Overview of integrated health monitoring system installed on cable-stayed bridge and preliminary analysis of results

The Junshan Yangtze River Bridge, built in Wuhan, China 2001, is a steel box girder cable-stayed bridge with main span of 460m. Due to decades service, the suffered gradual degradation and some damage. Structural health monitoring has attracted worldwide attention due its capacity structural damage, assisting maintenance management, ensuring safe operation bridges. To monitor performance status bridges generate timely safety alarm, an integrated system been designed implemented on This paper provides thorough account used at Bridge. It mainly focuses selection variables arrangement sensor points, data collection transmission system, storage management strategy, user interface system. All kinds collected under daily operation, such as vehicle load, deflection, displacement, cable tension, are analysed. Monitoring for extreme condition, which involves two heavy trucks 178 tons moving across bridge, also results indicate that works well local welded joints may experience fatigue