An Experimental Study on Behavior of RCC Columns Retrofitted using CFRP
P. Murali Krishna1, M. Anil Kumar2
1P. Murali Krishna, P.G. Student, Structural Engineering, Department of Civil Engineering, Koneru Lakshmaiah Education Foundation, Guntur District (A.P), India.
2M. Anil Kumar, Assistant Professor, Structural Engineering, Department of Civil Engineering, Koneru Lakshmaiah Education Foundation, Green Fields, Guntur District (A.P), India.
Manuscript received on 05 May 2019 | Revised Manuscript received on 17 May 2019 | Manuscript Published on 28 May 2019 | PP: 898-901 | Volume-7 Issue-6C2 April 2019 | Retrieval Number: F11660476C219/2019©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: Reinforced concrete structures may be deficient due to various reasons such as improper design of structural elements, deficiency of reinforcement provided, assuming load carrying capacity which is insufficient, etc., from many investigations it is proved that wrapping carbon fiber reinforced polymer (CFRP) can be effective solution for confining and strengthening of deficient RC columns. In this experimental study the behavior of CFRP Wrapped structurally damaged small scale square RC columns having cross-sectional area 150mm x 150mm and height of 1500mm with a nominal cover of 20mm have been tested under axial compression under loading frame. These damaged columns are retrofitted with CFRP by providing corner radii of 5mm, 20 mm(nominal cover), are wrapped with CFRP. These retrofitted specimens are tested under Uni-axial compression on loading frame. The results showed that smoothed edges of square cross-section of Reinforced Concrete columns played a significant role in delaying the rupture of the CFRP composite at the edges.
Keywords: RCC Column, CFRP, Corner Radii, Wrapped.
Scope of the Article: Behaviour of Structures