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Vibration Frequencies Extraction of the Forth Road Bridge Using High Sampling GPS Data
Joint Authors
Wang, Jian
Meng, Xiaolin
Qin, Changbiao
Yi, Jiaohong
Source
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-18, 18 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-12-24
Country of Publication
Egypt
No. of Pages
18
Main Subjects
Abstract EN
This paper proposes a scheme for vibration frequencies extraction of the Forth Road Bridge in Scotland from high sampling GPS data.
The interaction between the dynamic response and the ambient loadings is carefully analysed.
A bilinear Chebyshev high-pass filter is designed to isolate the quasistatic movements, the FFT algorithm and peak-picking approach are applied to extract the vibration frequencies, and a GPS data accumulation counter is suggested for real-time monitoring applications.
To understand the change in the structural characteristics under different loadings, the deformation results from three different loading conditions are presented, that is, the ambient circulation loading, the strong wind under abrupt wind speed change, and the specific trial with two 40 t lorries passing the bridge.
The results show that GPS not only can capture absolute 3D deflections reliably, but also can be used to extract the frequency response accurately.
It is evident that the frequencies detected using the filtered deflection time series in different direction show quite different characteristics, and more stable results can be obtained from the height displacement time series.
The frequency responses of 0.105 and 0.269 Hz extracted from the lateral displacement time series correlate well with the data using height displacement time series.
American Psychological Association (APA)
Wang, Jian& Meng, Xiaolin& Qin, Changbiao& Yi, Jiaohong. 2015. Vibration Frequencies Extraction of the Forth Road Bridge Using High Sampling GPS Data. Shock and Vibration،Vol. 2016, no. 2016, pp.1-18.
https://search.emarefa.net/detail/BIM-1120224
Modern Language Association (MLA)
Wang, Jian…[et al.]. Vibration Frequencies Extraction of the Forth Road Bridge Using High Sampling GPS Data. Shock and Vibration No. 2016 (2016), pp.1-18.
https://search.emarefa.net/detail/BIM-1120224
American Medical Association (AMA)
Wang, Jian& Meng, Xiaolin& Qin, Changbiao& Yi, Jiaohong. Vibration Frequencies Extraction of the Forth Road Bridge Using High Sampling GPS Data. Shock and Vibration. 2015. Vol. 2016, no. 2016, pp.1-18.
https://search.emarefa.net/detail/BIM-1120224
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1120224