Beta
316916

Repair Of Continuous Beams Pre-Damaged By Corrosion In Sagging Regions With C-Frcm Composites

Article

Last updated: 05 Jan 2025

Subjects

-

Tags

Reinforced Concrete

Abstract

Numerical models were developed to simulate the nonlinear structural behavior of flexure-deficient continuous reinforced concrete (RC) beams repaired with carbon fabric-reinforced cementitious matrix (C-FRCM) composites. Laboratory tests of large-scale continuous RC beams were conducted to validate predictions of the numerical models. A parametric study was performed to examine the effect of varying the elastic modulus of the fabric and the bonding condition at the fabric-mortar interface on the flexural response. Predictions of the numerical models were in good agreement with those obtained from the experiments. The difference between the predicted and experimental load capacities was within 10%. Results of the numerical analysis indicated that a 25% corrosion in the middle third of the sagging regions reduced the load capacity by 14%. The C-FRCM repair solution fully restored the original load capacity of the beam model. The use of the design value of the fabric's elastic modulus rather than the nominal value resulted in a numerical prediction closer to the response obtained from the experiment. The inclusion of a bond-slip law between the fabric and mortar in the numerical analysis was crucial to simulate the behavior of the corroded-repaired beam with good accuracy.

DOI

10.21608/asge.2023.218477.1062

Keywords

Concrete, Corrosion, flexure, FRCM, repair

Authors

First Name

Tamer

Last Name

El-Maaddawy

MiddleName

-

Affiliation

Professor of structural engineering, College of Engineering, United Arab Emirates University, Al Ain, Abu Dhabi.

Email

tamer.maaddawy@uaeu.ac.ae

City

Al Ain, Abu Dhabi

Orcid

-

First Name

Youssef

Last Name

elmezayen

MiddleName

-

Affiliation

College of Engineering, UAE University, UAE

Email

202090223@uaeu.ac.ae

City

-

Orcid

-

Volume

07

Article Issue

01

Related Issue

42378

Issue Date

2023-02-01

Receive Date

2023-06-18

Publish Date

2023-02-01

Page Start

29

Page End

36

Print ISSN

2785-9509

Online ISSN

2812-5142

Link

https://asge.journals.ekb.eg/article_316916.html

Detail API

https://asge.journals.ekb.eg/service?article_code=316916

Order

316,916

Type

Original Article

Type Code

2,140

Publication Type

Journal

Publication Title

International Journal of Advances in Structural and Geotechnical Engineering

Publication Link

https://asge.journals.ekb.eg/

MainTitle

Repair Of Continuous Beams Pre-Damaged By Corrosion In Sagging Regions With C-Frcm Composites

Details

Type

Article

Created At

30 Dec 2024