Elasto-Plasticity Critical Corrosive Ratio Model for RC Structure Corrosive Expanding Crack

摘要

The parameter of filling expanding ratio n, plasticity factor k_1 and deformation parameter k_2 is raised, and then the elasto-plasticity critical corrosive ratio model for RC structure corrosive expanding crack based on elasto-plasticity theory is constructed in this paper. The influences of parameters such as filling expansion ratio n, plasticity factor k_1, deformation parameter k_2, Poisson ratio of concrete v, diameter of reinforced bar d and protective layer thickness c on the critical corrosive ratio are researched by theory analysis and experiments. The experimental results validate the accuracy of the model. According to the experimental study, the least squares solution is calculated as n = 1.8,k_1, =0.61,k_2 =0.5.