摘要：The structural health monitoring system for bridges is a hot topic at home and abroad. The safety and reliability of large bridges have a huge impact on society, so it is necessary to carry out longterm real-time, online health monitoring. The bridge project is affected by the marine environment. The wind and waves are high and the typhoons are frequent. The construction structure is long-term service in a harsh marine environment, and the structure is prone to damage, which brings great challenges to construction safety and management. This paper uses the signal processing toolbox to develop programs suitable for signal processing such as wind speed, wave, tide, inclination, vibration acceleration, ocean current velocity, and direction, so that various processing methods can be used to analyze the signal and realize the early warning function. The on-site monitoring data and theoretical analysis results indicate that the relative displacements of the pile caps and the pile foundation are reasonable.
关键词：Sea-crossing bridge;Prefabricated pier;Ocean waves;Vibration monitoring system
