Due to the very good computation efficiency of the WP coefficient, it was concluded that feature index of the WP coefficient node energy can satisfactorily meet the needs of bridge health monitoring.

• 认为两种特征指标的敏感性相差很小，而小波包系数节点能量特征指标的计算效率更高，更适合桥梁健康监测中损伤特征提取的要求。