UpgradationOf Existing Multi-Storey RC Building By Retrofitting

Abstract

Retrofitting of the existing reinforced concrete (RC) building is currently a major economic activity for the redevelopment of congested urban areas. Reversible technologies by special concreting are capable of protecting the building from damage, providing high levels of structural safety. One should properly assess the vulnerability of the existing multi-storey buildings and accordingly adopt protective measures. The retrofitting techniques are technically sound and economically feasible to upgrade the deficient and damaged multi-story structures. The present study describes a retrofitting system of the existing four-storey reinforced concrete building located in PES University Bangalore, designed for vertical loads of extra two-storey structure. The structural analysis performed on the inspected building has shown its inability to withstand any additional loads. Therefore, the redesign of such building through retrofitting of existing columns and footings has been assessed through structural analysis carried out using STAAD-Pro software. These results have shown a safe design of the retrofitted building in terms of strength, stiffness and ductility.