Strengthening of RC beams: Some experimental findings

H. Y. Leung

doi:10.1108/02630800210456823

Strengthening of RC beams: Some experimental findings

H. Y. Leung

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

10 Citations (Scopus)

Abstract

This paper aims to study the effect of external glass fibre reinforced polymer (GFRP) plates on the flexural and shear behaviour of structurally deficient reinforced concrete (RC) beams, a total of ten 180mm×250mm×2,500mm beams, including over-designed, unplated under-designed and plated under-designed, were tested under four-point bending condition. Experimental results indicate that the use of GFRP plates enhances the strength and deformation capacity of RC beams by altering their failure modes. Application of side plates on shear-deficient RC beams appears to be more effective than using bottom plates on flexure-deficient RC beams. However, without any improvement of concrete compressive capacity, additional shear capacities provided to the beams under the action of side plates increase the likelihood of beam failure by concrete crushing. Simultaneous use of bottom and side plates on flexural- and shear-deficient RC beams may result in reduced deflection. © 2002, MCB UP Limited

Original language	English
Pages (from-to)	173-181
Journal	Structural Survey
Volume	20
Issue number	5
DOIs	https://doi.org/10.1108/02630800210456823
Publication status	Published - 1 Dec 2002
Externally published	Yes

Bibliographical note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

Research Keywords

Building materials
Buildings
Concrete
Steel

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title = "Strengthening of RC beams: Some experimental findings",

abstract = "This paper aims to study the effect of external glass fibre reinforced polymer (GFRP) plates on the flexural and shear behaviour of structurally deficient reinforced concrete (RC) beams, a total of ten 180mm×250mm×2,500mm beams, including over-designed, unplated under-designed and plated under-designed, were tested under four-point bending condition. Experimental results indicate that the use of GFRP plates enhances the strength and deformation capacity of RC beams by altering their failure modes. Application of side plates on shear-deficient RC beams appears to be more effective than using bottom plates on flexure-deficient RC beams. However, without any improvement of concrete compressive capacity, additional shear capacities provided to the beams under the action of side plates increase the likelihood of beam failure by concrete crushing. Simultaneous use of bottom and side plates on flexural- and shear-deficient RC beams may result in reduced deflection. {\textcopyright} 2002, MCB UP Limited",

keywords = "Building materials, Buildings, Concrete, Steel",

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TY - JOUR

T1 - Strengthening of RC beams

T2 - Some experimental findings

AU - Leung, H. Y.

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

PY - 2002/12/1

Y1 - 2002/12/1

N2 - This paper aims to study the effect of external glass fibre reinforced polymer (GFRP) plates on the flexural and shear behaviour of structurally deficient reinforced concrete (RC) beams, a total of ten 180mm×250mm×2,500mm beams, including over-designed, unplated under-designed and plated under-designed, were tested under four-point bending condition. Experimental results indicate that the use of GFRP plates enhances the strength and deformation capacity of RC beams by altering their failure modes. Application of side plates on shear-deficient RC beams appears to be more effective than using bottom plates on flexure-deficient RC beams. However, without any improvement of concrete compressive capacity, additional shear capacities provided to the beams under the action of side plates increase the likelihood of beam failure by concrete crushing. Simultaneous use of bottom and side plates on flexural- and shear-deficient RC beams may result in reduced deflection. © 2002, MCB UP Limited

AB - This paper aims to study the effect of external glass fibre reinforced polymer (GFRP) plates on the flexural and shear behaviour of structurally deficient reinforced concrete (RC) beams, a total of ten 180mm×250mm×2,500mm beams, including over-designed, unplated under-designed and plated under-designed, were tested under four-point bending condition. Experimental results indicate that the use of GFRP plates enhances the strength and deformation capacity of RC beams by altering their failure modes. Application of side plates on shear-deficient RC beams appears to be more effective than using bottom plates on flexure-deficient RC beams. However, without any improvement of concrete compressive capacity, additional shear capacities provided to the beams under the action of side plates increase the likelihood of beam failure by concrete crushing. Simultaneous use of bottom and side plates on flexural- and shear-deficient RC beams may result in reduced deflection. © 2002, MCB UP Limited

KW - Building materials

KW - Buildings

KW - Concrete

KW - Steel

UR - https://www.scopus.com/pages/publications/84986043610

UR - https://www.scopus.com/pages/publications/84986043610#tab=impact

U2 - 10.1108/02630800210456823

DO - 10.1108/02630800210456823

M3 - RGC 21 - Publication in refereed journal

SN - 0263-080X

VL - 20

SP - 173

EP - 181

JO - Structural Survey

JF - Structural Survey

IS - 5

ER -

Strengthening of RC beams: Some experimental findings

Abstract

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Research Keywords

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