Effect of MS Rings’ Confinement on Lateral Deformations of M 25 Grade Circular RCC Columns under Axial Compression Loads
Chaitanya Mishra1, Tanveer Ahmed Kazi2

1Chaitanya Mishra*, Research Scholar, Mewar University Gangrar, Chittorgarh, Rajasthan, India.
2Prof.(Dr.)Tanveer Ahmed Kazi PhD supervisor, Dean(Engg. & Technology) Mewar University, Gangrar, Chittorgarh, Rajasthan, India.
Manuscript received on February 10, 2020. | Revised Manuscript received on February 20, 2020. | Manuscript published on March 10, 2020. | PP: 221-223 | Volume-9 Issue-5, March 2020. | Retrieval Number: E2319039520/2020©BEIESP | DOI: 10.35940/ijitee.E2319.039520
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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: Confinement has been always a key concern area for researchers in present and in past also. The metal confinement of RCC columns has been extensively used from long time like concrete-filled steel tube (CFST) columns etc. In the present work mild steel rings have been used as confining material. In this paper based on experimental work, it is aimed to improve the axial compression strength and lateral deformation characteristics of circular RCC columns confined by mild steel (MS) rings. Total 45 nos. of specimen of size 150 mm dia. and 300 mm height were prepared during the experimental work. These specimen were tested and results were analyzed.These MS rings confined circular RCC columns of M 25 grade concrete were experimentally studied for different variables like (i) % of column main vertical steel bars (ii) thickness of MS rings (iii) spacing of MS rings. It was found that the MS ring confinement effectively helped in reducing lateral deformation of circular RCC column specimen resulting in improved axial compressive load capacity of circular RCC columns also. As MS rings are made up of conventional material i.e. mild steel pipes, the technique has a vast application area. In rural part of India this technique can be conviniently used for the efficient confinement of RCC columns. 
Keywords: RCC, M-25, Circular Column, Confinement, Mild Steel Ring.
Scope of the Article: Behaviour of Structures under Seismic Loads