Flexural behaviour of RC T-beams strengthened with different FRP materials

Tiago Carvalho; Carlos Chastre; Hugo Biscaia; Raquel Paula

Flexural behaviour of RC T-beams strengthened with different FRP materials

Tiago Carvalho, Carlos Chastre, Hugo Biscaia, Raquel Paula

DEC - Departamento de Engenharia Civil

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

10 Citations (Scopus)

Abstract

The strengthening of reinforced concrete structures with FRP materials has received a considerable increment in recent years due to the high strength-weight and stiffness-weight ratios of FRP compared to other materials. An experimental programme was conducted in order to analyse the behaviour of different structural solutions to strengthen reinforced concrete beams with FRP composites (EBR GFRP, EBR CFRP, NSRM-CFRP) and is described. The RC T beams had a 3m span by 0.3m height and were tested until rupture in a 4-point bending test system. The NSMR technique has proved to be the most effective of the three alternatives tested, as it obtained high strength, combined with high ductility. Nevertheless, all the systems show great strength increment in relation to the non retrofitted T-beams, proving to be effective approaches to the flexural strengthening of RC beams.

Original language	English
Title of host publication	3rd International fib Congress and Exhibition, Incorporating the PCI Annual Convention and Bridge Conference: Think Globally, Build Locally, Proceedings
Publisher	Precast Prestressed Concrete Institute
ISBN (Electronic)	978-093704090-4
Publication status	Published - 1 Jan 2010
Event	3rd International fib Congress and Exhibition, Incorporating the PCI Annual Convention and Bridge Conference 2010 - Washington, United States Duration: 29 May 2010 → 2 Jun 2010

Conference

Conference	3rd International fib Congress and Exhibition, Incorporating the PCI Annual Convention and Bridge Conference 2010
Country	United States
City	Washington
Period	29/05/10 → 2/06/10

Keywords

Carbon
EBR
FRP composites
Glass
NSMR
Rehabilitation
Strengthening

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title = "Flexural behaviour of RC T-beams strengthened with different FRP materials",

abstract = "The strengthening of reinforced concrete structures with FRP materials has received a considerable increment in recent years due to the high strength-weight and stiffness-weight ratios of FRP compared to other materials. An experimental programme was conducted in order to analyse the behaviour of different structural solutions to strengthen reinforced concrete beams with FRP composites (EBR GFRP, EBR CFRP, NSRM-CFRP) and is described. The RC T beams had a 3m span by 0.3m height and were tested until rupture in a 4-point bending test system. The NSMR technique has proved to be the most effective of the three alternatives tested, as it obtained high strength, combined with high ductility. Nevertheless, all the systems show great strength increment in relation to the non retrofitted T-beams, proving to be effective approaches to the flexural strengthening of RC beams.",

keywords = "Carbon, EBR, FRP composites, Glass, NSMR, Rehabilitation, Strengthening",

author = "Tiago Carvalho and Carlos Chastre and Hugo Biscaia and Raquel Paula",

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Carvalho, T, Chastre, C , Biscaia, H & Paula, R 2010, Flexural behaviour of RC T-beams strengthened with different FRP materials. in 3rd International fib Congress and Exhibition, Incorporating the PCI Annual Convention and Bridge Conference: Think Globally, Build Locally, Proceedings. Precast Prestressed Concrete Institute, 3rd International fib Congress and Exhibition, Incorporating the PCI Annual Convention and Bridge Conference 2010, Washington, United States, 29/05/10.

Flexural behaviour of RC T-beams strengthened with different FRP materials. / Carvalho, Tiago; Chastre, Carlos ; Biscaia, Hugo; Paula, Raquel.

3rd International fib Congress and Exhibition, Incorporating the PCI Annual Convention and Bridge Conference: Think Globally, Build Locally, Proceedings. Precast Prestressed Concrete Institute, 2010.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AU - Carvalho, Tiago

AU - Chastre, Carlos

AU - Biscaia, Hugo

AU - Paula, Raquel

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N2 - The strengthening of reinforced concrete structures with FRP materials has received a considerable increment in recent years due to the high strength-weight and stiffness-weight ratios of FRP compared to other materials. An experimental programme was conducted in order to analyse the behaviour of different structural solutions to strengthen reinforced concrete beams with FRP composites (EBR GFRP, EBR CFRP, NSRM-CFRP) and is described. The RC T beams had a 3m span by 0.3m height and were tested until rupture in a 4-point bending test system. The NSMR technique has proved to be the most effective of the three alternatives tested, as it obtained high strength, combined with high ductility. Nevertheless, all the systems show great strength increment in relation to the non retrofitted T-beams, proving to be effective approaches to the flexural strengthening of RC beams.

AB - The strengthening of reinforced concrete structures with FRP materials has received a considerable increment in recent years due to the high strength-weight and stiffness-weight ratios of FRP compared to other materials. An experimental programme was conducted in order to analyse the behaviour of different structural solutions to strengthen reinforced concrete beams with FRP composites (EBR GFRP, EBR CFRP, NSRM-CFRP) and is described. The RC T beams had a 3m span by 0.3m height and were tested until rupture in a 4-point bending test system. The NSMR technique has proved to be the most effective of the three alternatives tested, as it obtained high strength, combined with high ductility. Nevertheless, all the systems show great strength increment in relation to the non retrofitted T-beams, proving to be effective approaches to the flexural strengthening of RC beams.

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KW - FRP composites

KW - Glass

KW - NSMR

KW - Rehabilitation

KW - Strengthening

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