Behaviour of RC Beams Strengthened by CFRP under Fatigue Load

One of the major tasks for the construction industries worldwide is rehabilitation of
structurally deteriorated or functionally obsolete reinforced concrete structures. The
major portion of the infrastructure is built from reinforced concrete and corrosion of
reinforcing steel was found to be one of the principal cause of deterioration. The
solution to this task has been proved by the use of externally bonded carbon fibre
reinforced polymer (CFRP) strips to strengthen reinforced concrete structures. In this
study, the behaviour of reinforced concrete beams strengthened with externally bonded
carbon fiber reinforced plastic (CFRP) under fatigue load were investigated. The
capacity of CFRP strengthened beams subjected to fatigue loads, fatigue characteristics
of reinforced concrete beam strengthened by CFRP, fatigue life and behaviour of the
reinforced concrete beam were studied. Data obtained from experimental investigations
were statistically analyzed and valid correlations were obtained.