Using expert opinion to quantify accuracy and reliability of nondestructive evaluation on bridges.

Details

• Creators:
  Hesse, Alex ; Atadero, Rebecca ; Ozbek, Mehmet
• Corporate Creators:
  Colorado State University
• Corporate Contributors:
  United States. Dept. of Transportation. Research and Innovative Technology Administration
• Subject/TRT Terms:
  • Bridges
  • Inspection
  • Nondestructive tests
  • Accuracy
  • Reliability
  • Delphi method
  • Evaluation
  • Literature reviews
  • Surveys
• Publication/ Report Number:
  MPC 15-288
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Corporate Publisher:
  Mountain Plains Consortium
• Description:
  Bridge inspection is an important phase in bridge management. In 2009, a joint American Society of Civil
  
  Engineers Structural Engineering Institute and 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 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.
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/29497/dot_29497_DS1.pdf
• File Type:
  [PDF - 3.43 MB]
• Collection(s):
  University Transportation Centers ; US Transportation Collection
• Main Document Checksum:
  urn:sha256:a615705964bb1d3667516c4fe876a79165e2fadaab72763cbf69011dbaa91b40