摘要
近年来,对桥梁的损伤识别技术已日益成熟,拟通过小波变换理论分析桥梁模态振型,将该项技术应用于某座双塔三跨斜拉桥中,并通过有限元分析软件Ansys建模对此方法予以验证。研究结果表明:通过小波变换的该桥低阶模态振型能够进行损伤定位,且对损伤情况有一定程度的评估。
In recent years,the bridge damage identification technology has been increasingly mature. This paper analyzes the bridge mode vibration by wavelet transform theory,applies this technology to a three span cable-stayed bridge in Twin Towers,and verifies this method by finite element analysis software Ansys. The results show that the low order mode vibration mode of the bridge can be located by the wavelet transform,and the damage situation is evaluated to a certain extent.
作者
唐登维
杜中和
杨帅
Tang Dengwei;Du Zhonghe;Yang Shuai(China Railway Southwest Science Research Institute Co. , Ltd, Chengdu 611730, China)
出处
《山西建筑》
2018年第13期190-192,共3页
Shanxi Architecture
关键词
斜拉桥
模态振型
有限元分析
损伤识别
cable-stayed bridge
modal shape
finite element analysis
damage identification
