Shear strengthening of reinforced concrete beams using fibre reinforced polymers (FRP)

Alzate, Albert; Arteaga, A.; Diego, Ana de; Perera, Ricardo

doi:10.1080/19648189.2009.9693172

Cited by 8 publications

(4 citation statements)

References 1 publication

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“…Its lower weight compared to ordinary concrete suggests potential applications in seismic areas, offering advantages like increased vibration mode and decreased shear forces in reinforced concrete frames, along with reduced raw material consumption and environmental impact. Moreover, an innovative solution includes a prefabricated light steel solid waste high-strength foam concrete composite wall introduced in a study (69), showcase the material's versatility in achieving load-bearing and energy-efficient integration, demonstrating enhanced bearing capacity, deformation performance, and seismic behavior suitable for earthquake-prone areas. Additionally, studies on the application of Foam Concrete (FC) in the construction of deep-buried structures reveal insights into its dynamic mechanical properties and energy absorption mechanisms, offering potential solutions for challenging construction environments (22).…”

Section: General Information About Foamed Concretementioning

confidence: 99%

Challenges in Foamed Concrete: Exploring Alternative and Sustainable Materials – A Comprehensive Review

Madera Sierra,

Ramos-Escobar,

Manuel A

2023

inycomp

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This document provides a contemporary overview of a wide array of aspects concerning foam concrete and its inherent properties. This review covers topics such as the use of alternative binders, the influence of water/cement ratio, fine aggregate replacements and an examination of mechanical properties. By meticulously scrutinizing compressive strength data from multiple authors, this exploration not only highlights the current state of knowledge but also underscores the potential for future investigations in the realm of foamed concrete. Similarly, this examination realizes the limitations that the unique structure of foamed concrete imposes on diverse applications in construction and engineering.

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Section: General Information About Foamed Concretementioning

confidence: 99%

Challenges in Foamed Concrete: Exploring Alternative and Sustainable Materials – A Comprehensive Review

Madera Sierra,

Ramos-Escobar,

Manuel A

2023

inycomp

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“…The chopped BFs with a length and a diameter of 12mm and 9-23m, respectively, were used throughout the study at varying contents. The density of BFs is 2.8 g/cm 3 .…”

Section: Investigation Of the Effects Of Basalt Fibers On The Flexuramentioning

confidence: 99%

“…While a substantial amount of researches has focused on the flexural behavior of steel fiber reinforced concrete (SFRC), glass fiber reinforced concrete (GFRC) and polypropylene fiber reinforced concrete (PFRC) beams [2][3][4][5], there exists a relatively limited amount of studies concerning the flexural behavior of BFRC beams. Branston et al [6] tested RC beams to evaluate the potential use of chopped fibers in preventing early age cracking and observed increase in the first cracking strength.…”

Section: Introductionmentioning

confidence: 99%

Investigation of the Effects of Basalt Fibers on the Flexural Strength of RC Beams without Stirrups

2018

CBEMS-18,DMCCIA-18,EHSSM-18,BLEIS-18,ICLTET-18 March 21-23, 2018 Istanbul (Turkey)

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Abstract-This research studied the influence of chopped basalt fibers (BFs) on the shear strength of reinforced concrete (RC) beams without stirrups. The beams including one reference and three basalt fiber reinforced concrete (BFRC) beams were tested under concentrated load at mid-span to determine the shear strength. The test parameters are volume fraction of basalt fibers (V f ) and shear span-to-effective depth ratio (a/d) of beam. The deflection of the beam and the cracking pattern were monitored during the test at certain stages of the monotonic loading until failure. It is observed that the contribution of BFs to the strength at the ultimate state decreases as volume fractions of BFs increase from 0% to 1.5%.

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“…The second database includes the experimental results of 89 RC beams externally shear strengthened with FRP using U-jacketing and full wrapping configurations, 49 beams strengthened by FRP U-jacketing and 40 beams strengthened by wrapping. The shear strength results were collected from published literature [12,[32][33][34]; all the specimens used in this work were collected such as grouped in [35]. Furthermore, the selected tests present a high diversity regarding the beam geometric ratios, reinforcement ratios, material properties and, therefore, failure loads.…”

Section: Experimental Databasementioning

confidence: 99%

Design equations for reinforced concrete members strengthened in shear with external FRP reinforcement formulated in an evolutionary multi-objective framework

Perera

Ruíz

2012

Composites Part B: Engineering

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Methods for predicting the shear capacity of FRP shear strengthened RC beams assume the traditional approach of superimposing the contribution of the FRP reinforcing to the contributions from the reinforcing steel and the concrete. These methods become the basis for most guides for the design of externally bonded FRP systems for strengthening concrete structures. The variations among them come from the way they account for the effect of basic shear design parameters on shear capacity. This paper presents a simple method for defining improved equations to calculate the shear capacity of reinforced concrete beams externally shear strengthened with FRP. For the first time, the equations are obtained in a multiobjective optimization framework solved by using genetic algorithms, resulting from considering simultaneously the experimental results of beams with and without FRP external reinforcement. The performance of the new proposed equations is compared to the predictions with some of the current shear design guidelines for strengthening concrete structures using FRPs. The proposed procedure is also reformulated as a constrained optimization problem to provide more conservative shear predictions.

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Shear strengthening of reinforced concrete beams using fibre reinforced polymers (FRP)

Abstract: ABSTRACT. Numerous studies have been carried out and various guidebooks published in the

Cited by 8 publications

References 1 publication

Challenges in Foamed Concrete: Exploring Alternative and Sustainable Materials – A Comprehensive Review

Challenges in Foamed Concrete: Exploring Alternative and Sustainable Materials – A Comprehensive Review

Investigation of the Effects of Basalt Fibers on the Flexural Strength of RC Beams without Stirrups

Design equations for reinforced concrete members strengthened in shear with external FRP reinforcement formulated in an evolutionary multi-objective framework

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