Behaviour of concrete-filled double skin rectangular steel tubular beam–columns

Tao, Zhong; Han, Lin‐Hai

doi:10.1016/j.jcsr.2005.11.008

Cited by 165 publications

(79 citation statements)

References 19 publications

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“…The profile of outer tube and cavity ratio in the CFDST columns are among factors that affect the behaviour of CFDST at ambient temperature [1]. On the other hand, load and load case are important factors affecting the fire resistance of CFST columns [8]. So, in the experimental program, the variable parameters selected were load ratio (n), cavity ratio (w), load case and the profile.…”

Section: Specimensmentioning

confidence: 99%

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Fire performance of self-consolidating concrete filled double skin steel tubular columns: Experiments

Lü

Han

Zhao

2010

Fire Safety Journal

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119

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Section: Specimensmentioning

confidence: 99%

“…CFDST columns have great potential to be used as columns or piers in structures. In recent years, research has been conducted on the static and seismic behaviour of such composite columns [1][2][3][4][5][6][7][8]. However, very limited information is available on CFDST columns under fire conditions.…”

Section: Introductionmentioning

confidence: 99%

Fire performance of self-consolidating concrete filled double skin steel tubular columns: Experiments

Lü

Han

Zhao

2010

Fire Safety Journal

Self Cite

119

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“…While the behaviour of double skin steel tube confined concrete structural members has been investigated extensively (e.g. Tao and Han, 2004and 2006, Wright et al 1991aand 1991b, Lu and Kennedy, 1993, the performance of double flax fibre reinforced polymer confined coconut fibre reinforced concrete (DFFRP-CFRC) composite is unknown. To the authors' knowledge the behaviour of DFFRP-CFRC composite is studied for the first time in this work.…”

Section: Natural Fibre Reinforced Polymer-concrete Structuresmentioning

confidence: 99%

Performance of a natural fibre reinforced polymer-concrete bridge pier in earthquakes

Chen¹,

Chouw²

2015

Proceedings of the Second International Conference on Performance-Based and Life-Cycle Structural Engineering (PLSE 2015)

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Glass or carbon fibre reinforced polymers are extensively used in the automobile and the aerospace industries. However, in civil infrastructure their usage is mainly limited to retrofitting, because synthetic fibres are expensive. Steel is heavy, expensive and subject to corrosion. Instead of steel reinforcement in civil structures the usage of natural materials will reduce the total mass and cost of the structures and circumvent the long-term problem of corrosion. In this paper flax fibre reinforced polymer (FFRP) and coconut fibre reinforced concrete (CFRC) are investigated. Because of the usage of less mass the corrosion-free composite structures will experience less effect of dynamic loads and require less running maintenance. The seismic performance of a simple bridge pier made of FFRP-CFRC composite is presented. The earthquake loading is simulated by a shake table. The results indicate that the new composite has a potential for becoming resilient construction materials for future structures.

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“…Double-skinned CFST columns have some advantages over single-skinned CFST columns. From a structural point of view, double-skinned CFST columns have higher uni-axial strength (Han et al, 2011;Tao et al, 2004;Uenaka et al, 2010;Wright et al, 1991;Yang et al, 2008;, bending stiffness, moment capacity Lin and Tsai, 2001;Lu et al, 2009;Tao and Han, 2006), better ductility and excellent seismic performance (Zhao et al, 2010). The strength-to-weight ratio is largely improved owing to the cavity inside the inner steel tube.…”

Section: Introductionmentioning

confidence: 99%

Improving interface bonding of double-skinned CFST columns

Dong¹,

2013

Magazine of Concrete Research

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It has been demonstrated that high-strength concrete (HSC) is able to improve the strength-to-weight ratio of reinforced concrete columns and maximise the usable areas of tall buildings. However, closely spaced transverse reinforcement needs to be installed to provide stronger confinement for averting brittle failure of HSC. To resolve the problem, double-skinned concrete-filled-steel-tubular (CFST) columns have been advocated, which eliminates the steel congestion problem for better concrete placing and reduces the concrete arching action thus providing a more uniform confining pressure. Despite these advantages, a major shortcoming of double-skinned CFST columns is that imperfect interface bonding occurs in the elastic stage that reduces elastic strength and stiffness. Thus, the authors proposed to adopt external confinement to restrict the lateral dilation of the outer tube of double-skinned CFST columns. To verify the effectiveness of the proposed external rings, a total of 20 double-skinned normal-and high-strength CFST columns were tested. From the test results, it was observed that the stiffness, axial load-carrying capacity and ductility of ringconfined double-skinned CFST columns were significantly higher than the unconfined columns.

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Behaviour of concrete-filled double skin rectangular steel tubular beam–columns

Cited by 165 publications

References 19 publications

Fire performance of self-consolidating concrete filled double skin steel tubular columns: Experiments

Fire performance of self-consolidating concrete filled double skin steel tubular columns: Experiments

Performance of a natural fibre reinforced polymer-concrete bridge pier in earthquakes

Improving interface bonding of double-skinned CFST columns

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