This paper presents a rational and relatively simple method for calculating the deflections of reinforced concrete (RC) beams strengthened with fibre-reinforced polymers (FRP) plates. Basically, RC beams strengthened with externally bonded FRP plates to the tension face can display flexural strength several times greater than their original strength. An idealised load–deflection curve for a RC beam strengthened with externally bonded FRP plates can be separated into four different linear stages. Based on these stages, this project is developed from linear elastic theory and analyses of the moment–curvature relationships, which are assumed to be linear. An improved analytical procedure for calculating the deflection of the plates strengthened with FRP is developed. The analytical expressions are verified by comparisons with some experimental and American Concrete Institute (ACI) results in the literature. The analytical results correlated well with the experimental results.
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December 2003
Research Article|
December 01 2003
Development of deflection equations using moment–curvature relationships for reinforced concrete beams strengthened with fibre-reinforced polymer (FRP) plates Available to Purchase
M. Faruqi;
M. Faruqi
*
MSC 194, Department of Civil Engineering, Texas A&M University
Kingsville, TX 78363, USA
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C. C. Wu;
C. C. Wu
*
MSC 194, Department of Civil Engineering, Texas A&M University
Kingsville, TX 78363, USA
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F. Benson
F. Benson
*
MSC 194, Department of Civil Engineering, Texas A&M University
Kingsville, TX 78363, USA
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Publisher: Emerald Publishing
Received:
October 30 2002
Revision Received:
April 29 2003
Accepted:
June 04 2003
Online ISSN: 1751-763X
Print ISSN: 0024-9831
© 2003 Thomas Telford Ltd
2003
Magazine of Concrete Research (2003) 55 (6): 549–557.
Article history
Received:
October 30 2002
Revision Received:
April 29 2003
Accepted:
June 04 2003
Citation
Faruqi M, Wu CC, Benson F (2003), "Development of deflection equations using moment–curvature relationships for reinforced concrete beams strengthened with fibre-reinforced polymer (FRP) plates". Magazine of Concrete Research, Vol. 55 No. 6 pp. 549–557, doi: https://doi.org/10.1680/macr.2003.55.6.549
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