Fire performance of innovative steel-concrete composite columns using high strength steels

Espinós, Ana; Romero, Manuel L.; Lam, Dennis

doi:10.1016/j.tws.2016.04.014

Cited by 48 publications

(18 citation statements)

References 35 publications

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“…It is therefore shown that SRCFSST columns offer a good solution for enhancing the fire resistance of traditional CFST or CFSST columns, but the cross-sectional areas of the outer tube and inner steel profile should be chosen carefully to find the optimal balance between ambient temperature performance and fire resistance. Similar conclusions were reached by Espinos et al 31 for traditional CFST columns with embedded HEB profiles.…”

Section: Comparisons Between the Composite Columns With The Same Steesupporting

confidence: 88%

Performance of Steel-Reinforced Concrete-Filled Stainless Steel Tubular Columns at Elevated Temperature

Tan

Gardner

Han

2018

Int. J. Str. Stab. Dyn.

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Steel-reinforced concrete-filled stainless steel tubular (SRCFSST) columns combine the advantages of concrete-filled stainless steel tubular (CFSST) columns and steel-reinforced concrete (SRC) columns, resulting in excellent corrosion resistance, good economy, good ductility, and excellent fire resistance. Thus, SRCFSST columns have many potential structural engineering applications, especially in offshore structures. The performance of SRCFSST columns at elevated temperatures is investigated by finite element (FE) analysis in this paper. Firstly, FE models capable of capturing the full load-deformation response of structural members at elevated temperatures are developed and validated against relevant published tests on CFSST and SRC columns under fire conditions. Based on the validated FE models, the behavioral mechanisms of the SRCFSST columns under fire are explained by analysis of the sectional temperature distribution, typical failure modes, axial deformation versus time response, and load redistribution. Finally, the fire resistance of SRCFSST columns is evaluated in comparison to CFSST columns with equivalent sectional load-bearing capacity at ambient temperature or equivalent steel ratios. The results lay the foundation for the development of fire resistance design rules for SRCFSST columns.

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Section: Comparisons Between the Composite Columns With The Same Steesupporting

confidence: 88%

Performance of Steel-Reinforced Concrete-Filled Stainless Steel Tubular Columns at Elevated Temperature

Tan

Gardner

Han

2018

Int. J. Str. Stab. Dyn.

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“…Recent studies used NC as filling mixture in the HSC because OPC is the most consumed material in construction industry because of the availability (Espinos et al, 2015b;Du et al, 2017;Liu et al, 2017;Espinos et al, 2014;Liew et al, 2016;Espinos et al, 2016). The study on the performance of CFHS is actively conducted, especially in countries that are exposed to fire and earthquake (Buchanan and Abu, 2017).…”

Section: Filling Materialsmentioning

confidence: 99%

A review on utilization of different concretes as in-filled steel hollow column subjected to fire loading

Zuhan

Kadir

Mastor

et al. 2021

JSFE

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Purpose Concrete-filled steel hollow (CFHS) column is an innovation to improve the performance of concrete or steel column. It is believed to have high compressive strength, good plasticity and is excellent for seismic and fire performance as compared to hollow steel column without a filler. Design/methodology/approach Experimental and numerical investigation has been carried out to study the performance of CFHS having different concrete in-fill and shape of steel tube. Findings In this paper, an extensive review of experiment performed on CFHS columns at elevated temperature is presented in different types of concrete as filling material. There are three different types of concrete filling used by the researchers, such as normal concrete (NC), reinforced concrete and pozzolanic-fly ash concrete (FC). A number of studies have conducted experimental investigation on the performance of NC casted using recycled aggregate at elevated temperature. The research gap and the recommendations are also proposed. This review will provide basic information on an innovation on steel column by application of in-filled materials. Research limitations/implications Design guideline is not considered in this paper. Practical implications Fire resistance is an important issue in the structural fire design. This can be a guideline to define the performance of the CFHS with different type of concrete filler at various exposures. Social implications Utilization of waste fly ash reduces usage of conventional cement (ordinary Portland cement) in concrete production and enhances its performance at elevated temperature. The new innovation in CFHS columns with FC can reduce the cost of concrete production and at the same time mitigate the environmental issue caused by waste material by minimizing the disposal area. Originality/value Review on the different types of concrete filler in the CFHS column. The research gap and the recommendations are also proposed.

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“…The numerical model was developed using ABAQUS [5]. Numerical investigations of concrete-steel composite columns have been reported in [6][7][8][9][10]. In this study, four-noded doubly curved shell elements with reduced integration (S4R) were employed to model the metal tubes, while eight-noded brick elements with three translational degrees of freedom at each node (C3D8R) were used for the concrete.…”

Section: Description Of Finite Element Modelmentioning

confidence: 99%

Numerical study of concrete-filled austenitic stainless steel CHS stub columns with high-strength steel inner tubes

Wang

Young

Gardner

2018

Proceedings 12th International Conference on Advances in Steel-Concrete Composite Structures - ASCCS 2018

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A numerical modelling programme simulating the structural behaviour of concrete-filled double skin tubular (CFDST) stub columns with stainless steel outer tubes and high strength steel inner tubes is presented in this paper. The numerical model, which was developed using the finite element package ABAQUS, was initially validated against existing experimental results considering ultimate load, load-deflection histories and failure modes, with good agreement observed. Upon validation of the FE model, an extensive parametric study was undertaken whereby the cross-section slendernesses of the outer and inner tubes, the strength of the inner tube and the concrete grades were varied. These generated results together with the experimental data were then employed to assess the suitability of the design provisions of the European Standard EN 1994-1-1 and American Specification for concrete-filled tubes. Modifications to these design rules are also proposed, and a reduction factor (η) is suggested to account for the effective compressive strength in high strength concrete.

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Fire performance of innovative steel-concrete composite columns using high strength steels

Cited by 48 publications

References 35 publications

Performance of Steel-Reinforced Concrete-Filled Stainless Steel Tubular Columns at Elevated Temperature

Performance of Steel-Reinforced Concrete-Filled Stainless Steel Tubular Columns at Elevated Temperature

A review on utilization of different concretes as in-filled steel hollow column subjected to fire loading

Numerical study of concrete-filled austenitic stainless steel CHS stub columns with high-strength steel inner tubes

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