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Modal Parameters Estimation of Building Structures from Vibration Test Data Using Observability Measurement
Joint Authors
Hwang, Jae-Seung
Kim, Hongjin
Cho, Bong-Ho
Source
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-10-27
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Abstract EN
The load distribution to each mode of a structure under seismic loading depends on the modal participation factors and mode shapes and thus the exact estimation of modal participation factors and mode shapes is essential to analyze the seismic response of a structure.
In this study, an identification procedure for modal participation factors and mode shapes from a vibration test is proposed.
The modal participation factors and mode shapes are obtained from the relationship between observability matrices realized from the system identification.
Using the observability matrices, it is possible to transform an arbitrarily identified state space model obtained from the experimental data into a state space model which is defined in a domain with physical meaning.
Then, the modal participation factor can be estimated based on the transformation matrix between two state space models.
The numerical simulation is performed to evaluate the proposed procedure, and the results show that the modal participation factor and mode shapes are estimated from the structural responses accurately.
The procedure is also applied to the experimental data obtained from the shaking table test of a three-story shear building model.
American Psychological Association (APA)
Hwang, Jae-Seung& Kim, Hongjin& Cho, Bong-Ho. 2015. Modal Parameters Estimation of Building Structures from Vibration Test Data Using Observability Measurement. Shock and Vibration،Vol. 2015, no. 2015, pp.1-13.
https://search.emarefa.net/detail/BIM-1078233
Modern Language Association (MLA)
Hwang, Jae-Seung…[et al.]. Modal Parameters Estimation of Building Structures from Vibration Test Data Using Observability Measurement. Shock and Vibration No. 2015 (2015), pp.1-13.
https://search.emarefa.net/detail/BIM-1078233
American Medical Association (AMA)
Hwang, Jae-Seung& Kim, Hongjin& Cho, Bong-Ho. Modal Parameters Estimation of Building Structures from Vibration Test Data Using Observability Measurement. Shock and Vibration. 2015. Vol. 2015, no. 2015, pp.1-13.
https://search.emarefa.net/detail/BIM-1078233
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1078233