Abstract
Structural performance and durability performance of the structure strongly depends on corrosion of the reinforcing bars and corrosion reduction amount. Normally, deterioration diagnosis is made visually. If it is possible to estimate the corrosion amount of the reinforcing bars from the cracks on the concrete surface, it is possible to perform advanced maintenance management. In this research we have adopted a damage model based on fracture mechanics developed in recent years. Simulation of crack propagation of concrete due to corrosion expansion of deformed reinforcement and round steel muscle by finite element scheme which can reproduce fine crack growth of concrete will be carried out and the influence of corrosion expansion of reinforcing bar on crack width will be examined.
