Assessment of effectiveness of CFRP repaired RC beams under different damage levels based on flexural stiffness

This paper presents a study to determine the effectiveness of Carbon Fiber Reinforced Polymer (CFRP) sheets as a flexural repair system for Reinforced Concrete (RC) beams. The effectiveness of these sheets is ascertained by monitoring the flexural stiffness recovery. Experimental work is conducted o...

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Main Authors:	Fayyadh, M.M., Abdul Razak, H.
Format:	Article
Published:	2012
Subjects:	TA Engineering (General). Civil engineering (General)
Online Access:	http://www.scopus.com/inward/record.url?eid=2-s2.0-84865440423&partnerID=40&md5=ff816526a3106aacfbdcd18b7b529ae9 www.sciencedirect.com/science/article/pii/S0950061812004904 http://ac.els-cdn.com/S0950061812004904/1-s2.0-S0950061812004904-main.pdf?tid=a6bd http://www.scopus.com/inward/record.url?eid=2-s2.0-84865440423&partnerID=40&md5=ff816526a3106aacfbdcd18b7b529ae9 www.sciencedirect.com/science/article/pii/S0950061812004904 http://ac.els-cdn.com/S0950061812004904/1-s2.0-S0950061812004904-main.pdf?tid=a6bd http://eprints.um.edu.my/9038/1/Assessment_of_effectiveness_of_CFRP_repaired_RC_beams_under_different.pdf

id	um-9038
recordtype	eprints
spelling	um-90382014-12-21T09:30:10Z Assessment of effectiveness of CFRP repaired RC beams under different damage levels based on flexural stiffness Fayyadh, M.M. Abdul Razak, H. TA Engineering (General). Civil engineering (General) This paper presents a study to determine the effectiveness of Carbon Fiber Reinforced Polymer (CFRP) sheets as a flexural repair system for Reinforced Concrete (RC) beams. The effectiveness of these sheets is ascertained by monitoring the flexural stiffness recovery. Experimental work is conducted on scaled beams where four beams are used as the datum. The first beam is without CFRP sheets, the second is a repaired beam after pre-damaged under design load limit, whilst the third is a repaired beam after pre-damaged under steel yield load limit, and the fourth is a repaired beam after pre-damaged under ultimate load. Comparisons are made based on the flexural stiffness recovery, crack patterns, load capacity, and failure modes of the beams. The study validates the ability of the flexural stiffness change in order to monitor the effect of the damage as well as the effectiveness of the repair on stiffness recovery. The results prove the effectiveness of the CFRP sheets as a repair technique which increases the flexural stiffness and the ultimate load capacity whatever the pre-repair damage levels. In addition, this study indicates the ability of re-repairing the beams in the case of CFRP debonding. The failure modes are controlled by the pre-repair damage flexural crack wherein it causes the CFRP debonding. 2012 Article PeerReviewed application/pdf http://eprints.um.edu.my/9038/1/Assessment_of_effectiveness_of_CFRP_repaired_RC_beams_under_different.pdf http://www.scopus.com/inward/record.url?eid=2-s2.0-84865440423&partnerID=40&md5=ff816526a3106aacfbdcd18b7b529ae9 www.sciencedirect.com/science/article/pii/S0950061812004904 http://ac.els-cdn.com/S0950061812004904/1-s2.0-S0950061812004904-main.pdf?tid=a6bd Fayyadh, M.M.; Abdul Razak, H. (2012) Assessment of effectiveness of CFRP repaired RC beams under different damage levels based on flexural stiffness. Construction and Building Materials <http://eprints.um.edu.my/view/publication/Construction_and_Building_Materials.html>, 37. pp. 125-134. ISSN 09500618 http://eprints.um.edu.my/9038/
repository_type	Digital Repository
institution_category	Local University
institution	University Malaya
building	UM Research Repository
collection	Online Access
topic	TA Engineering (General). Civil engineering (General)
spellingShingle	TA Engineering (General). Civil engineering (General) Fayyadh, M.M. Abdul Razak, H. Assessment of effectiveness of CFRP repaired RC beams under different damage levels based on flexural stiffness
description	This paper presents a study to determine the effectiveness of Carbon Fiber Reinforced Polymer (CFRP) sheets as a flexural repair system for Reinforced Concrete (RC) beams. The effectiveness of these sheets is ascertained by monitoring the flexural stiffness recovery. Experimental work is conducted on scaled beams where four beams are used as the datum. The first beam is without CFRP sheets, the second is a repaired beam after pre-damaged under design load limit, whilst the third is a repaired beam after pre-damaged under steel yield load limit, and the fourth is a repaired beam after pre-damaged under ultimate load. Comparisons are made based on the flexural stiffness recovery, crack patterns, load capacity, and failure modes of the beams. The study validates the ability of the flexural stiffness change in order to monitor the effect of the damage as well as the effectiveness of the repair on stiffness recovery. The results prove the effectiveness of the CFRP sheets as a repair technique which increases the flexural stiffness and the ultimate load capacity whatever the pre-repair damage levels. In addition, this study indicates the ability of re-repairing the beams in the case of CFRP debonding. The failure modes are controlled by the pre-repair damage flexural crack wherein it causes the CFRP debonding.
format	Article
author	Fayyadh, M.M. Abdul Razak, H.
author_facet	Fayyadh, M.M. Abdul Razak, H.
author_sort	Fayyadh, M.M.
title	Assessment of effectiveness of CFRP repaired RC beams under different damage levels based on flexural stiffness
title_short	Assessment of effectiveness of CFRP repaired RC beams under different damage levels based on flexural stiffness
title_full	Assessment of effectiveness of CFRP repaired RC beams under different damage levels based on flexural stiffness
title_fullStr	Assessment of effectiveness of CFRP repaired RC beams under different damage levels based on flexural stiffness
title_full_unstemmed	Assessment of effectiveness of CFRP repaired RC beams under different damage levels based on flexural stiffness
title_sort	assessment of effectiveness of cfrp repaired rc beams under different damage levels based on flexural stiffness
publishDate	2012
url	http://www.scopus.com/inward/record.url?eid=2-s2.0-84865440423&partnerID=40&md5=ff816526a3106aacfbdcd18b7b529ae9 www.sciencedirect.com/science/article/pii/S0950061812004904 http://ac.els-cdn.com/S0950061812004904/1-s2.0-S0950061812004904-main.pdf?tid=a6bd http://www.scopus.com/inward/record.url?eid=2-s2.0-84865440423&partnerID=40&md5=ff816526a3106aacfbdcd18b7b529ae9 www.sciencedirect.com/science/article/pii/S0950061812004904 http://ac.els-cdn.com/S0950061812004904/1-s2.0-S0950061812004904-main.pdf?tid=a6bd http://eprints.um.edu.my/9038/1/Assessment_of_effectiveness_of_CFRP_repaired_RC_beams_under_different.pdf
first_indexed	2018-09-06T05:39:12Z
last_indexed	2018-09-06T05:39:12Z
_version_	1610835403500158976

Assessment of effectiveness of CFRP repaired RC beams under different damage levels based on flexural stiffness

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