Experiments on membrane action of composite floors with steel fibre reinforced concrete slab exposed to fire

Bednář, Jan; Wald, František; Vodička, Jan; Kohoutková, Alena

doi:10.1016/j.firesaf.2013.04.008

Cited by 39 publications

(21 citation statements)

References 5 publications

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“…The addition of metallic fibers in concrete, when subjected to fire, produces a positive influence, improving energy absorption and reducing cracking [17][18][19]. In the case of the addition of polypropylene fibers, the ability to reduce cracking is due to fact that concrete permeability increases suddenly between 80°C and 130°C, and polypropylene, once it has reached the melting point, flows through the cracks and produces channels allowing the water vapor and gases to be evacuated releasing the pore pressure [20][21][22][23][24][25][26][27][28].…”

Section: Introductionmentioning

confidence: 99%

Analysis of fire resistance of concrete with polypropylene or steel fibers

Serrano

Escamilla

Barrio

et al. 2016

Construction and Building Materials

126

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a b s t r a c tThe decrease in concrete resistance and the expansion generated in reinforced concrete structures by direct exposure to fire at 400°C maximum temperature serves as the basis for the present research. The aim is to improve these problems by the addition of steel fibers or of polypropylene fibers in concrete.From the results analysis of compression fracture tests on cylindrical concrete specimens, it can be concluded that concrete with addition of polypropylene fibers or steel fibers are a good alternative to traditional concrete, because both its strength, and its behavior in case of fire are improved, delaying the appearance of fissures and explosive concrete spalling.

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Section: Introductionmentioning

confidence: 99%

Analysis of fire resistance of concrete with polypropylene or steel fibers

Serrano

Escamilla

Barrio

et al. 2016

Construction and Building Materials

126

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“…It can be seen that the temperature rise influences the performance of the member negatively. Numerous research results on slabs with corrugated sheets have confirmed this outcome [20,21,22,23]. The cracking and yielding moments and displacements are listed in Table 2.…”

Section: Materials Properties Under Elevated Temperaturementioning

confidence: 62%

Concrete-Galvalume Composite Behavior under Elevated Temperatures, Experiment and Numerical Simulation

Maryoto¹,

Aylie²,

H³

2019

Preprint

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A galvalume corrugated sheet was utilized as formwork for a reinforced concrete beam in flexure. A numerical model was validated to the experimentally obtained data, and further adopted to simulate the behavior of this composite structure under elevated temperatures. The properties and constitutive stress-strain data of the basic materials were obtained from experiments, and superimposed into the finite element model. The study concluded that the load carrying capacity of the member decreased as a direct function on temperature increase, and the cracking moment was very sensitive to the temperature fluctuation. The elevated temperatures also altered the failure mode.

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“…The four-point bending tests were performed on the specimens, which were heated up to 500°C and 600°C by five electrical ceramic heaters attached to the specimens in the test machine (see Figure 7). A detailed description of the experiments is introduced in paper [13].…”

Section: Validation Of the Modelmentioning

confidence: 99%

“…Based on the material tests performed at 20°C, 500°C and 600°C, the most appropriate parameters of constitutive law for the FE material model of SFRC for elevated temperature up to 1100°C were defined. This paper is part of a complex research project, which includes material testing at elevated temperatures, structural testing at high temperatures [12,13], and material and structural modelling. The results of structural modelling with a proposed material model are under preparation and will be presented in a forthcoming paper.…”

Section: Introductionmentioning

confidence: 99%

Constitutive Model of Steel Fibre Reinforced Concrete Subjected to High Temperatures

Blesak¹,

Goremikins²,

Wald³

et al. 2016

Acta Polytech

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Research on structural load-bearing systems exposed to elevated temperatures is an active topic in civil engineering. Carrying out a full-size experiment of a specimen exposed to fire is a challenging task considering not only the preparation labour but also the necessary costs. Therefore, such experiments are simulated using various software and computational models in order to predict the structural behaviour as exactly as possible. In this paper such a procedure, focusing on software simulation, is described in detail. The proposed constitutive model is based on the stress-strain curve and allows predicting SFRC material behaviour in bending at ambient and elevated temperature. SFRC material is represented by the initial linear behaviour, an instantaneous drop of stress after the initial crack occurs and its consequent specific ductility, which influences the overall modelled specimen behaviour under subjected loading. The model is calibrated with ATENA FEM software using experimental results.

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Experiments on membrane action of composite floors with steel fibre reinforced concrete slab exposed to fire

Cited by 39 publications

References 5 publications

Analysis of fire resistance of concrete with polypropylene or steel fibers

Analysis of fire resistance of concrete with polypropylene or steel fibers

Concrete-Galvalume Composite Behavior under Elevated Temperatures, Experiment and Numerical Simulation

Constitutive Model of Steel Fibre Reinforced Concrete Subjected to High Temperatures

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