Parameters sensitivity analysis on corrosion of reinforcement to concrete stress field

Swelling product caused by steel erosion will be simulated by dummy radial displacement.The effect of concrete stress field will be analyzed by varying dummy radial displacement.Considering routine steel distribution,concrete stress variety round steel is revealed by concrete stress path.The stress distribution law is clearly,especially the stress outside concrete protection cover.The destroy location of surface layer concrete caused by steel erosion will be judged.The feasibility of sensitive parameter analysis is verified by analyzing concrete stress field with finite element method.