Study On The Bridge Healthy Monitoring DataBase System Based On Optical Fiber Sensing

Through the monitoring and evaluation for the state of the bridge structure, the bridge healthy monitoring system will send out pre-alert signal when the bridge is under special climate, special traffic condition and the serious exceptions of running condition ,and it analyses and evaluates the bridge life and supplies scientific evidence for the maintaining and management policy.Aiming at the actuality of the bridge examination, this paper brings forward a measure that uses the specialties of FBGS ,such as real-time, long-time and precision, to solve the problems which the manual examination measures cannot solve well, and researches the bridge healthy monitoring system with FBGTS, FBGSS and FBGDS. The system of bridge health monitoring is a connecting link between the preceding and the following. It not only make an centralized store for all kind of complicate data of system, but also store the data that had been processed. It can provide the decision-making gist for the bridge evaluating system and the department of bridge management, improves the knowledge of people for large-scale complex structure, provide the design and construct gist for the later item.The main work of this paper:(1) This paper resumptively introduces the work theory of the FBGTS, FBGSS and FBGDS, and the usual fiber optic sensor used in the bridge health monitoring system,discuss the design principle and monitoring content of the bridge health monitoring system.(2) According to the characteristics of the bridge healthy monitoring database system, such as the a great many sensors, magnanimity data and the site of monitoring is faraway form the people of monitoring and analysis, this paper use jsp language to design the Ulti-tier structure Applied system of database under the direction of object oriented software design method.(3) Dicuss and design the safety and data backup of the healthy monitoring database system.