Determining Time Variation of Cable Tension Forces in Suspended Bridges Using Time-Frequency Analysis
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...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2018-01-01
|
| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2018/1053232 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832555092730970112 |
|---|---|
| author | Gannon Stromquist-LeVoir Kevin F. McMullen Arash E. Zaghi Richard Christenson |
| author_facet | Gannon Stromquist-LeVoir Kevin F. McMullen Arash E. Zaghi Richard Christenson |
| author_sort | Gannon Stromquist-LeVoir |
| collection | DOAJ |
| description | 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. |
| format | Article |
| id | doaj-art-0a7de2b2bd1f47af862a17c9b052ff65 |
| institution | Kabale University |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-0a7de2b2bd1f47af862a17c9b052ff652025-02-03T05:49:36ZengWileyAdvances in Civil Engineering1687-80861687-80942018-01-01201810.1155/2018/10532321053232Determining Time Variation of Cable Tension Forces in Suspended Bridges Using Time-Frequency AnalysisGannon Stromquist-LeVoir0Kevin F. McMullen1Arash E. Zaghi2Richard Christenson3Department of Civil and Environmental Engineering, University of Connecticut, Storrs, CT 06269, USADepartment of Civil and Environmental Engineering, University of Connecticut, Storrs, CT 06269, USADepartment of Civil and Environmental Engineering, University of Connecticut, Storrs, CT 06269, USADepartment of Civil and Environmental Engineering, University of Connecticut, Storrs, CT 06269, USAA 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.http://dx.doi.org/10.1155/2018/1053232 |
| spellingShingle | Gannon Stromquist-LeVoir Kevin F. McMullen Arash E. Zaghi Richard Christenson Determining Time Variation of Cable Tension Forces in Suspended Bridges Using Time-Frequency Analysis Advances in Civil Engineering |
| title | Determining Time Variation of Cable Tension Forces in Suspended Bridges Using Time-Frequency Analysis |
| title_full | Determining Time Variation of Cable Tension Forces in Suspended Bridges Using Time-Frequency Analysis |
| title_fullStr | Determining Time Variation of Cable Tension Forces in Suspended Bridges Using Time-Frequency Analysis |
| title_full_unstemmed | Determining Time Variation of Cable Tension Forces in Suspended Bridges Using Time-Frequency Analysis |
| title_short | Determining Time Variation of Cable Tension Forces in Suspended Bridges Using Time-Frequency Analysis |
| title_sort | determining time variation of cable tension forces in suspended bridges using time frequency analysis |
| url | http://dx.doi.org/10.1155/2018/1053232 |
| work_keys_str_mv | AT gannonstromquistlevoir determiningtimevariationofcabletensionforcesinsuspendedbridgesusingtimefrequencyanalysis AT kevinfmcmullen determiningtimevariationofcabletensionforcesinsuspendedbridgesusingtimefrequencyanalysis AT arashezaghi determiningtimevariationofcabletensionforcesinsuspendedbridgesusingtimefrequencyanalysis AT richardchristenson determiningtimevariationofcabletensionforcesinsuspendedbridgesusingtimefrequencyanalysis |