Retrofitting of Flexural Deficient Beams Using CFRP
P. Vijaya Kumar1, P. Poluraju2
1P. Vijaya Kumar, Research Scholar, Department of Civil Engineering, Koneru Lakshmaiah Education Foundation Deemed to be University, Guntur (Andhra Pradesh), India.
2P. Poluraju, Associate Professor, Department of Civil Engineering, Koneru Lakshmaiah Education Foundation Deemed to be University, Guntur (Andhra Pradesh), India.
Manuscript received on 29 April 2019 | Revised Manuscript received on 13 May 2019 | Manuscript Published on 28 May 2019 | PP: 6-11 | Volume-7 Issue-6C2 April 2019 | Retrieval Number: F10020476C219/2019©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: Retrofitting the Reinforced Concrete (RC) framed structures have been magnifying these days globally. In order to have the up gradation towards the strength of the structural elements which are bounded externally using CFRP along with epoxy resin and hardener. The performance of conventional and retrofitted beams under weak in flexure theoretically and experimentally have been studied in this investigation and also his research emphasizes on the elaborate procedure for effective retrofitting. Total six beams were cast and in which three conventional and three retrofitted by reducing main reinforcement from 100% to 70% and 50%, to assess the flexural strength and damage level of the beams under weak in flexure condition. The design calculations have been considered based on conventional force equilibrium equations as per Indian Standards. The symmetrical two-point loading have been applied along with span at a distance of L/3 on the beam. The results which are obtained in which the ultimate load carrying capacity of retrofitted beams has been increased significantly when compared to conventional beams. The comparisons were made according to the experimental test results and the failure mechanism of beams.
Keywords: Retrofitting, Carbon Fiber Reinforcement Polymer (CFRP), Epoxy Resin and Hardener, Beam Weak in Flexure.
Scope of the Article: Civil and Environmental Engineering