An evaluation index system for cable-stayed bridge from multi-information sources

摘要

Evaluation data sources for modern large-scale bridges include manual inspection information and long-term monitoring data and nondestructive testing results. It is generally difficult to reflect the overall condition of structure from single source. Therefore a comprehensive evaluation index system based on multi-data sources was conducted for making better maintenance strategy. A cable-stayed bridge in Nanjing city was chosen as an example in this paper to illustrate the operation condition, evaluation result based on annual inspection report and the current problems of long-term monitoring system in detail. The system mainly contained the defects information from manual inspection in assistance of long-term monitoring data, and the evaluation result can be used as the basis for bridge maintenance and the data renewal of the base index.