Characterization of Nonstationary Mode Interaction of Bridge by Considering Deterioration of Bearing
Joint Authors
Xiao, Feng
Chen, Gang S.
Zatar, Wael
Hulsey, J. Leroy
Source
Advances in Materials Science and Engineering
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-04-16
Country of Publication
Egypt
No. of Pages
8
Abstract EN
As all bridges get deteriorated over time, structural health monitoring of these structures has become very important for the damage identification and maintenance work.
Evaluating a bridge’s health condition requires the testing of a variety of physical quantities including bridge dynamic responses and the evaluation of the functions of varied bridge subsystems.
In this study, both the acceleration of the deck and the dynamic rotational angle of the bearings in a long-span steel girder bridge were measured when the bridge system was excited by passing-by vehicles.
The nonstationary dynamical phenomena including vibration mode interactions and coupling are observed in response spectrogram.
To elaborate the phenomena, the linear vibration mode properties of the bridge are characterized by finite element analysis and are correlated with the specific modes in test.
A theoretical model is presented showing the mechanism of the mode coupling and instability originated from the friction effects in bearing.
This study offers some insights into the correlation between complex bridge vibrations and the bearing effects, which lays a foundation for the in situ health monitoring of bridge bearing by using dynamical testing.
American Psychological Association (APA)
Chen, Gang S.& Xiao, Feng& Zatar, Wael& Hulsey, J. Leroy. 2018. Characterization of Nonstationary Mode Interaction of Bridge by Considering Deterioration of Bearing. Advances in Materials Science and Engineering،Vol. 2018, no. 2018, pp.1-8.
https://search.emarefa.net/detail/BIM-1121093
Modern Language Association (MLA)
Chen, Gang S.…[et al.]. Characterization of Nonstationary Mode Interaction of Bridge by Considering Deterioration of Bearing. Advances in Materials Science and Engineering No. 2018 (2018), pp.1-8.
https://search.emarefa.net/detail/BIM-1121093
American Medical Association (AMA)
Chen, Gang S.& Xiao, Feng& Zatar, Wael& Hulsey, J. Leroy. Characterization of Nonstationary Mode Interaction of Bridge by Considering Deterioration of Bearing. Advances in Materials Science and Engineering. 2018. Vol. 2018, no. 2018, pp.1-8.
https://search.emarefa.net/detail/BIM-1121093
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1121093