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112714

THEORETICAL INVESTIGATION ON FLEXURAL PERFORMANCE OF RC BEAMS STRENGTHENED EXTERNALLY BY CFRP

Article

Last updated: 23 Jan 2023

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Subjects

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Tags

Civil Engineering: structural, Geotechnical, reinforced concrete and s…nd sanitary engineering, Hydraulic, Railway, construction Management.

Abstract

In this paper an analytical model is presented for reinforced concrete beams externally reinforced with carbon fiber reinforced polymer (CFRP) laminates using finite element method adopted by ANSYS. The finite element models are developed using a smeared cracking approach for concrete and three dimensional layered elements for the CFRP composites. In particular, attaching unidirectional CFRP to the tension face of RC beams has provided an increase in the stiffness and load capacity of the structure. However, due to the brittle nature of unidirectional CFRP, the ductility of the beam decreases. Consequently, the safety of the structure is compromised, due to the reduction in ductility. The purpose of this research is to investigate the behavior of normal and high strength reinforced concrete beams strengthened with CFRP sheets. The major test parameters included the grade of concrete, the different dimensions of the beam and the tensile reinforcement ratio. Furthermore, change in the strength, ductility and toughness of the beams, as the grade of concrete, the dimensions of the beam and tensile reinforcement bar ratios are altered, are investigated. Fifty-four reinforced concrete beams were modeled and analyzed up to failure.

DOI

10.21608/jesaun.2012.112714

Keywords

Finite Element Model, CFRP, High strength concrete, Ductility, Strength, Toughness

Authors

First Name

Khairy Hassan

Last Name

Abdelkareem

MiddleName

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Affiliation

Professors, Civil Eng. Dept., Assiut University

Email

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City

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Orcid

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First Name

Fayez Kaiser

Last Name

Abdelseed

MiddleName

-

Affiliation

Professors, Civil Eng. Dept., Assiut University

Email

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City

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Orcid

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First Name

Mohamed Omar

Last Name

Sayed

MiddleName

-

Affiliation

Assistant Researcher, Construction Research Institute, National Water Research Center, Egypt

Email

-

City

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Orcid

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Volume

40

Article Issue

No 1

Related Issue

16626

Issue Date

2012-01-01

Receive Date

2011-10-23

Publish Date

2012-01-01

Page Start

67

Page End

91

Print ISSN

1687-0530

Online ISSN

2356-8550

Article File

JESAUN_Volume 40_Issue No 1_Pages 67-91.pdf

PDF . 930.9kB

Link

https://jesaun.journals.ekb.eg/article_112714.html

Detail API

https://jesaun.journals.ekb.eg/service?article_code=112714

Order

5

Type

Research Paper

Type Code

1,438

Publication Type

Journal

Publication Title

JES. Journal of Engineering Sciences

Publication Link

https://jesaun.journals.ekb.eg/

MainTitle

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Details

Type

Article

Created At

23 Jan 2023