Reinforced Concrete Beams with Opening Strengthened using CFRP Sheets

This study explores the behavior of reinforced concrete beam with opening strengthened using CFRP sheets. The beams were deficient in bending and under-reinforced in order for the beams to fail in bending. Loaddeflection behavior and strain profile were observed besides the crack pattern and modes o...

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Main Authors: Ali, Noorwirdawati, Abdul Hamid, Noor Azlina, Salleh, Norhafizah, Abdullah, Siti Radziah, Jamellodin, Zalipah
Format: Article
Language:en
Published: UTHM 2019
Subjects:
Online Access:http://eprints.uthm.edu.my/6524/1/AJ%202020%20%28321%29.pdf
http://eprints.uthm.edu.my/6524/
https://doi.org/10.30880/ijie.2019.11.08.030
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author Ali, Noorwirdawati
Abdul Hamid, Noor Azlina
Salleh, Norhafizah
Abdullah, Siti Radziah
Jamellodin, Zalipah
author_facet Ali, Noorwirdawati
Abdul Hamid, Noor Azlina
Salleh, Norhafizah
Abdullah, Siti Radziah
Jamellodin, Zalipah
author_sort Ali, Noorwirdawati
building UTHM Library
collection Institutional Repository
content_provider Universiti Tun Hussein Onn Malaysia
content_source UTHM Institutional Repository
continent Asia
country Malaysia
description This study explores the behavior of reinforced concrete beam with opening strengthened using CFRP sheets. The beams were deficient in bending and under-reinforced in order for the beams to fail in bending. Loaddeflection behavior and strain profile were observed besides the crack pattern and modes of failure. A total of five (5) beams were casted and tested. One (1) beam was treated as control specimen, two (2) beams were reinforced concrete beams with square and circular opening respectively while the other two (2) beams were reinforced concrete beams with square and circular opening strengthened using CFRP sheets. For the strengthened beams, they were wrapped at three sides (U-wrap) of the beams with CFRP sheets. From the experimental results, it is observed that all beams fail in bending as expected. Beam with circular opening (un-strengthened) recorded the lowest ultimate load with 25.7 kN, a decreased for about 6.4% compared to control specimen. On the other hand, beams with circular opening strengthened using CFRP sheets recorded the highest ultimate load of 30.7 kN, which is an increased for about 11.9% compared to control specimen. The conclusion that can be drawn from this study is CFRP sheets can be used to increase the ultimate load of beam with the presence of opening.
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spelling my.uthm.eprints-65242022-02-28T06:40:26Z http://eprints.uthm.edu.my/6524/ Reinforced Concrete Beams with Opening Strengthened using CFRP Sheets Ali, Noorwirdawati Abdul Hamid, Noor Azlina Salleh, Norhafizah Abdullah, Siti Radziah Jamellodin, Zalipah TH1000-1725 Systems of building construction. Including fireproof construction, concrete construction This study explores the behavior of reinforced concrete beam with opening strengthened using CFRP sheets. The beams were deficient in bending and under-reinforced in order for the beams to fail in bending. Loaddeflection behavior and strain profile were observed besides the crack pattern and modes of failure. A total of five (5) beams were casted and tested. One (1) beam was treated as control specimen, two (2) beams were reinforced concrete beams with square and circular opening respectively while the other two (2) beams were reinforced concrete beams with square and circular opening strengthened using CFRP sheets. For the strengthened beams, they were wrapped at three sides (U-wrap) of the beams with CFRP sheets. From the experimental results, it is observed that all beams fail in bending as expected. Beam with circular opening (un-strengthened) recorded the lowest ultimate load with 25.7 kN, a decreased for about 6.4% compared to control specimen. On the other hand, beams with circular opening strengthened using CFRP sheets recorded the highest ultimate load of 30.7 kN, which is an increased for about 11.9% compared to control specimen. The conclusion that can be drawn from this study is CFRP sheets can be used to increase the ultimate load of beam with the presence of opening. UTHM 2019 Article PeerReviewed text en http://eprints.uthm.edu.my/6524/1/AJ%202020%20%28321%29.pdf Ali, Noorwirdawati and Abdul Hamid, Noor Azlina and Salleh, Norhafizah and Abdullah, Siti Radziah and Jamellodin, Zalipah (2019) Reinforced Concrete Beams with Opening Strengthened using CFRP Sheets. The International Journal of Integrated Engineering, 11 (8). pp. 303-312. ISSN 2229-838X https://doi.org/10.30880/ijie.2019.11.08.030
spellingShingle TH1000-1725 Systems of building construction. Including fireproof construction, concrete construction
Ali, Noorwirdawati
Abdul Hamid, Noor Azlina
Salleh, Norhafizah
Abdullah, Siti Radziah
Jamellodin, Zalipah
Reinforced Concrete Beams with Opening Strengthened using CFRP Sheets
title Reinforced Concrete Beams with Opening Strengthened using CFRP Sheets
title_full Reinforced Concrete Beams with Opening Strengthened using CFRP Sheets
title_fullStr Reinforced Concrete Beams with Opening Strengthened using CFRP Sheets
title_full_unstemmed Reinforced Concrete Beams with Opening Strengthened using CFRP Sheets
title_short Reinforced Concrete Beams with Opening Strengthened using CFRP Sheets
title_sort reinforced concrete beams with opening strengthened using cfrp sheets
topic TH1000-1725 Systems of building construction. Including fireproof construction, concrete construction
url http://eprints.uthm.edu.my/6524/1/AJ%202020%20%28321%29.pdf
http://eprints.uthm.edu.my/6524/
https://doi.org/10.30880/ijie.2019.11.08.030
url_provider http://eprints.uthm.edu.my/