A Real-Time Monitoring and Assessment System for Existing CFST Arch Bridges

The real-time monitoring and assessment system for existing concrete-filled steel tube(CFST) arch bridges is a system that is used for monitoring the temperature fields at bridge sites,the traffic load conditions,the static and dynamic effect of the bridges and also for assessing the operation status of the principal structures of the bridges.The system is mainly composed of the condition monitoring,damage alarming,performance assessment and auxiliary decision subsystems.The system can automatically acquire,analyze and assess the different condition data of the bridge structures,make judgment of and alarm the abnormal conditions,automatically detect and acquire the malfunction of the system itself,flexibly set the time sections of data acquisition,record in a long term and all-round way the load and the response history on the bridges,real-time inquire and analyze the operation conditions of the bridges,determine the rational locations of layout of sensors through calculation and remotely transmit the data by the wired data transmission.The operation of the system shows that the system has realized the real time linkage acquisition and automatic transmission of the data and images of the CFST arch bridges as well as the remote automatic monitoring,performance assessment and safety alarming of the operation conditions of the bridges.