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112905

Structural Performance of Concrete Beams Reinforced with CFRP Rods or Hybrid Reinforcement

Article

Last updated: 23 Jan 2023

Subjects

-

Tags

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

Abstract

Fiber Reinforced Polymer (FRP) rods; such as Carbon Fiber Reinforced Polymer rods (CFRP), are becoming the new wave of the future as a main reinforcement in concrete structures. Beams reinforced with this reinforcement had a reduction in ductility and stiffness. To improve the structural performance of such beams hybrid reinforcement; i.e. a combination of steel bars and CFRP rods have been proposed. This experimental study aims to throw a light on the flexural behavior of concrete beams reinforced with CFRP rods only and hybrid reinforcement. Eighteen concrete beams reinforced with different types and ratios of reinforcement (steel bars, CFRP rods or hybrid) were tested under mid span load up to failure. Pattern, width and spacing of cracks, modes of failure were observed, cracking and ultimate loads were recorded, deflections, and strains were measured. A comprehensive discussion for the obtained results was undertaken. Cracking load, ultimate load, mid span deflection and crack width for the tested beams were also theoretically predicted. A comparison between the predicted values with the corresponding experimental results was also given. An adequate level of ductility and stiffness in hybrid reinforced members was observed. Finally the conclusions and recommendations that are useful for the structural engineers in this concern are drawn.

DOI

10.21608/jesaun.2007.112905

Keywords

R.C beams, FRP rods, Carbon Fiber Rods, deflection, Cracking, Ductility, hybrid reinforcement

Authors

First Name

Hosny

Last Name

M. Soghair

MiddleName

-

Affiliation

Civil Engineering Department, Faculty of Engineering, Assiut University, Assiut, Egypt

Email

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City

-

Orcid

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First Name

Mahmoud

Last Name

H. Ahmed

MiddleName

-

Affiliation

Civil Engineering Department, Faculty of Engineering, Assiut University, Assiut, Egypt

Email

-

City

-

Orcid

-

First Name

Mohamed

Last Name

M. Ahmed

MiddleName

-

Affiliation

Civil Engineering Department, Faculty of Engineering, Assiut University, Assiut, Egypt

Email

-

City

-

Orcid

-

First Name

Zakaria

Last Name

H. Awadallah

MiddleName

-

Affiliation

Civil Engineering Department, Faculty of Engineering, AL-AZHAR University, Qena, Egypt

Email

-

City

-

Orcid

-

Volume

35

Article Issue

No 3

Related Issue

16733

Issue Date

2007-05-01

Receive Date

2007-04-08

Publish Date

2007-05-01

Page Start

645

Page End

663

Print ISSN

1687-0530

Online ISSN

2356-8550

Link

https://jesaun.journals.ekb.eg/article_112905.html

Detail API

https://jesaun.journals.ekb.eg/service?article_code=112905

Order

3

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