Fire behaviour of hollow structural section steel columns filled with high strength concrete

Schaumann, Peter; Kodur, Venkatesh; Bahr, Oliver

doi:10.1016/j.jcsr.2009.04.013

Cited by 56 publications

(29 citation statements)

References 7 publications

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“…In addition, adding steel fibers will not significantly increase the construction cost and difficulty. It should also be noted that the addition of steel fibers is also beneficial for the fire resistance of the CFST columns [38][39][40]. This is an additional merit of adding steel fibers to concrete.…”

Section: Ductility Indexmentioning

confidence: 99%

Behavior of steel fiber reinforced concrete-filled steel tube columns under axial compression

et al. 2015

Construction and Building Materials

113

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Section: Ductility Indexmentioning

confidence: 99%

Behavior of steel fiber reinforced concrete-filled steel tube columns under axial compression

et al. 2015

Construction and Building Materials

113

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“…Test results show that high-strength CFST columns could not satisfy the requirement of fire resistance limit generally, according to Standard CAN/ CSA-S16.1-M89 ''Limit states design of steel structures.'' Many researchers [5][6][7][8][9] conducted a series of studies on CFST members through experiments and theoretical approaches. The studies proposed several methods to compute fire resistance, which has now been adopted in practical design.…”

Section: Introductionmentioning

confidence: 99%

Study of recycled concrete–filled steel tubular columns on the compressive capacity and fire resistance

Wang

Zha

Liu

et al. 2017

Advances in Mechanical Engineering

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This study presents the analytical formulation of circular steel tubular column with hollow concrete section. This unified analytical formulation can evaluate the axial compression capacity and buckling load of this innovative composite section at normal and high temperature levels, as well as the normal and recycled concrete in a similar fashion. Therefore, the confinement effect on this composite section is uncertain, which in turn leads to complications in axially loaded compression evaluation, because the inner surface of the hollow concrete section is unrestrained. To this end, this study adopts the effective constraint, which can further assist in transmitting from normal concrete to recycled concrete material to address sustainability issues. In addition, the concept of average temperature is proposed to formulate the failure load of circular hollow recycled concrete-filled steel tubular section and circular hollow concrete-filled steel tubular section columns at high temperature.

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“…The different thermal expansions in the steel wall and the concrete core decrease their interaction. In the initial stage of exposure to fire, the steel wall carries the load [40]. Then, since the steel wall attains critical temperature it yields which is led to the significant decrease of its strength.…”

Section: Introductionmentioning

confidence: 99%

Behaviour of stiffened concrete-filled steel composite (CFSC) stub columns

Bahrami

Badaruzzaman

Osman

2013

Lat. Am. j. solids struct.

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This paper investigates the behaviour of axially loaded stiffened concrete-filled steel composite (CFSC) stub columns using the finite element software LUSAS. Modelling accuracy is established by comparing results of the nonlinear analysis and the experimental test. The CFSC stub columns are extensively developed using different special arrangements, number, spacing, and diameters of bar stiffeners with various steel wall thicknesses, concrete compressive strengths, and steel yield stresses. Their effects on the columns behaviour are examined. Failure modes of the columns are also illustrated. It is concluded that the parameters have considerable effects on the behaviour of the columns. An equation is proposed based on the obtained results to predict the ultimate load capacity of the columns. Results are compared with predicted values by the design code EC4, suggested equation of other researchers, and proposed equation of this study which is concluded that the proposed equation can give closer predictions than the others.

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Fire behaviour of hollow structural section steel columns filled with high strength concrete

Cited by 56 publications

References 7 publications

Behavior of steel fiber reinforced concrete-filled steel tube columns under axial compression

Behavior of steel fiber reinforced concrete-filled steel tube columns under axial compression

Study of recycled concrete–filled steel tubular columns on the compressive capacity and fire resistance

Behaviour of stiffened concrete-filled steel composite (CFSC) stub columns

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