Modelling of damaged rc beams strengthened by fibre composite plates

Y. N. Ziraba; M. H. Baluchi; G. J. Al-sulaimanil; A. K. Azadt; A. M. Sharif; I. A. Basunbul

doi:10.1108/02644409510799811

Modelling of damaged rc beams strengthened by fibre composite plates

Y. N. Ziraba
, M. H. Baluchi
, G. J. Al-sulaimanil
, A. K. Azadt
, A. M. Sharif
, I. A. Basunbul

King Fahd University of Petroleum & Minerals

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

This paper presents a finite element model for analysis of damaged RC beams strengthened or repaired by externally bonding glass fibre reinforced plastics (GFRP) on the tension side of the beams. The salient features include: (i) the introduction of a thin, six-noded element to simulate behaviour of the concrete/epoxy glue/GFRP interface and (ii) a scheme of loading a virgin RC beam to a prescribed displacement to simulate damage, unloading and then reloading the damaged RC beam fortified by an externally bonded GFRP plate. Results are presented for RC beams repaired by plates of varying thickness and a transmutation of failure mode is noted from classical flexure for the case of external reinforcement in the form of thin GFRP plates to a unique concrete cover rip off failure for thicker GFRP plates and not predicted by the ACI shear strength formula for diagonal tension failure of unplated RC beams of similar geometry.

Original language	English
Pages (from-to)	619-640
Number of pages	22
Journal	Engineering Computations
Volume	12
Issue number	7
DOIs	https://doi.org/10.1108/02644409510799811
State	Published - 1 Jul 1995

Keywords

Composite plates
Fibre reinforcement
Glass fibre
RC beams

ASJC Scopus subject areas

Software
General Engineering
Computer Science Applications
Computational Theory and Mathematics

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10.1108/02644409510799811

Cite this

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title = "Modelling of damaged rc beams strengthened by fibre composite plates",

abstract = "This paper presents a finite element model for analysis of damaged RC beams strengthened or repaired by externally bonding glass fibre reinforced plastics (GFRP) on the tension side of the beams. The salient features include: (i) the introduction of a thin, six-noded element to simulate behaviour of the concrete/epoxy glue/GFRP interface and (ii) a scheme of loading a virgin RC beam to a prescribed displacement to simulate damage, unloading and then reloading the damaged RC beam fortified by an externally bonded GFRP plate. Results are presented for RC beams repaired by plates of varying thickness and a transmutation of failure mode is noted from classical flexure for the case of external reinforcement in the form of thin GFRP plates to a unique concrete cover rip off failure for thicker GFRP plates and not predicted by the ACI shear strength formula for diagonal tension failure of unplated RC beams of similar geometry.",

keywords = "Composite plates, Fibre reinforcement, Glass fibre, RC beams",

author = "Ziraba, \{Y. N.\} and Baluchi, \{M. H.\} and Al-sulaimanil, \{G. J.\} and Azadt, \{A. K.\} and Sharif, \{A. M.\} and Basunbul, \{I. A.\}",

year = "1995",

month = jul,

day = "1",

doi = "10.1108/02644409510799811",

language = "English",

volume = "12",

pages = "619--640",

journal = "Engineering Computations",

issn = "0264-4401",

publisher = "Emerald Group Publishing Ltd.",

number = "7",

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TY - JOUR

T1 - Modelling of damaged rc beams strengthened by fibre composite plates

AU - Ziraba, Y. N.

AU - Baluchi, M. H.

AU - Al-sulaimanil, G. J.

AU - Azadt, A. K.

AU - Sharif, A. M.

AU - Basunbul, I. A.

PY - 1995/7/1

Y1 - 1995/7/1

N2 - This paper presents a finite element model for analysis of damaged RC beams strengthened or repaired by externally bonding glass fibre reinforced plastics (GFRP) on the tension side of the beams. The salient features include: (i) the introduction of a thin, six-noded element to simulate behaviour of the concrete/epoxy glue/GFRP interface and (ii) a scheme of loading a virgin RC beam to a prescribed displacement to simulate damage, unloading and then reloading the damaged RC beam fortified by an externally bonded GFRP plate. Results are presented for RC beams repaired by plates of varying thickness and a transmutation of failure mode is noted from classical flexure for the case of external reinforcement in the form of thin GFRP plates to a unique concrete cover rip off failure for thicker GFRP plates and not predicted by the ACI shear strength formula for diagonal tension failure of unplated RC beams of similar geometry.

AB - This paper presents a finite element model for analysis of damaged RC beams strengthened or repaired by externally bonding glass fibre reinforced plastics (GFRP) on the tension side of the beams. The salient features include: (i) the introduction of a thin, six-noded element to simulate behaviour of the concrete/epoxy glue/GFRP interface and (ii) a scheme of loading a virgin RC beam to a prescribed displacement to simulate damage, unloading and then reloading the damaged RC beam fortified by an externally bonded GFRP plate. Results are presented for RC beams repaired by plates of varying thickness and a transmutation of failure mode is noted from classical flexure for the case of external reinforcement in the form of thin GFRP plates to a unique concrete cover rip off failure for thicker GFRP plates and not predicted by the ACI shear strength formula for diagonal tension failure of unplated RC beams of similar geometry.

KW - Composite plates

KW - Fibre reinforcement

KW - Glass fibre

KW - RC beams

UR - https://www.scopus.com/pages/publications/0042905089

U2 - 10.1108/02644409510799811

DO - 10.1108/02644409510799811

M3 - Article

AN - SCOPUS:0042905089

SN - 0264-4401

VL - 12

SP - 619

EP - 640

JO - Engineering Computations

JF - Engineering Computations

IS - 7

ER -

Modelling of damaged rc beams strengthened by fibre composite plates

Abstract

Keywords

ASJC Scopus subject areas

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