Numerical Simulation of Behaviour of Reinforced Concrete 1 Structures Considering Corrosion Effects on Bonding

7 Corrosion of reinforcing steel in concrete can alter the interface between the steel and concrete and 8 thus affects the bond mechanism. This subsequently influences the behaviour of reinforced 9 concrete structures in terms of their safety and serviceability. The present paper attempts to 10 develop a numerical method that can simulate the behaviour of reinforced concrete walls subjected 11 to steel corrosion in concrete as measured by their load-deflection relationship. The method 12 accounts for the effects of corrosion on the stiffness, maximum strength, residual strength and 13 failure mode of the bond between the steel and concrete. In the numerical method, the 14 corrosion-affected stiffness and maximum strength of bond are explicitly expressed as a function 15 of corrosion rate. It is found in this paper that the increase in the bond strength due to minor 16 corrosion can increase the load-bearing capacity of the wall and the corrosion-affected reinforced 17 concrete walls exhibit less ductile behaviour compared with the uncorroded ones. The paper 18 concludes that the developed numerical method can predict the behaviour of corrosion-affected 19 reinforced concrete sea walls with reasonable accuracy. 20