Recent research on cold-formed steel beams and columns subjected to elevated temperature: A review

Javed, Muhammad Faisal; Hafizah, Nor; Memon, Shazim Ali; Jameel, Mohammed; Aslam, Muhammad Shahzad

doi:10.1016/j.conbuildmat.2017.03.226

Cited by 34 publications

(12 citation statements)

References 74 publications

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“…(5) It reduces structural health monitoring cost: The self-sensing properties of graphene cement based composites detect damages and cracks in the cementitious materials without any additional equipment [6]. (6) It enhances fire resistance: Due to high thermal conductivity of graphene cement composite materials, the behavior of cement based composite against fire is improved [7,8]. (7) It develops ultra-strong composite material: The utilization of super advance high strength composite building material for housing and infrastructure will mitigate damage from cyclones, earthquakes and wildfires, saving lives as well as the resources required for reconstruction.…”

Section: Introductionmentioning

confidence: 99%

Influence of Graphene Nanosheets on Rheology, Microstructure, Strength Development and Self-Sensing Properties of Cement Based Composites

et al. 2018

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In this research, Graphene oxide (GO), prepared by modified hammer method, is characterized using X-ray Diffraction (XRD), Fourier Transform Infrared (FT-IR) Spectrometry and Raman spectra. The dispersion efficiency of GO in aqueous solution is examined by Ultraviolet-visible spectroscopy and it is found that GO sheets are well dispersed. Thereafter, rheological properties, flow diameter, hardened density, compressive strength and electrical properties of GO based cement composite are investigated by incorporating 0.03% GO in cement matrix. The reasons for improvement in strength are also discussed. Rheological results confirm that GO influenced the flow behavior and enhanced the viscosity of the cement based system. From XRD and Thermogravimetric Analysis (TGA) results, it is found that more hydration occurred when GO was incorporated in cement based composite. The GO based cement composite improves the compressive strength and density of mortar by 27% and 1.43%, respectively. Electrical properties results showed that GO-cement based composite possesses self-sensing characteristics. Hence, GO is a potential nano-reinforcement candidate and can be used as self-sensing sustainable construction material.

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Section: Introductionmentioning

confidence: 99%

Influence of Graphene Nanosheets on Rheology, Microstructure, Strength Development and Self-Sensing Properties of Cement Based Composites

et al. 2018

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“…Cold-formed steel (CFS) sections are used increasingly in commercial and residential buildings because of its superior strength to weight ratio, and ease of installation [1][2][3][4]. These sections usually have web holes for installation of electrical and plumbing services.…”

Section: Introductionmentioning

confidence: 99%

Finite Element Analysis of Unfastened Cold-Formed Steel Channel Sections With Web Holes Under End-Two-Flange Loading at Elevated Temperatures

Kumar

Roy

Uzzaman

et al. 2021

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This paper presents the results of a finite element investigation on cold-formed steel (CFS) channel sections with circular web holes under end-two-flange (ETF) loading condition and subjected to elevated temperatures. The stress strain curve for G250 CFS with 1.95 mm thickness at elevated temperatures was taken from Kankanamge and Mahendran and the temperatures were considered up to 700 oC. To analyse the effect of web hole size and bearing length on the strength of such sections at elevated temperatures, a parametric study involving a total of 288 FE models was performed. The parametric study results were then used to assess the applicability of the strength reduction factor equation presented by Uzzaman et al. for CFS channel-sections with web holes under ETF loading from ambient temperature to elevated temperatures. It is shown that the reduction factor equation is safe and reliable at elevated temperatures.

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“…With a growing demand for high-rise structures, it is difficult and impossible to use reinforced concrete due to its low strength-to-weight ratio [3]. While, on the other hand, an exponential rise in the use of steel structures has been observed [4]. This increase is due to steel properties resistant to both compressive and tensile loading [5].…”

Section: Introductionmentioning

confidence: 99%

Axial Behavior of Concrete-Filled Double-Skin Tubular Stub Columns Incorporating PVC Pipes

et al. 2021

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This experimental study presents concrete-filled double-skin tubular columns and demonstrates their expected advantages. These columns consist of an outer steel tube, an inner steel tube, and concrete sandwiched between two tubes. The influence of the outer-to-inner tube dimension ratio, outer tube to thickness ratio, and type of inner tube material (steel, PVC pipe) on the ultimate axial capacity of concrete-filled double-skin tubular columns is studied. It is found that the yield strength of the inner tube does not significantly affect the ultimate axial capacity of concrete-filled double-skin tubular composites. With the replacement of the inner tube of steel with a PVC pipe, on average, less than 10% strength is reduced, irrespective of size and dimensions of the steel tube. Hence, the cost of a project can be reduced by replacing inner steel tubes with a PVC pipes. Finally, the experimental results are compared with the existing design methods presented in AISC 360-16 (2016), GB51367 (2019), and EC4 (2004). It is found from the comparison that GB51367 (2019) gives better results, followed by AISC (2016) and EC4 (2004).

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Recent research on cold-formed steel beams and columns subjected to elevated temperature: A review

Cited by 34 publications

References 74 publications

Influence of Graphene Nanosheets on Rheology, Microstructure, Strength Development and Self-Sensing Properties of Cement Based Composites

Influence of Graphene Nanosheets on Rheology, Microstructure, Strength Development and Self-Sensing Properties of Cement Based Composites

Finite Element Analysis of Unfastened Cold-Formed Steel Channel Sections With Web Holes Under End-Two-Flange Loading at Elevated Temperatures

Axial Behavior of Concrete-Filled Double-Skin Tubular Stub Columns Incorporating PVC Pipes

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