Flexural strengthening of code-compliant RC beam-column joints using CFRP

Eslami, A., Ronagh, H. R. and Ashraf, M. (2013). Flexural strengthening of code-compliant RC beam-column joints using CFRP. In: Riadh Al-Mahaidi, Scott T. Smith, Yu Bai and Xiao-Ling Zhao, Proceedings of the 2013 Asia-Pacific Conference on FRP in Structures (APFIS 2013). APFIS 2013: Fourth Asia-Pacific Conference on FRP in Structures, Melbourne, VIC, Australia, (1-6). 11-13 December, 2013.

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Name Description MIMEType Size Downloads
Author Eslami, A.
Ronagh, H. R.
Ashraf, M.
Title of paper Flexural strengthening of code-compliant RC beam-column joints using CFRP
Conference name APFIS 2013: Fourth Asia-Pacific Conference on FRP in Structures
Conference location Melbourne, VIC, Australia
Conference dates 11-13 December, 2013
Proceedings title Proceedings of the 2013 Asia-Pacific Conference on FRP in Structures (APFIS 2013)
Place of Publication Melbourne, VIC, Australia
Publisher International Institute for FRP in Construction (IIFC)
Publication Year 2013
Sub-type Fully published paper
Open Access Status
ISBN 9780987593016
Editor Riadh Al-Mahaidi
Scott T. Smith
Yu Bai
Xiao-Ling Zhao
Start page 1
End page 6
Total pages 6
Collection year 2014
Language eng
Formatted Abstract/Summary
Effectiveness of externally bonded fibre reinforced polymers (FRPs) in order to repair/retrofit of deficient RC beam-column joints has been confirmed in recent years. Code-compliant structures could even benefit from FRP retrofitting if there is any significant change in the usage of the structure or more strict codes are imposed due to some inevitable circumstances. Towards this, an experimental investigation has been conducted on nine small scale (1/2.85) RC beam-column joint specimens; seven of them retrofitted using carbon FRP (CFRP) on top and bottom sides of the beam. The retrofitting design is aimed to increase the flexural strength of beam-column sub-assemblage. In addition, the efficiency of an almost novel technique in precluding the debonding brittle failure and facilitating the flexural moment transmission from beam to columns is investigated. Both monotonic and cyclic loading regimes are implemented to estimate, albeit approximately, the seismic responses of the test specimens. The experimental results in terms of load-displacement curves, ultimate strength, and ductility are compared before and after retrofitting. The outcomes indicate the capability of the suggested retrofitting scheme in not only enhancing the loading capacity, but also the relocation of the plastic hinges away from the column face if specified retrofitting details are implemented.
Keyword CFRP retrofitting
RC structures
Beam-column joints
Debonding
Strength
Ductility
Q-Index Code E1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Conference Paper
Collections: School of Civil Engineering Publications
Official 2014 Collection
 
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Created: Wed, 16 Apr 2014, 12:27:27 EST by Jon Swabey on behalf of School of Civil Engineering