Review on Reinforced Concrete Column Jacketin...

Review on Reinforced Concrete Column Jacketing

Author Name : A.V. Ravesanker, Kathirvel, Dr. S. Suresh Babu

ABSTRACT In this Paper, a review on behaviour of Reinforced concrete columns when strengthened by providing reinforced concrete jacketing is discussed. Large number of studies on the reinforced concrete column jacketing are already conducted and reported. Even though, there is a need to improve the performance of RC Jacketing by applying new techniques. Columns are the most important member of the framed structure. Columns are subjected to continuous loading and if there is a failure on the column it may lead to total collapse of the structure. To overcome the failure of column due to any calamity/ excessive loading, the damaged column should be given immediate attention and they should be repaired by providing Reinforced Concrete Jacketing. This review focus on the use of providing cross ties to the new longitudinal bars, use of providing shear keys/ dowels bars to increase bond between existing and new reinforcement and the use of self-compacting concrete. They also found that using the shear keys, self-compacting concrete in the jacket increased the overall load carrying capacity, bond strength and they also achieved monolithic behaviour after RC jacketing.