Bridge Technology Status Evaluation And Prediction

Based on the practical situation of bridge management, and its engineering characteristics, the evaluation and prediction method of bridges are studied in this paper. Considered the present condition of LiaoNing Province, the evaluation and prediction method of LiaoNing Province bridge technique condition is analyzed, then bridge condition changed-contingency evaluated method is introduced, negative index curve is chosen as the regression analysis model of the bridge condition prediction, and based on the information of bridge management system in the LiaoNing highway, the parameters of model are calibrated, the average repaired life of bridge is also calculated, the definite method of the bridge's repaired year is given, at the same time the Markov chain model of bridge condition prediction is presented.Bridge technique condition evaluation and prediction are the two aspects among the bridge management system. The research work has established the theoretical foundation for developing comprehensive bridge management system suited to Chinese bridge management sectors.