Strengthening of reinforced concrete deep beams having large square openings in shear zone with carbon fiber reinforced polymer (CFRP) wrap

Typically, the reinforced concrete (RC) deep beam with large openings are facing some severe problems such as the interruption of natural load transfer by concrete struts acting in compression which can cause an intensive reduction in strength; and the clearly visible cracks in serviceability condit...

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Main Author:	Ng, Kin Mun
Format:	Undergraduates Project Papers
Language:	English English English
Published:	2015
Subjects:	TA Engineering (General). Civil engineering (General)
Online Access:	http://umpir.ump.edu.my/id/eprint/12242/ http://umpir.ump.edu.my/id/eprint/12242/ http://umpir.ump.edu.my/id/eprint/12242/1/FKASA%20-%20NG%20KIN%20MUN%20%28CD9234%29.pdf http://umpir.ump.edu.my/id/eprint/12242/6/FKASA%20-%20NG%20KIN%20MUN%20%28CD9234%29%20-%20CHAP%201.pdf http://umpir.ump.edu.my/id/eprint/12242/13/FKASA%20-%20NG%20KIN%20MUN%20%28CD9234%29%20-%20CHAP%203.pdf

id	ump-12242
recordtype	eprints
spelling	ump-122422016-03-17T06:43:02Z http://umpir.ump.edu.my/id/eprint/12242/ Strengthening of reinforced concrete deep beams having large square openings in shear zone with carbon fiber reinforced polymer (CFRP) wrap Ng, Kin Mun TA Engineering (General). Civil engineering (General) Typically, the reinforced concrete (RC) deep beam with large openings are facing some severe problems such as the interruption of natural load transfer by concrete struts acting in compression which can cause an intensive reduction in strength; and the clearly visible cracks in serviceability conditions. The CFRP has become an alternative solution to this issue and being extensively used as an external reinforcement to resolve the strength requirements in structural systems due to extremely strong yet light weight, outstanding fatigue properties, excellent corrosion resistance and easy yet efficient application on concrete. This experimental study is focuses on the investigation of the effect of CFRP wrap in strengthening RC deep beams with large square openings located in shear zone. Three approaches are under consideration; the first is the determination of natural load transfer in normal deep beam without opening, the second is the large square openings in deep beam without CFRP strengthening, and the third is the large square openings in deep beam with CFRP attached around the openings. A total of four RC deep beams which included a solid RC control beam, a deep beam with two large square openings, and two beams with two large square openings strengthened by using CFRP strips in different strengthening configurations, were tested to failure under four point loading to determine the relative structural behaviour such as ultimate load, failure mode, crack patterns, and load deflection behaviour. All RC deep beams were designed in a dimension of 120 x 600 mm and 2400 mm in length. The width and height of large square openings were in a dimension of 270 x 270 mm and located 300 mm from the edge of the deep beam. The loading point and support were located at 800 mm and 300 mm from the edge of the deep beam, respectively. RC deep beam with large square openings, US-BSO was significantly reduced the beam capacity by 61.76 % as compared to solid control beam, CB. However, the RC deep beam with large square openings strengthened by CFRP strips wrapped in U-shaped, SU-BSO has increases the beam capacity by 62.77 % compared to US-BSO. From the results obtained, it was found that the most effective CFRP strengthening method for RC deep beam with large square openings was U-shaped, which recovered the beam capacity up to 62.24 % as compared to solid control beam 2015-06 Undergraduates Project Papers NonPeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/12242/1/FKASA%20-%20NG%20KIN%20MUN%20%28CD9234%29.pdf application/pdf en http://umpir.ump.edu.my/id/eprint/12242/6/FKASA%20-%20NG%20KIN%20MUN%20%28CD9234%29%20-%20CHAP%201.pdf application/pdf en http://umpir.ump.edu.my/id/eprint/12242/13/FKASA%20-%20NG%20KIN%20MUN%20%28CD9234%29%20-%20CHAP%203.pdf Ng, Kin Mun (2015) Strengthening of reinforced concrete deep beams having large square openings in shear zone with carbon fiber reinforced polymer (CFRP) wrap. Faculty of Civil Engineering & Earth Resources, Universiti Malaysia Pahang. http://iportal.ump.edu.my/lib/item?id=chamo:92090&theme=UMP2
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English English English
topic	TA Engineering (General). Civil engineering (General)
spellingShingle	TA Engineering (General). Civil engineering (General) Ng, Kin Mun Strengthening of reinforced concrete deep beams having large square openings in shear zone with carbon fiber reinforced polymer (CFRP) wrap
description	Typically, the reinforced concrete (RC) deep beam with large openings are facing some severe problems such as the interruption of natural load transfer by concrete struts acting in compression which can cause an intensive reduction in strength; and the clearly visible cracks in serviceability conditions. The CFRP has become an alternative solution to this issue and being extensively used as an external reinforcement to resolve the strength requirements in structural systems due to extremely strong yet light weight, outstanding fatigue properties, excellent corrosion resistance and easy yet efficient application on concrete. This experimental study is focuses on the investigation of the effect of CFRP wrap in strengthening RC deep beams with large square openings located in shear zone. Three approaches are under consideration; the first is the determination of natural load transfer in normal deep beam without opening, the second is the large square openings in deep beam without CFRP strengthening, and the third is the large square openings in deep beam with CFRP attached around the openings. A total of four RC deep beams which included a solid RC control beam, a deep beam with two large square openings, and two beams with two large square openings strengthened by using CFRP strips in different strengthening configurations, were tested to failure under four point loading to determine the relative structural behaviour such as ultimate load, failure mode, crack patterns, and load deflection behaviour. All RC deep beams were designed in a dimension of 120 x 600 mm and 2400 mm in length. The width and height of large square openings were in a dimension of 270 x 270 mm and located 300 mm from the edge of the deep beam. The loading point and support were located at 800 mm and 300 mm from the edge of the deep beam, respectively. RC deep beam with large square openings, US-BSO was significantly reduced the beam capacity by 61.76 % as compared to solid control beam, CB. However, the RC deep beam with large square openings strengthened by CFRP strips wrapped in U-shaped, SU-BSO has increases the beam capacity by 62.77 % compared to US-BSO. From the results obtained, it was found that the most effective CFRP strengthening method for RC deep beam with large square openings was U-shaped, which recovered the beam capacity up to 62.24 % as compared to solid control beam
format	Undergraduates Project Papers
author	Ng, Kin Mun
author_facet	Ng, Kin Mun
author_sort	Ng, Kin Mun
title	Strengthening of reinforced concrete deep beams having large square openings in shear zone with carbon fiber reinforced polymer (CFRP) wrap
title_short	Strengthening of reinforced concrete deep beams having large square openings in shear zone with carbon fiber reinforced polymer (CFRP) wrap
title_full	Strengthening of reinforced concrete deep beams having large square openings in shear zone with carbon fiber reinforced polymer (CFRP) wrap
title_fullStr	Strengthening of reinforced concrete deep beams having large square openings in shear zone with carbon fiber reinforced polymer (CFRP) wrap
title_full_unstemmed	Strengthening of reinforced concrete deep beams having large square openings in shear zone with carbon fiber reinforced polymer (CFRP) wrap
title_sort	strengthening of reinforced concrete deep beams having large square openings in shear zone with carbon fiber reinforced polymer (cfrp) wrap
publishDate	2015
url	http://umpir.ump.edu.my/id/eprint/12242/ http://umpir.ump.edu.my/id/eprint/12242/ http://umpir.ump.edu.my/id/eprint/12242/1/FKASA%20-%20NG%20KIN%20MUN%20%28CD9234%29.pdf http://umpir.ump.edu.my/id/eprint/12242/6/FKASA%20-%20NG%20KIN%20MUN%20%28CD9234%29%20-%20CHAP%201.pdf http://umpir.ump.edu.my/id/eprint/12242/13/FKASA%20-%20NG%20KIN%20MUN%20%28CD9234%29%20-%20CHAP%203.pdf
first_indexed	2023-09-18T22:13:41Z
last_indexed	2023-09-18T22:13:41Z
_version_	1777415195874820096

Strengthening of reinforced concrete deep beams having large square openings in shear zone with carbon fiber reinforced polymer (CFRP) wrap

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