratio on the mechanical properties of the specimens. The results show that the failure process of the SSSC specimens was basically the same. The ultimate failure mode of the specimens with an aspect ratio of 4 was local buckling failure. The specimens with an aspect ratio of 5 and 6 failed due to bending failure in the plastic stage. The steel tube bulged out in different degrees in most of the debonding areas. The longitudinal bars also produced outward bending deformation in the larger bulging area of the steel tube. Some of the stirrups were broken in the later stage of loading. The characteristics of load-displacement curve changed with the changing of stirrup spacing. The strength of longitudinal constraint had an obvious influence on the bearing capacity. In a certain range of steel ratio (ρs = 8.97% ∼ 9.05%), the weakening of the lateral restraint of the stirrup cage had a greater adverse effect on the bearing capacity than the weakening of the effective restraint of the corner. In a certain range of steel ratio (ρs = 8.97% ∼ 9.49%), strengthening the effective corner constraint of stirrups improved the stiffness of the specimen, however, the ductility performance was reduced. The opposite was true for strengthening the lateral constraint of the stirrup cage.

show abstract

“…Yang et al (2015) and Chen et al (2016) carried out investigations on SHS concrete-fillled double skin tube. Jiang et al (2019a), Jiang et al (2019b), Jiang et al (2019c) and Jiang et al (2020) carried out experimental investigations and numerical analysis on concrete-filled joints with perfobond ribs under different load cases.…”

Section: Introductionmentioning

confidence: 99%

Experimental, numerical and parametric studies on stress concentration factors of T-joints under tension

Matti

Mashiri

2021

Advances in Structural Engineering

View full text Add to dashboard Cite

This paper investigates the behaviour of square hollow section (SHS) T-joints under static axial tension for the determination of stress concentration factors (SCFs) at the hot spot locations. Five empty and corresponding concrete-filled SHS-SHS T-joint connections were tested experimentally and numerically. The experimental investigation was carried out by attaching strain gauges onto the SHS-SHS T-joint specimens. The numerical study was then conducted by developing three-dimensional finite element (FE) T-joint models using ABAQUS finite element analysis software for capturing the distribution of the SCFs at the hot spot locations. The results showed that there is a good agreement between the experimental and numerical SCFs. A series of formulae for the prediction of SCF in concrete-filled SHS T-joints under tension were proposed, and good agreement was achieved between the maximum SCFs in SHS T-joints calculated from FE T-joint models and those from the predicted formulae.

show abstract

Investigation on square concrete filled double-skin steel tube (CFDST) subjected to local bearing force: Experiments

Cited by 20 publications

References 19 publications

Stability of steel columns with bolted strengthening under preload: Experimental study

Stability of steel columns with bolted strengthening under preload: Experimental study

Experimental Study and Mechanism Analysis of Concrete-Filled Square Steel Tubular Columns Reinforced by Rhombic Stirrups Under Axial Compression

Experimental, numerical and parametric studies on stress concentration factors of T-joints under tension

Contact Info

Product

Resources

About