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External strengthening of reinforced concrete beam with opening by bamboo fiber reinforced composites

This paper presents the structural behaviour of reinforced concrete (RC) beams with and without openings strengthened externally with bamboo fiber reinforced composite (BFRC) plates in shear and flexure, respectively. Mechanical properties include tensile and flexural strength of epoxy, polyester an...

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Main Authors:	Chin, Siew Choo, Tee, Kong Fah, Tong, Foo Sheng, Doh, Shu Ing, Jolius, Gimbun
Format:	Article
Language:	English
Published:	Springer Nature 2020
Subjects:	TA Engineering (General). Civil engineering (General) TH Building construction TP Chemical technology
Online Access:	http://umpir.ump.edu.my/id/eprint/29953/1/Chin2020_Article_ExternalStrengtheningOfReinfor.pdf http://umpir.ump.edu.my/id/eprint/29953/ https://doi.org/10.1617/s11527-020-01572-y https://doi.org/10.1617/s11527-020-01572-y
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spelling	my.ump.umpir.299532021-10-27T04:03:06Z http://umpir.ump.edu.my/id/eprint/29953/ External strengthening of reinforced concrete beam with opening by bamboo fiber reinforced composites Chin, Siew Choo Tee, Kong Fah Tong, Foo Sheng Doh, Shu Ing Jolius, Gimbun TA Engineering (General). Civil engineering (General) TH Building construction TP Chemical technology This paper presents the structural behaviour of reinforced concrete (RC) beams with and without openings strengthened externally with bamboo fiber reinforced composite (BFRC) plates in shear and flexure, respectively. Mechanical properties include tensile and flexural strength of epoxy, polyester and vinyl-ester based BFRC plates with 0%, 10%, 20%, 30% and 40% fiber volume fractions were evaluated. A total of fourteen beams were cast to evaluate the structural behaviour of RC beams strengthened with BFRC plates. All the beams were tested to failure under four-point bending. The results presented were in terms of load–deflection behaviour, failure mode and crack pattern. A comparison was also made between the performance of epoxy, polyester and vinyl-ester based BFRC plates in shear strengthening of RC beams with openings. Results revealed that the presence of openings in the shear zone reduced the original beam capacity of the control beam to about 52–55%. Shear strengthening of RC beams with openings using epoxy based BFRC plates showed significant improvement in regaining the beam structural capacity to approximately 32–36% higher than the un-strengthened beams. Meanwhile, strengthening of RC beams in flexure with epoxy based BFRC plates managed to regain the beam original capacity up to 98% of the control beam. Bamboo fiber composite reinforced with epoxy, polyester and vinyl-ester resins of 40% fiber volume fraction managed to regain the beam original capacity up to 82%. It was found that BFRC plates could divert and mitigate the formation of cracks away from the strengthened region as well as improved the beam ductility. Springer Nature 2020-12 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/29953/1/Chin2020_Article_ExternalStrengtheningOfReinfor.pdf Chin, Siew Choo and Tee, Kong Fah and Tong, Foo Sheng and Doh, Shu Ing and Jolius, Gimbun (2020) External strengthening of reinforced concrete beam with opening by bamboo fiber reinforced composites. Materials and Structures, 53 (6). pp. 1-12. ISSN 1359-5997 https://doi.org/10.1617/s11527-020-01572-y https://doi.org/10.1617/s11527-020-01572-y
institution	Universiti Malaysia Pahang
building	UMP Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Malaysia Pahang
content_source	UMP Institutional Repository
url_provider	http://umpir.ump.edu.my/
language	English
topic	TA Engineering (General). Civil engineering (General) TH Building construction TP Chemical technology
spellingShingle	TA Engineering (General). Civil engineering (General) TH Building construction TP Chemical technology Chin, Siew Choo Tee, Kong Fah Tong, Foo Sheng Doh, Shu Ing Jolius, Gimbun External strengthening of reinforced concrete beam with opening by bamboo fiber reinforced composites
description	This paper presents the structural behaviour of reinforced concrete (RC) beams with and without openings strengthened externally with bamboo fiber reinforced composite (BFRC) plates in shear and flexure, respectively. Mechanical properties include tensile and flexural strength of epoxy, polyester and vinyl-ester based BFRC plates with 0%, 10%, 20%, 30% and 40% fiber volume fractions were evaluated. A total of fourteen beams were cast to evaluate the structural behaviour of RC beams strengthened with BFRC plates. All the beams were tested to failure under four-point bending. The results presented were in terms of load–deflection behaviour, failure mode and crack pattern. A comparison was also made between the performance of epoxy, polyester and vinyl-ester based BFRC plates in shear strengthening of RC beams with openings. Results revealed that the presence of openings in the shear zone reduced the original beam capacity of the control beam to about 52–55%. Shear strengthening of RC beams with openings using epoxy based BFRC plates showed significant improvement in regaining the beam structural capacity to approximately 32–36% higher than the un-strengthened beams. Meanwhile, strengthening of RC beams in flexure with epoxy based BFRC plates managed to regain the beam original capacity up to 98% of the control beam. Bamboo fiber composite reinforced with epoxy, polyester and vinyl-ester resins of 40% fiber volume fraction managed to regain the beam original capacity up to 82%. It was found that BFRC plates could divert and mitigate the formation of cracks away from the strengthened region as well as improved the beam ductility.
format	Article
author	Chin, Siew Choo Tee, Kong Fah Tong, Foo Sheng Doh, Shu Ing Jolius, Gimbun
author_facet	Chin, Siew Choo Tee, Kong Fah Tong, Foo Sheng Doh, Shu Ing Jolius, Gimbun
author_sort	Chin, Siew Choo
title	External strengthening of reinforced concrete beam with opening by bamboo fiber reinforced composites
title_short	External strengthening of reinforced concrete beam with opening by bamboo fiber reinforced composites
title_full	External strengthening of reinforced concrete beam with opening by bamboo fiber reinforced composites
title_fullStr	External strengthening of reinforced concrete beam with opening by bamboo fiber reinforced composites
title_full_unstemmed	External strengthening of reinforced concrete beam with opening by bamboo fiber reinforced composites
title_sort	external strengthening of reinforced concrete beam with opening by bamboo fiber reinforced composites
publisher	Springer Nature
publishDate	2020
url	http://umpir.ump.edu.my/id/eprint/29953/1/Chin2020_Article_ExternalStrengtheningOfReinfor.pdf http://umpir.ump.edu.my/id/eprint/29953/ https://doi.org/10.1617/s11527-020-01572-y https://doi.org/10.1617/s11527-020-01572-y
_version_	1715189867671977984
score	13.211869

External strengthening of reinforced concrete beam with opening by bamboo fiber reinforced composites

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