Details:

Creators:
Catbas, F. Necati ; Malekzadeh, Masoud ; Khuc, Tung
Catbas, F. Necati ; Malekzadeh, Masoud ; Khuc, Tung Less -
Corporate Creators:
University of Central Florida. Dept. of Civil, Environmental and Construction Engineering
Subject/TRT Terms:
[+]
Data Collection Inspection Maintenance Monitoring Movable Bridges Sensors Signal Processing Statistical Analysis
Publication/ Report Number:
BDK78 977-10
Resource Type:
Tech Report
Geographical Coverage:
Florida
Corporate Publisher:
Florida. Dept. of Transportation. Research Center
Abstract:
Movable bridges have particular maintenance issues, which cost considerably more than those of fixed bridges,

mostly because of the complex interaction of the mechanical, electrical and structural components. In order to track

maintenance and operational performance, a comprehensive monitoring system was implemented on Sunrise

Bridge (Ft. Lauderdale) to track the behavior and condition of several critical mechanical, electrical and structural

components. In this project, a number of statistical analysis and machine learning-based methods were developed

and employed to track the operation of the mechanical components. After the completion of the previous phases

of the project, the bridge was scheduled for painting; however, the monitoring system was significantly damaged

during the preparation, sandblasting and painting despite the considerable efforts of FDOT personnel to protect the

system. The research team focused on repairing the monitoring system, which was affected by the painting

operation, collecting and analyzing more data and preparing the system for FDOT. In this phase, the monitoring

system was maintained. Details of the field work conducted to repair the damaged monitoring system are presented.

Then, analysis of data that were collected after the monitoring system was repaired is presented for different

mechanical components. The baseline response and the thresholds for acceptable behavior were established.

During this phase of the project, unanticipated behaviors were observed for two components (one at the span locks

and one at the gearbox) at two different times. These findings indicating the unanticipated behavior using the

monitoring system are also corroborated with the independent maintenance reports. These changes in behavior

required maintenance work at the span lock and gearbox as noted in the maintenance logs. Finally,

recommendations are provided based on the findings and experiences from this project.


Format:
PDF
Collection(s):
US Transportation Collection
Main Document Checksum:
[+]
urn:sha256:377b6145774c6165901af098fb0a8a62094a301c75465aaae9e45cab37e955a2
Download URL:
https://rosap.ntl.bts.gov/view/dot/26719/dot_26719_DS1.pdf
File Type:

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