Behaviour of RC Beams with CFRP-Strengthened Openings

A detailed investigation was conducted to study the behaviour of reinforced concrete (RC) beams with large openings strengthened by externally bonded carbon fibre-reinforced polymer (CFRP) laminates. A total of six simply supported beams consisting of two solid beams and four beams with openings wer...

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Main Authors: Chin, Siew Choo, Shafiq, Nasir, Nuruddin, Muhd Fadhil
Format: Article
Language:English
Published: Ernst & Sohn Verlag 2016
Subjects:
Online Access:http://umpir.ump.edu.my/id/eprint/12496/
http://umpir.ump.edu.my/id/eprint/12496/1/fkasa-2016-siew-Behaviour%20of%20RC%20Beams%20with%20Openings%20Strengthened.pdf
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author Chin, Siew Choo
Shafiq, Nasir
Nuruddin, Muhd Fadhil
author_facet Chin, Siew Choo
Shafiq, Nasir
Nuruddin, Muhd Fadhil
author_sort Chin, Siew Choo
building UMP Institutional Repository
collection Online Access
description A detailed investigation was conducted to study the behaviour of reinforced concrete (RC) beams with large openings strengthened by externally bonded carbon fibre-reinforced polymer (CFRP) laminates. A total of six simply supported beams consisting of two solid beams and four beams with openings were cast and tested under four-point bending. Each beam had a crosssection of 120 × 300 mm and length of 2000 mm. Each beam had a large opening placed symmetrically at mid-span. Test parameters included the opening shape and size as well as the strengthening configuration for the CFRP laminates. The study was conducted by way of both experimental testing and finite element analysis. The experimental results show that including a large opening at mid-span reduces the beam capacity to about 50 %. In the experimental results, strength gain due to strengthening with CFRP laminates was in the range 80–90 %. The finite element and experimental results were compared. Keywords: large opening, strengthening, CFRP, reinforced concrete beam
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publishDate 2016
publisher Ernst & Sohn Verlag
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spelling ump-124962018-02-21T06:20:09Z http://umpir.ump.edu.my/id/eprint/12496/ Behaviour of RC Beams with CFRP-Strengthened Openings Chin, Siew Choo Shafiq, Nasir Nuruddin, Muhd Fadhil TA Engineering (General). Civil engineering (General) A detailed investigation was conducted to study the behaviour of reinforced concrete (RC) beams with large openings strengthened by externally bonded carbon fibre-reinforced polymer (CFRP) laminates. A total of six simply supported beams consisting of two solid beams and four beams with openings were cast and tested under four-point bending. Each beam had a crosssection of 120 × 300 mm and length of 2000 mm. Each beam had a large opening placed symmetrically at mid-span. Test parameters included the opening shape and size as well as the strengthening configuration for the CFRP laminates. The study was conducted by way of both experimental testing and finite element analysis. The experimental results show that including a large opening at mid-span reduces the beam capacity to about 50 %. In the experimental results, strength gain due to strengthening with CFRP laminates was in the range 80–90 %. The finite element and experimental results were compared. Keywords: large opening, strengthening, CFRP, reinforced concrete beam Ernst & Sohn Verlag 2016-03-09 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/12496/1/fkasa-2016-siew-Behaviour%20of%20RC%20Beams%20with%20Openings%20Strengthened.pdf Chin, Siew Choo and Shafiq, Nasir and Nuruddin, Muhd Fadhil (2016) Behaviour of RC Beams with CFRP-Strengthened Openings. Structural Concrete, 17 (1). pp. 32-43. ISSN 1751-7648. (Published) http://dx.doi.org/10.1002/suco.201400111 DOI: 10.1002/suco.201400111
spellingShingle TA Engineering (General). Civil engineering (General)
Chin, Siew Choo
Shafiq, Nasir
Nuruddin, Muhd Fadhil
Behaviour of RC Beams with CFRP-Strengthened Openings
title Behaviour of RC Beams with CFRP-Strengthened Openings
title_full Behaviour of RC Beams with CFRP-Strengthened Openings
title_fullStr Behaviour of RC Beams with CFRP-Strengthened Openings
title_full_unstemmed Behaviour of RC Beams with CFRP-Strengthened Openings
title_short Behaviour of RC Beams with CFRP-Strengthened Openings
title_sort behaviour of rc beams with cfrp-strengthened openings
topic TA Engineering (General). Civil engineering (General)
url http://umpir.ump.edu.my/id/eprint/12496/
http://umpir.ump.edu.my/id/eprint/12496/
http://umpir.ump.edu.my/id/eprint/12496/
http://umpir.ump.edu.my/id/eprint/12496/1/fkasa-2016-siew-Behaviour%20of%20RC%20Beams%20with%20Openings%20Strengthened.pdf