摘要
大跨度斜拉桥是交通线上的重要结构,对其健康状态进行监测具有重要价值。以位于广东新会的崖门桥(双塔刚构体系预应力单索面混凝土斜拉桥)为工程背景,探讨了结构动力损伤识别的基本步骤以及利用结构动力损伤识别三步法对大型工程结构进行损伤识别的有效性。结果表明结构动力损伤识别三步法对大跨度斜拉桥的损伤识别具有较好的适用性,适合在大跨度斜拉桥的健康监测中应用。
Cable-stayed bridge (CSB) is an important structure on traffic lines. Monitoring the bridge health is very necessary. In this paper basic steps of structural dynamic damage detection are discussed and a three-step method for structure damage diagnosis (TSMSDD) is proposed. The method is verified using the Yamen cable-stayed bridge of Xinhui city in Guangdong Province. The result shows that the proposed TSMSDD is effective for damage detection of long span cable-stayed bridge.
出处
《工程力学》
EI
CSCD
北大核心
2006年第8期53-56,41,共5页
Engineering Mechanics
基金
国家自然科学基金(50278047)
广东省自然科学基金(000387)联合资助
关键词
桥梁工程
斜拉桥
健康监测
损伤识别
三步法
bridge engineering
cable-stayed bridge
health monitoring
damage detection
three-step method