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114499

SHEAR STRENGTHENING OF R. C. T- BEAMS BY MEANS OF CFRP SHEETS

Article

Last updated: 23 Jan 2023

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Subjects

-

Tags

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

Abstract

This research aimed to experimentally investigate the contribution of bonded web carbon fiber reinforced polymer (CFRP) sheets to the shear strength of reinforced concrete (RC) T-beams. Two strengthening techniques using CFRP strips were applied along the shear-span zone: the first one is vertical U-jacket and the later is vertical strips bonded to the beam sides only. Fibers of both U-jacket and side sheets were vertically oriented (θ = 90˚). Test results showed that the strengthening technique with U-jacket CFRP sheets improved the shear strength particularly. Three mechanisms of failure were recognized for the tested beams depending upon the end condition of the bonded CFRP sheet. Although the failure mode for the different beams was a brittle one, the strengthened beams provided with U-jacket CFRP sheets showed more or less a ductile behavior at a higher loading level up to a load level just before failure. As a consequence, these beams approved an acceptable enhancement in the structural ductility. Moreover, the obtained results concerning the strains induced in the CFRP sheets are used to study the applicability of the mathematical model suggested by the ACI code [1, 2].

DOI

10.21608/jesaun.2012.114499

Keywords

Carbon Fiber Reinforced Polymer (CFRP), Delamination, strengthening, anchorage

Authors

First Name

Omar

Last Name

Farghal

MiddleName

Ahmed

Affiliation

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

Email

omar_farghal222@yahoo.com

City

Assiut

Orcid

-

Volume

40

Article Issue

No 5

Related Issue

16871

Issue Date

2012-09-01

Receive Date

2012-04-14

Publish Date

2012-09-01

Page Start

1,293

Page End

1,307

Print ISSN

1687-0530

Online ISSN

2356-8550

Article File

JESAUN_Volume 40_Issue No 5_Pages 1293-1307.pdf

PDF . 985.8kB

Link

https://jesaun.journals.ekb.eg/article_114499.html

Detail API

https://jesaun.journals.ekb.eg/service?article_code=114499

Order

2

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

-

Details

Type

Article

Created At

23 Jan 2023