Study of Cyclic behaviour of Corroded HPC beams strengthened with GFRP laminates by Nonlinear finite element modelling and experimental investigations

Abstract

Corrosion is a very big threat to the civil Engineering Structures especially on the coastal areas. Apart from the corrosion, the tidal forces on the structures act as the  cyclic loading  which in turn damage the structures by way of cyclic loading. There are two types of  cyclic loading, which are  constant amplitude and varying amplitude. In this experiment,  cyclic loading was taken  with Constant amplitude. Strengthening the corroded beams  on tension  face ie below the beams with GFRP  laminates improve the cyclic life of the beams. In this paper, the non linear finite element analysis (ANSYS) for the corroded high performance concrete beams under cyclic loading  to predict the cyclic life of the beams. The results were compared with the experimental results with regard to cyclic life and Maximum deflection. It is found that it is  reasonably agreeable. This indicates that the proposed FEMs can capture the cyclic behavior of the corroded HPC beams strengthened with GFRC laminates of 2 different thicknesses of  high accuracy.