Plastic fibres as the only reinforcement for flat suspended slabs: Experimental investigation and numerical simulation

Pujadas, Pablo; Blanco, Ana; Cavalaro, Sérgio Henrique Pialarissi; Aguado, Antonio

doi:10.1016/j.conbuildmat.2014.01.082

Cited by 104 publications

(65 citation statements)

References 22 publications

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“…The ones that evaluate the behavior of large-scale elements usually focus either on the comparison between elements with fibers and with traditional reinforcement (Pujadas et al 2012) or on the analysis of only one type of fiber. In line with this, recent studies evaluated the experimental response of slabs reinforced only with fibers and addressed the applicability of the current constitutive models to estimate their flexural performance (Michels et al 2012, Pujadas et al 2014a, Blanco et al 2015a). …”

Section: Introductionmentioning

confidence: 87%

“…Even though the experimental programs are described in detail in (Pujadas et al 2014a) and (Blanco et al 2015a), a brief presentation is included in this section to facilitate the comprehension of the analysis performed afterwards.…”

Section: Experimental Investigationmentioning

confidence: 99%

“…In particular, Blanco et al (2015a) and Pujadas et al (2014a) tested full-scale slabs reinforced only with steel and plastic fibers, respectively. Although the results obtained shed light on specificities regarding the behavior of full-scale slabs with each type of fiber, no direct comparison was made among them.…”

Section: Introductionmentioning

confidence: 99%

“…With such intent, an overview of the main differences regarding the pullout behavior of plastic and steel fibers is presented. Then, a comparative study based on the experimental program by Pujadas et al (2014a) and Blanco et al (2015a) was conducted to expose differences in terms of crack patterns and load-deflection behavior directly related with particularities of the pullout response of each fiber. Subsequently, finite element simulations of the tests were performed using the constitutive equation from the Model Code 2010.…”

Section: Introductionmentioning

confidence: 99%

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Influence of the Type of Fiber on the Structural Response and Design of FRC Slabs

et al. 2016

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Most codes for the design of fiber reinforced concrete (FRC) structures are based on the experience achieved throughout the years with steel fibers. Recent codes include the possibility of applying the same considerations for FRC structures with plastic fiber. However, the consequences of assuming identical design considerations regardless of the type of fiber is scarcely known in terms of the structural behavior of full-scale elements. The main goal of this paper is to assess the influence of the type of fiber on the performance of full-scale concrete slabs, emphasizing on the consequences of using a common design approach. For that, a comparative experimental study was conducted in order to expose differences regarding the crack pattern and load-deflection behavior. Then, finite element simulations were performed using the constitutive equations from the Model Code 2010. The results indicate distinct levels of overestimation of the structural behavior measured experimentally, confirming that specific design considerations are required depending on the type of fiber used. Based on the findings, correction factors are proposed for the design of FRC slabs with each fiber.

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Section: Introductionmentioning

confidence: 87%

Section: Experimental Investigationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Influence of the Type of Fiber on the Structural Response and Design of FRC Slabs

et al. 2016

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“…Este aspecto ya ha sido probado a nivel experimental en dovelas [41] y losas [42][43][44] y cuantificado de forma cualitativa por [43][44][45][46]; asimismo, en [47,48] se han llevado a cabo simulaciones numéricas del comportamiento mecánico en losas de HRF, empleando distintas ecuaciones constitutivas, con el fin de poder calibrar dicho coeficiente. Sin embargo, pese a los avances en esta dirección, aún no se ha podido establecer un método sistemático y fiable para poder evaluar el coeficiente K para los distintos HRF y distintas condiciones de contorno.…”

Section: Parámetros De La Ecuación Constitutiva Para El Diseño De Hrfunclassified

Diseño óptimo de dovelas de hormigón reforzado con fibras para el revestimiento de túneles

Fuente

Blanco²,

Pujadas³

et al. 2014

Hormigón y Acero

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Influence of polypropylene fibers on the flexural behavior of reinforced concrete slabs with different opening shapes and sizes

Al-Rousan

2017

Structural Concrete

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Funding informationNone.The effect of polypropylene fibers (PF) on the flexural behavior of reinforced concrete one-way slabs with opening was investigated in this paper. The evaluated parameters included four different PF volume percentages (0, 0.3, 0.6, and 0.9%), with and without opening, two opening shapes (square and circular), and three opening sizes (100, 150, and 200 mm). Three groups of tested slabs were casted: without opening, with square opening, and circular opening, resulting in a total of 28 slabs. The behavior of each slab was evaluated in terms of the cracking load, ultimate capacity, initial and yielding stiffness, deflection ductility, and energy ductility. In addition, the steel and concrete strains, crack opening, and mode of failure were measured and monitored. The minimum design load capacities were calculated theoretically based on the sectional analysis and compared with the tested ones. The results showed that the use of PF at percentages greater than 0.6% significantly enhanced the performance parameters of the slabs with small opening size (2% opening ratio) and provided acceptable enhancement for slabs with large opening size (8% opening ratio). Therefore, the PF can be optimized to substitute the conventional steel reinforcement of slabs with small openings, especially circular openings. K E Y W O R D S flexural behavior, polypropylene fiber, reinforced concrete, sectional analysis, slab opening

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Plastic fibres as the only reinforcement for flat suspended slabs: Experimental investigation and numerical simulation

Cited by 104 publications

References 22 publications

Influence of the Type of Fiber on the Structural Response and Design of FRC Slabs

Influence of the Type of Fiber on the Structural Response and Design of FRC Slabs

Diseño óptimo de dovelas de hormigón reforzado con fibras para el revestimiento de túneles

Influence of polypropylene fibers on the flexural behavior of reinforced concrete slabs with different opening shapes and sizes

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