Column curves of steel-concrete composite members

Kato, Ben

doi:10.1016/s0143-974x(96)00030-2

Cited by 59 publications

(23 citation statements)

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“…In the past, although there were a large number of research studies on the behaviour of concrete-filled HSS columns and beam-columns, such as Furlong [2], Gardner and Jacobson [3], Ge and Usami [4], Han [5,6], Han et al [7], Kato [8], Kilpatrick and Rangan [9], Knowles and Park [10], Matsui et al [11], Neogi et al [12], O'Shea and Bridge [13]; Prion and Boehme [14]; Rangan and Joyce [15]; Schneider [16]; Shakir-Khalil and Mouli [17], Tomii et al [18], Uy [19,20]; Varma et al [21], Wang [22], and etc., there is relatively little research reported on the flexural behaviour of concrete-filled HSS beams. wall thickness of the steel tube W scm section modulus of the composite beams, given by B 3 /6 for composite beams with square sections; given by BD 2 /6 and B 2 D/6 about major (x-x) and minor (y-y) axes, respectively, for composite beams with rectangular sections; given by pD 3 /32 for composite beams with circular sections a steel ratio (¼ A s =A c ) b…”

Section: Introductionmentioning

confidence: 99%

Flexural behaviour of concrete-filled steel tubes

Han

2004

Journal of Constructional Steel Research

262

103

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Section: Introductionmentioning

confidence: 99%

Flexural behaviour of concrete-filled steel tubes

Han

2004

Journal of Constructional Steel Research

262

103

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“…CFST column types have been used in recent high-rise structures in China [13][14][15][16][17][18][19][20][21][22]. CFST structures are emerging as an important structural system for new buildings, particularly for providing earthquake resistance.…”

Section: Literature Reviewmentioning

confidence: 99%

Properties of High-Strength Concrete Filled Steel Tube Columns

Tan¹,

Nichols²

2017

MCSE

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Abstract. High Strength Concrete Filled Steel tubes (CFST) provide a common construction material in China. The purpose of this research was to determine the axial load properties for CFST subjected to concentric and eccentric loading in a series of experiments. The results show that the magnitude of experimentally measured compressive strength increases for the core concrete, due to the confinement from the steel that is proportional to the ratio of the area of steel to the area of concrete. If the slenderness ratio is kept constant the columns bearing capacity and maximum strain decreases as the eccentricity to radius ratio increases. Formulas to estimate the load bearing capacity for short and for slender eccentrically loaded columns were established from the data. The results have been compared statistically to other published results to show that a general linear form of the capacity equation is warranted for High Strength Concrete Filled Steel tubes. Keywords:Concrete filled steel tubes, high strength concrete, bridge construction. IntroductionThe purpose of this research is to experimentally investigate the properties of concrete filled steel tubes (CFST) using a high strength concrete core. The experimental work investigates the ductility and strength properties of steel tubular columns filled with a high strength concrete core, using short and slender columns subjected to either concentric or eccentric loads. The results are compared to recent published data from the USA, Australia, and China [1][2][3][4][5][6][7][8][9][10][11][12]. The protocol for the column compression tests used both concentric and eccentric load rigs. The columns used in the experiments have length to diameter ratios ranging from 3.5 to 15. This paper outlines the literature relevant to this work, provides a methods section, outlines and summarizes the results and the key findings, and provides a conclusion. Literature ReviewCFST column types have been used in recent high-rise structures in China [13][14][15][16][17][18][19][20][21][22]. CFST structures are emerging as an important structural system for new buildings, particularly for providing earthquake resistance. Steel tubular columns filled with normal strength concrete (NSC) have been studied using slender and eccentrically loaded units [23,24], and based on these studies; a design code has been established for Chinese use [25]. A sketch of a typical CFST building connection showing a column and beam connection is drawn in Figure 1. This sketch provides the definitions of the steel wall thickness, diameter of the steel tube and the area of the concrete core of the composite tube. The schematic format of the connection detail shown in Figure 1 comes from a recent Chinese building. The connection detail has been simplified by reducing the number of bolt holes and stiffener plates. The steel plate for the beam connection transfers the load to the steel tube, which relies on the concrete to provide buckling restraint and increased strength for the given cross-sectional area.An ea...

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“…Based on the design method for steel-concrete composite members [27], the coefficient ϕ for this new type of composite column can be calculated by defining the relative slendernessλ. According to the definition forλ, the following equation can be obtained from Eq.…”

Section: Calculation Of Ultimate Strengthmentioning

confidence: 99%