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Determining Time Variation of Cable Tension Forces in Suspended Bridges Using Time-Frequency Analysis
Joint Authors
Stromquist-LeVoir, Gannon
McMullen, Kevin F.
E. Zaghi, Arash
Christenson, Richard
Source
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-06-05
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Abstract EN
A feasibility study was conducted to develop a novel method to determine the temporal changes of tensile forces in bridge suspender cables using time-frequency analysis of ambient vibration measurements.
An analytical model of the suspender cables was developed to evaluate the power spectral density (PSD) function of a cable with consideration of cable flexural stiffness.
Discrete-time, short-time Fourier transform (STFT) was utilized to analyze the recorded acceleration histories in both time and frequency domains.
A mathematical convolution of the analytical PSD function and time-frequency data was completed to evaluate changes in cable tension force over time.
The method was implemented using acceleration measurements collected from an in-service steel arch bridge with a suspended deck to calculate the temporal variation in cable forces from the vibration measurements.
The observations served as proof of concept that the proposed method may be used for cable fatigue life calculations and bridge weigh-in-motion studies.
American Psychological Association (APA)
Stromquist-LeVoir, Gannon& McMullen, Kevin F.& E. Zaghi, Arash& Christenson, Richard. 2018. Determining Time Variation of Cable Tension Forces in Suspended Bridges Using Time-Frequency Analysis. Advances in Civil Engineering،Vol. 2018, no. 2018, pp.1-13.
https://search.emarefa.net/detail/BIM-1115320
Modern Language Association (MLA)
Stromquist-LeVoir, Gannon…[et al.]. Determining Time Variation of Cable Tension Forces in Suspended Bridges Using Time-Frequency Analysis. Advances in Civil Engineering No. 2018 (2018), pp.1-13.
https://search.emarefa.net/detail/BIM-1115320
American Medical Association (AMA)
Stromquist-LeVoir, Gannon& McMullen, Kevin F.& E. Zaghi, Arash& Christenson, Richard. Determining Time Variation of Cable Tension Forces in Suspended Bridges Using Time-Frequency Analysis. Advances in Civil Engineering. 2018. Vol. 2018, no. 2018, pp.1-13.
https://search.emarefa.net/detail/BIM-1115320
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1115320