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125549

EFFICIENCY OF INTERNAL STRENGTHENING R.C BEAMS WITH RECTANGULAR OPENINGS IN SHEAR ZONE BY USING STEEL PLATES

Article

Last updated: 23 Jan 2023

OverviewSimilar Items

Subjects

-

Tags

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

Abstract

The provision of transverse openings in floor beams to facilitate the passage of utility pipes and service ducts results not only in a more systematic layout of pipes and ducts; but also translates into substantial economic savings in the construction of a multi-storey building. Over the past several decades, many researchers exerted great efforts to predict and interpret the behavior of beams with web openings [3-9]. They recommended convenient methods for the design of such beams. External strengthening by using external steel plates or external CFRP laminates will be a satisfactory method in the case if it is required to provide new opening in existing beams. In this research it was suggested to use internal steel plates to improve the efficiency of beams with opening. Therefore, twelve R.C beams were tested under static loading up to failure; eleven of them were fabricated with rectangular opening through the web in shear zone while the remaining beam had a solid web. Internal steel plates around the opening were used in strengthening them. The effect of internal steel plate's thickness, and configuration, horizontal steel plate length and concrete grade is investigated. The pattern of cracks and modes of failure were observed. The mid span deflection, the inner edge of opening deflection and the difference between deflections of the two opening edges were measured. The crack and ultimate load were recorded. The results were studied and given in shape of plates, tables and curves.

DOI

10.21608/jesaun.2010.125549

Keywords

perforated R.C Beams, Concrete Strength, pattern of cracks, Deflections, steel plates and strengthening of web openings

Authors

First Name

Nageh M.

Last Name

Ali

MiddleName

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Affiliation

Demonstrator, Civil Eng. Dept., Assiut University

Email

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City

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Orcid

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First Name

Mohamed M.

Last Name

Ahmed

MiddleName

-

Affiliation

Associate Professor of Structural Eng., Civil Eng. Dept., Assiut University

Email

-

City

-

Orcid

-

First Name

Mohamed Farag

Last Name

A.

MiddleName

-

Affiliation

Professor of Structural Eng., Civil Eng. Dept., Assiut University

Email

-

City

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Orcid

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First Name

Abd Elrahman

Last Name

Megahid

MiddleName

-

Affiliation

Professor of Structural Eng, Civil Eng. Dept., Assiut University.

Email

-

City

-

Orcid

-

Volume

38

Article Issue

No 4

Related Issue

16876

Issue Date

2010-07-01

Receive Date

2010-05-11

Publish Date

2010-07-01

Page Start

929

Page End

947

Print ISSN

1687-0530

Online ISSN

2356-8550

Article File

JESAUN_Volume 38_Issue No 4_Pages 929-947.pdf

PDF . 594.8kB

Link

https://jesaun.journals.ekb.eg/article_125549.html

Detail API

https://jesaun.journals.ekb.eg/service?article_code=125549

Order

4

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