Evaluation and control method for ocean platform structure risk robustness

The invention discloses an evaluation and control method for ocean platform structure risk robustness. The ocean platform structure risk is divided into a first risk, the overall failure probability of which is constantly increasing with time, and a second risk caused by emergency events; the risk robustness is measured by the proportion of immediate consequence in total consequence; by a random process, the risk robustness of the platform structure is determined, therefore, when the immediate consequence occurs, the first risk and the second risk of the platform structure are influenced by a maintenance behavior so as to control the risk robustness. According to the evaluation and control method for ocean platform structure risk robustness, the guidance evidence can be provided for the risk robustness evaluation and the robustness control decision of the ocean patrolmen platform under emergency events.