Long-term maintenance monitoring demonstration on a movable bridge.
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Long-term maintenance monitoring demonstration on a movable bridge.

Filetype[PDF-2.49 MB]


English
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Details:

  • Creators:
  • Corporate Creators:
    University of Central Florida. Dept. of Civil, Environmental and Construction Engineering
  • Corporate Contributors:
    Florida. Department of Transportation. Research Center
  • Subject/TRT Terms:
  • Resource Type:
    Tech Report
  • Geographical Coverage:
    Florida
  • Edition:
    Final report; Jan. 6, 2011-Sept. 30, 2011.
  • Corporate Publisher:
    University of Central Florida
  • Abstract:
    The maintenance costs related to movable bridges are considerably higher than those of fixed bridges, mostly

    because of the complex interaction of the mechanical, electrical and structural components. A malfunction of any

    component can cause an unexpected failure of bridge operation, which creates problems for both land and

    maritime traffic. Maintenance processes associated with the operation system and mechanical parts require

    special expertise. 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. A number of

    tests and monitoring of the bridge yielded a wide variety of data, which were analyzed in detail with methods

    developed by the PI and his research team, and the results obtained at the end of the project were reported to

    FDOT in a detailed report. After the completion of this previous project, the bridge was already 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. This extension project

    therefore focuses on repairing the monitoring system, which was affected by the painting operation, collecting and

    analyzing more data and preparing the system for FDOT. First, 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 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

    given in the maintenance logs. Finally, recommendations are provided based on the findings and experiences

    from this project.

  • Format:
    PDF
  • Funding:
    BDK78 977-07
  • Collection(s):
  • Main Document Checksum:
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