Behaviour of CFRP (Carbon Fiber Reinforced Polymer) Strengthened Rc Pier Under Lateral Load

Abstract

Since FRP has gained popularity in retrofitting the RC structures, this paper presents the behaviour of RC Pier before and after retrofitting subjected to monotonic lateral load. This paper is based on the results obtained from experiment performed on column-footing assembly in laboratory. Each specimen was subjected to monotonic lateral load and load, displacements as well as the patterns of cracks and damage behavior were monitored carefully. On the basis of degree of damage observed the retrofitting of damaged specimen with carbon fiber reinforced polymer (CFRP) was varied. The retrofitted specimens were also tested under monotonic lateral load and its crack patterns, damage behavior, load and displacements were monitored carefully. An experimental result of this study indicates that CFRP used in this work enhanced the strength and stiffness of damage column-footing specimens. As compared to the initial capacity of the specimens the capacity of retrofitted specimens was reduced by less than 20% only.