Fatigue Life Prediction for Semi-Closed Noise Barrier of High-Speed Railway under Wind Load

The fatigue state of the semi-closed noise barrier directly affects driving safety, and replacement after damage leads to train delays increased operating costs. It is more eco-friendly sustainable predict life barriers reinforce structure in time. However, previous prediction methods provide a limited reference design stage. In this study, novel method for was proposed. computational fluid dynamics finite element model were established subjected simulated natural wind aerodynamic impulse loads calculate stress time-history on barrier. Based rain flow counting Miner linear cumulative theory, three Chinese cities predicted. results show that closely related conditions operation modes. Targeted reinforcement different states can save materials reduce maintenance workload. Moreover, influence load summarized, engineering suggestions prolonging put forward.