Interfacial debonding failure for reinforced concrete beams strengthened with carbon-fibre-reinforced polymer strips-Reference-Cited by-同舟云学术

Interfacial debonding failure for reinforced concrete beams strengthened with carbon-fibre-reinforced polymer strips

Published:2009-01 Issue:1 Volume:36 Page:103-121
ISSN:0315-1468
Container-title:Canadian Journal of Civil Engineering
language:en
Short-container-title:Can. J. Civ. Eng.

Author:

Bakay Ryan¹²³,Sayed-Ahmed Ezzeldin Yazeed¹²³,Shrive Nigel Graham¹²³

Affiliation:

1. Read Jones Christofferson, 1816 Crowchild Trail NW, Calgary, AB T2M 3Y7, Canada.

2. Structural Engineering Department, Ain Shams University, Cairo 11517, Egypt.

3. Civil Engineering Department, University of Calgary, Calgary, AB T2N 1N4, Canada.

Abstract

Rehabilitation of structures using fibre-reinforced polymers (FRPs) has become a preferred strengthening technique. Crack-induced debonding failure has been repeatedly recorded when using fibre-reinforced polymer (FRP) laminates to strengthen reinforced concrete (RC) beams and (or) slabs in flexure. A testing programme has been performed to determine the effect of the concrete compressive strength and the amount of shear reinforcement on the interfacial debonding. The ultimate strain at failure in the bonded laminates (usage efficiency) and the strain compatibility between the laminates and the concrete sections have been investigated. The current design methods for reinforced concrete members strengthened with FRP do not explicitly consider the interfacial debonding failure; using the results of the experimental programme, the applicability and limitations of these design methods are identified. New design procedures are proposed and compared with the experimental programme results and the currently adopted procedures.

Publisher

Canadian Science Publishing

Subject

General Environmental Science,Civil and Structural Engineering

Link

http://www.nrcresearchpress.com/doi/pdf/10.1139/L08-096

Reference16 articles.

1. Bakay, R. 2003. Midspan shear debonding of CFRP laminated reinforced concrete beams. M.Sc. thesis, Civil Engineering Department, University of Calgary, Calgary, Alta.

2. Anchorage Strength Models for FRP and Steel Plates Bonded to Concrete

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