Seismic behavior of exterior connections with steel beams bolted to CFT columns

Li, X.; Xiao, Yan; Wu, Yuntian

doi:10.1016/j.jcsr.2009.03.009

Cited by 60 publications

(12 citation statements)

References 14 publications

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“…Sheet et al [14]), or (ii) detailing bolts or rods to be slightly offset so they do not clash inside the tube (e.g. Li et al [15]). Both of these connection types have behaved well in experiments, although Wu et al [16] showed that for very thin tube webs, yielding occurred even with concrete infill present.…”

Section: Bolted Moment Endplate Connectionsmentioning

confidence: 99%

Suitability of CFT columns for New Zealand moment frames

Chunhaviriyakul

MacRae

Anderson³

et al. 2015

BNZSEE

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Composite steel-concrete construction uses steel and concrete together to provide the possibility of a system with better performance, and/or lower cost, than using either material alone. This paper firstly subjectively evaluates the advantages and disadvantages of a number of composite concrete filled tubular (CFT) column-connection systems proposed/used around the world in terms of their likely acceptance in moment frames in New Zealand. Then, the cost of a conventional one-way moment-resisting steel frame system is compared with a similarly behaving frame using rectangular concrete filled steel tubular (CFT) columns. It is shown for these studies conducted on one-way frames that composite CFT column construction with beam end-plate connections is generally more expensive than conventional steel column construction.

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Section: Bolted Moment Endplate Connectionsmentioning

confidence: 99%

Suitability of CFT columns for New Zealand moment frames

Chunhaviriyakul

MacRae

Anderson³

et al. 2015

BNZSEE

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“…Beam‐column connections should possess reliable force‐transferring mechanism and convenient construction procedure in the structure design . For CFST structure, more research has been conducted in order to better understand the behavior of CFST frames, as well as to develop new joint forms that demonstrate adequate structural performance under seismic loading conditions . Therefore, the research results can provide suggestions for the joint design in CFDST structure.…”

Section: Introductionmentioning

confidence: 99%

Beam‐column connections of concrete‐filled double steel tubular frame structures

Zhang

Zhou

2019

Structural Design Tall Build

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Four types of concrete-filled double steel tubular (CFDST) columns were introduced in this paper, which had the advantage of higher bearing capacity, stronger stiffness, and better fire-resistant and explosion-resistant performance. To research a reasonable form of beam-column connection is the top priority in CFDST frame structures. After a brief historical background concerning the development of CFDST columns, this study conducted an investigation and comparison of several existing beam-column connections. The constructional detail and force transfer mechanism of each beam-column connection were analyzed according to the present research achievements. Several finite element models were established to discuss the various connection configurations and main factors affecting their behaviors. In general, connection design can take full advantage of the characteristic of double tubes in CFDST structure, so a series of construction improvements for joint design parameters in CFDST frame structures was proposed to improve the seismic performance and the relevant study for the future work was also discussed.

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“…It was found that the continuous beam connection had the highest strength and ductility. Some other connection types have also been studied, these include: beam end-plate connections with through-bolts [5,6,7]; beam end-plate connections and T-stub connections with anchored or blind bolts [8,9]; welded T-stiffeners [10,11,12]; and welded diaphragm plate connections [13,14,15].…”

Section: Introductionmentioning

confidence: 99%

Diaphragm axial capacity for external diaphragm connections (EDCs) in square CFST column structures

Tjahjanto

MacRae

Abu

et al. 2019

BNZSEE

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This paper evaluates external diaphragm axial capacity in moment frame structures with square concrete-filled steel tubular (CFST) columns considering bidirectional loading. Three design methods were considered: (1) the CIDECT method; (2) the equivalent beam method; and (3) the tie method. Finite element analyses were conducted to investigate the behaviour of an external diaphragm plate connected to a square CFST column under varied bidirectional diaphragm axial forces. It is shown that the perpendicular diaphragm axial forces did not reduce the diaphragm axial capacity significantly, which is consistent with the assumptions made by the CIDECT method and the tie method. The CIDECT method, in some cases, was not conservative. Among the considered methods, the tie method was the most justifiable method, although in some cases the capacity predictions were too conservative. The tie method was later modified by considering the contribution of the steel tube in addition to the diaphragm plate in calculating the diaphragm axial capacity. The modified tie method was shown to accurately predict a lower bound estimate of the capacity of an external diaphragm connection.

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Seismic behavior of exterior connections with steel beams bolted to CFT columns

Cited by 60 publications

References 14 publications

Suitability of CFT columns for New Zealand moment frames

Suitability of CFT columns for New Zealand moment frames

Beam‐column connections of concrete‐filled double steel tubular frame structures

Diaphragm axial capacity for external diaphragm connections (EDCs) in square CFST column structures

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