Concrete filled double skin tubular members subjected to bending

Uenaka, Kojiro; Kitoh, Hiroaki; Sonoda, Keiichiro

doi:10.12989/scs.2008.8.4.297

Cited by 29 publications

(9 citation statements)

References 5 publications

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“…By using finite element analysis (FEA), Huang [10] investigated the effects of important parameters which are used to determine sectional capacities of CFDST stub columns. In the other hand, many researchers have investigated the CFDST subjected to only pure bending [11][12][13][14][15], however, comprehensive studies in ultimate bending moment of CFDST, especially with a full scale CFDST, have not been reported so far.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of ultimate bending moment of circular concrete–filled double skin steel tubes using finite element analysis

Viet

Ha²,

Pham

2019

STCE

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In this study, the ultimate bending moment of circular concrete-filled double skin steel tubes (CFDSTs) was investigated. A CFDSTs made of two concentric circular steel tubes with concrete infill and M16 shear connector system was fabricated. The four-point bending test of the 10 m long CFDST consisting of outer and inner steel tubes with 914.4 mm and 514.4 mm in diameter, respectively, was carried out and the ultimate bending moment of the CFDST was investigated. A finite element (FE) simulation of the CFDSTs subjected to bending was developed using the commercial software ABAQUS and the accuracy of the developed FE model was verified by comparing to the experimental result. The ultimate bending moment of CFDSTs was then evaluated with respect to different concrete infill compressive strengths and yield strengths of the steel tubes. The corresponding design ultimate bending moments of the CFDST with regard to the design codes AISC and EC4 were also computed. The results revealed that EC4 and AISC can accurately predict the ultimate moment capacities of the CFDST with shear connector. Keywords: ultimate bending moment; concrete-filled double skin tube; shear connector system; finite element analysis. Received 19 November 2018, Revised 04 January 2019, Accepted 04 January 2019

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Section: Introductionmentioning

confidence: 99%

Evaluation of ultimate bending moment of circular concrete–filled double skin steel tubes using finite element analysis

Viet

Ha²,

Pham

2019

STCE

View full text Add to dashboard Cite

show abstract

“…Tao and Han [9] observed that CFDST beams have shown similar behaviour as conventional concrete-filled steel tube (CFDT) through testing three rectangular-to-rectangular beams. Uenaka et al [10] carried out 12 four-point bending tests and investigated the confinement effect in the compression and tension regions of the CFDST members. The behaviour of CFDST deep beams was also examined through three-point bending tests conducted by Uenaka and kitoh [11], and the results showed the failure modes were controlled by the inner-to-outer tube diameter ratio.…”

Section: Introductionmentioning

confidence: 99%

08.19: Tests on concrete‐filled double skin tubular beams with circular stainless steel outer tubes

2017

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A test program on concrete-filled double skin tubular (CFDST) beams with austenitic stainless steel outer tubes and high strength steel inner tubes is presented in this paper. A total of 22 four-point bending tests was carried out to study the behaviour and strengths of CFDST beams. The stainless steel outer tubes were circular hollow sections (CHS) with average diameter-to-thickness ratios of 56.8 and 48.5, and the measured 0.2% proof strengths of 276 MPa and 300 MPa, respectively. The high strength steel inner tubes were also circular hollow sections (CHS) with diameter-to-thickness ratios ranging from 5.0 to 22.8, and corresponding measured 0.2% proof stress ranging from 433 to 1029 MPa. The annuli were filled with concrete with three different concrete cylinder strengths of 40, 80 and 120 MPa. The moment capacities, moment-curvature relationships and failure modes of the beams are reported in this paper. It should be noted that currently there are no design provisions for concrete-filled stainless steel members. The test strengths were therefore compared with the moment capacity predictions in existing design codes (the European Code and American Specification) for concrete-filled carbon steel tubes. The comparisons revealed that both design codes provide very conservative resistance predictions.

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“…First, centric compressive loading test on CC-CFDST was carried out and design equations have been proposed [18]. Second, symmetric four-point loading test on CC-CFDST beams under pure bending moment was performed [19]. Thirdly, symmetric three-point loading test under bending and shear was carried out [20].…”

Section: Introductionmentioning

confidence: 99%

Concrete filled double skin tubular members subjected to bending

Cited by 29 publications

References 5 publications

Evaluation of ultimate bending moment of circular concrete–filled double skin steel tubes using finite element analysis

Evaluation of ultimate bending moment of circular concrete–filled double skin steel tubes using finite element analysis

08.19: Tests on concrete‐filled double skin tubular beams with circular stainless steel outer tubes

CFDST stub columns having outer circular and inner square sections under compression

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