在大跨悬索桥结构损伤预警方法研究的基础上，详细研究了润扬大桥悬索桥结构损伤预警系统的设计与实现方法。结构损伤预警系统采用基于“环境条件归一化”模态频率和小波包能量谱的损伤预警方法，并采用两阶段设计方法分别完成在线损伤预警分析和离线损伤预警分析。采用Client/Server和扩展Browser/Server两种系统模式相结合的形式将损伤预警系统与结构健康监测其他子系统相互结合，并采用LabVIEW软件编制了润扬大桥悬索桥结构损伤预警系统软件。该软件的主要功能包括在线模态频率识别和小波包能量谱识别模块：结构损伤预警参数与环境因素之间的相关性分析与统计建模模块；结构异常状态监测与预警分析模块。

The design and realization method for structural damage alarming system of Runyang Suspension Bridge is discussed in detail based on the structural damage alarming method for long-span suspension bridges. The structural damage alarming system adopts the damage alarming methods based on environmental-condition-normalized modal frequency and wavelet packet energy spectrum. The online and offline damage alarming analysis is realized using the two-stage design method. The double system mode of Client/Server and the extended Browser/Server are suggested to connect damage alarming system and other subsystems of health monitoring system efficiently and effectively. The structural damage alarming system software of Runyang Suspension Bridge is developed using the LabVIEW software, which includes three parts, i.e., online identification of modal frequency and wavelet packet energy spectrum, correlation analysis and statistical modeling of damage alarming parameter and environmental-conditions, detection and alarming of structural abnormal condition.