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Sustainable shear behaviour of 2-span continuous reinforced concrete T-beams with CFRP strips

Abdul Samad, Abdul Aziz and Alferjani, Marwan B. S. and Ali, Noorwirdawati and Mohamad, Noridah and Ahmad, Mohd Hilton and Kong, Fah Tee and Mendis, Priyan (2016) Sustainable shear behaviour of 2-span continuous reinforced concrete T-beams with CFRP strips. In: International Symposium on Civil and Environmental Engineering 2016 (ISCEE 2016), 5-6 December 2016, Melaka, Malaysia.

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Abstract

Reinforced concrete (RC) structures are generally subjected to various load conditions and are susceptible to environmental impact. With time, most of these structures will be subjected to change in their usage. Unexpected increase in load changes may cause severe damage to the structural components, and eventual leading to various types of structural failure. It is noted that shear failure in nature is a sudden failure and should be avoided at all times. To increase its service life due to shear, structures can be strengthened or repaired using CFRP strips wrapped within the shear span (av) of the beam. Hence, this paper presents an investigation on the sustainable behaviour of two span continuous RC T-beams strengthened and repaired by wrapping Carbon Fibre Reinforced Polymer (CFRP) strips at intervals along the shear span (av) of the beam. The CFRP strips will be orientated in two directions either at 0°/90° or 45°/35°. Five beams, one control beam, two initially strengthened beams and two precracked and repaired beams were cast and cured in room temperature before testing. All T-beams were designed to fail in shear and are subjected to four-point bending test until failure. Upon completion of the test, all beam specimens shows good sustainable behaviour as the ultimate load and shear load shows an increase in capacity by up to 23% with improve ductile behaviour.

Item Type: Conference or Workshop Item (Paper)
Subjects: T Technology > TA Engineering (General). Civil engineering (General) > TA630-695 Structural engineering (General)
Divisions: Faculty of Civil and Environmental Engineering > Department of Structural and Material Engineering
Depositing User: Mr. Mohammad Shaifulrip Ithnin
Date Deposited: 30 Sep 2019 03:20
Last Modified: 30 Sep 2019 03:20
URI: http://eprints.uthm.edu.my/id/eprint/11648
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