Using Expert Opinion to Quantify Accuracy and Reliability of Nondestructive Evaluation on Bridges

Bridge inspection is an important phase in bridge management. In 2009, a joint American Society of Civil Engineers Structural Engineering Institute and the American Association of State Highway and Transportation Officials (AASHTO) Ad-Hoc group was created to identify the issues in bridge safety and to study current bridge practices. This group recommended: “A more rational, risk-based approach to determining the appropriate inspection intervals for bridges is needed, as opposed to a set twenty-four month cycle for all bridges.” The committee also recommended a wider use of Nondestructive Evaluation (NDE) methods. The difficulty in increasing the use of these NDE methods is the increased costs and time spent. One way to deal with this is to implement risk-based planning. Although to do this, the accuracy, reliability, bias, and cost of each test must be quantified. This study attempts to quantify these parameters for common bridge NDE methods. This was done through two methods. First, a literature review was performed to determine common NDE methods and data were found for these methods. Second, a Delphi method survey was conducted to develop a broader range of data that matches real life practices. All of the data were then analyzed and conclusions were drawn to quantify the various parameters for these NDE methods.

• Record URL:
  https://www.ugpti.org/resources/reports/details.php?id=819
• 
• Summary URL:
  https://rosap.ntl.bts.gov/view/dot/29498
• Record URL:
  https://rosap.ntl.bts.gov/view/dot/29497
• Supplemental Notes:
  • This document was sponsored by the U.S. Department of Transportation, University Transportation Centers Program.
• Corporate Authors:

  Colorado State University

  ,    

  Mountain-Plains Consortium

  North Dakota State University
  Fargo, ND  United States  58108

  Research and Innovative Technology Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Hesse, Alex
  • Atadero, Rebecca
  • Ozbek, Mehmet
• Publication Date: 2015-8

Language

• English

Media Info

• Media Type: Digital/other
• Features: Appendices; Figures; References; Tables;
• Pagination: 93p

Subject/Index Terms

• TRT Terms: Accuracy; Costs; Delphi method; Evaluation; Highway bridges; Inspection; Literature reviews; Nondestructive tests; Reliability; Surveys
• Subject Areas: Bridges and other structures; Highways; Maintenance and Preservation; I61: Equipment and Maintenance Methods;

Filing Info

• Accession Number: 01576236
• Record Type: Publication
• Report/Paper Numbers: MPC 15-288
• Files: UTC, NTL, TRIS, RITA, ATRI, USDOT
• Created Date: Sep 25 2015 4:17PM