Modal parameter identification of a rigid frame-continuous girders bridge under ambient excitation by fast bayesian FFT method

doi:10.4028/www.scientific.net/AMR.639-640.985

IR > 土木工程学院

	Modal parameter identification of a rigid frame-continuous girders bridge under ambient excitation by fast bayesian FFT method
	Han, Jianping1 ; Zheng, Peijuan 2
	2013
会议名称	1st International Conference on Advances in Civil Infrastructure Engineering, ICACIE 2012
会议录名称	Advanced Materials Research
卷号	639-640
期号	1
页码	985-991
会议日期	December 15, 2012 - December 16, 2012
会议地点	Changsha, China
出版者	Trans Tech Publications, P.O. Box 1254, Clausthal-Zellerfeld, D-38670, Germany
摘要	Bayesian theory is adopted in modal parameter identification, finite element model updating and residual capacity evaluation of the structures recently. Fast Bayesian FFT modal identification approach provides a rigorous way to obtain modal parameters and well-separated modes using the fast Fourier transform under ambient excitation. Moreover, it avoids choosing the modal order or removing false modes based on the stable diagram and has its obvious advantages. In this paper, modal parameters of a rigid frame-continuous girders bridge under ambient excitation are identified by this approach. Comparison with stochastic subspace identification (SSI) method indicates that Fast Bayesian FFT is a good approach to identify the modal parameters even for a large number of measurement channels. © (2013) Trans Tech Publications, Switzerland.
关键词	Composite beams and girders Finite element method Modal analysis Rigidity Ambient excitation Bayesian theory Finite-element model updating Measurement channels Modal identification Modal parameter identification Modal parameters Residual capacity Stochastic subspace identification
DOI	10.4028/www.scientific.net/AMR.639-640.985
收录类别	EI
语种	英语
EI入藏号	20130615996947
EI主题词	Fast Fourier transforms
ISSN	10226680
来源库	Compendex
分类代码	412 Concrete - 921 Mathematics - 951 Materials Science
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	会议论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/117576
专题	土木工程学院教务处（创新创业学院）
作者单位	1.Key Laboratory of Disaster Prevention and Mitigation in Civil Engineering of Gansu Province, Lanzhou University of Technology, Lanzhou, Gansu, China; 2.Institute of Earthquake Protection and Disaster Mitigation, Lanzhou University of Technology, Lanzhou, Gansu, China
第一作者单位	甘肃省土木工程防灾减灾重点实验室
推荐引用方式 GB/T 7714	Han, Jianping,Zheng, Peijuan. Modal parameter identification of a rigid frame-continuous girders bridge under ambient excitation by fast bayesian FFT method[C]:Trans Tech Publications, P.O. Box 1254, Clausthal-Zellerfeld, D-38670, Germany,2013:985-991.