摘要
小波分析方法能较为准确地识别结构的模态参数即频率和阻尼.将小波理论应用于钢管混凝土拱桥的模态参数识别当中,以四川白日坝大桥为工程实例,得到该桥的频率与阻尼,并与理论值进行了对比,结果吻合良好,证明其在实际工程应用中的有效性和可靠性.
Wavelet analysis can accurately identify a structure＇s modal parameters, i. e. , its frequency and damping. Taking Bairiba Bridge in Sichuan Province as practical example and applying wavelet analysis to the identification of its modal parameters, this paper obtained its frequency and damping and compared them with its theoretical values. Good coincidence of results demonstrates that this analysis method is valid and reliable in engineering application.
出处
《中南林业科技大学学报》
CAS
CSCD
北大核心
2009年第4期105-110,共6页
Journal of Central South University of Forestry & Technology
基金
湖南省自然科学基金项目(05JJ30083)
湖南省教育厅项目(06C897)
中南林业科技大学青年基金项目(06025B)
关键词
桥梁
钢管混凝土拱桥
小波变换
模态参数识别
bridge
concrete-filled and steel-tubular arch bridge
wavelet variation
modal parameter identification
