Long-Term Bridge Performance (LTBP) Program Protocols, Version 1

Long-Term Bridge Performance (LTBP) Program Protocols, Version 1

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Long-Term Bridge Performance (LTBP) Program Protocols, Version 1
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  • Abstract:
    The Long-Term Bridge Performance (LTBP) Program is a long-term research effort to collect scientific performance data from a representative sample of bridges in the United States. Data will be collected for in-service bridges using a variety of techniques. These data will be supplemented with legacy data from design plans, design and construction specifications, as-built plans and construction records, inspection and maintenance records, weather records, and traffic data. To maintain consistency in the manner in which data are collected and stored, a set of protocols has been developed. These protocols provide guidance on what kinds of information to obtain from existing bridge records and how each field testing activity is to be conducted; how to identify and classify the defects and how to measure their extent; and how to document the location and severity of the defect in the bridge element being evaluated. The protocols also specify the accuracy to which defect measurements are to be recorded. This report presents protocols for the collection and mining of legacy data, site preparation, visual inspection, sampling and testing of materials, nondestructive evaluation, and data storage and management. Future versions of this report will include additional protocols covering other activities, data collection methods, and analysis and reporting protocols for the LTBP Program.
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