COMPARATIVE STUDY OF GFRP LAMINATED RC COLUMN USING EXPERIMENTAL RESULTS AND ISIS-CANADA

Abstract

Fibre reinforced polymers have become popular for civil engineering application especially for structural upgradation due to their sound engineering properties. These materials have been found to be particularly attractive for applications involving the strengthening and rehabilitation of reinforced concrete structure. The FRP laminates provide the necessary hoop reinforcement, as well as a permanent formwork for the concrete core. In return, the concrete core contributes to the overall stability and stiffness of the composite system. This project is intended to study performance of GFRP wrapping on RC column representative sample. Design of GFRP wrapping was done as per provisions in ISIS-CANADA design manual no.4. RC cylinders of 600 mm height and 200 mm diameter were designed and cast with M25 grade concrete as per the guidelines of IS:456-2000 and tested in unconfined and confined conditions, compare test results of compressive strength of the ordinary representative sample and wrapped sample also calculating and analogizing the design steps based on ISIS-CANADA. The main objective is to predict ultimate axial load carrying capacity of FRP confined RC columns