随着大跨径桥梁运营监测系统的不断发展，有效地利用监测数据对大桥的运营状态进行预警和评估分析，已成为世界各国桥梁工程界研究的热点问题之一。在已有研究成果的基础上，依托舟山连岛工程西堠门金塘大桥运营期监测系统，构建了全面的结构预警和评估体系，将前沿理论与实际需求相结合，力求为养护管理决策提供科学依据。

With the development of health monitoring system for the long span bridge, how to use the data effectively to give proper assessment is of vital importance in the field of the world bridge engineering. Based on the investigation of present assessment methods, through the experiences of practice engineering—Zhoushan Island Xihoumen and Jintang Bridges' health monitoring system, the authors designed a new assessment system, making comprehensive assessment of long span bridges, combining cutting-edge theory and practice, and striving to provide a scientific basis for maintenance and management.