Nonlinear Finite Element Analysis of Bonding Behavior of Corroded Mortar Anchor under Dynamic Load

The connection between reinforcement and mortar was established through the surface-to-surface contact method. transient dynamic Full method adopted for loading solution. numerical analysis model bonding performance of corroded bolts under load established. results were compared with test verification. bond properties anchorage interface conditions different protection thickness, length corrosion rate analyzed. show that simulation are in good agreement results. can analyze bolts. Within a certain limit, stress is positively correlated thickness protective layer.The larger is, greater at end will be, more uneven distribution segment be. However, when reaches value, continuous increase have no obvious effect on improvement its performance, so there an optimal length. With ratio, peck decreased gradually.