Risk-based bridge inspection practices.

Details

• Creators:
  Reising, Rebecca S. ; Connor, Robert J. ; Lloyd, Jason B. 
• Corporate Creators:
  Purdue University. Joint Transportation Research Program
• Corporate Contributors:
  United States. Federal Highway Administration ; Indiana. Dept. of Transportation
• Subject/TRT Terms:
  • Bridges
  • Inspection
  • Needs assessment
  • Risk analysis
  • Case studies
  • Scheduling
  • Structural analysis
• Publication/ Report Number:
  FHWA/IN/JTRP-2014/11
• Resource Type:
  Tech Report
• Geographical Coverage:
  Indiana
• Corporate Publisher:
  Purdue University. Joint Transportation Research Program
• Abstract:
  Improving bridge safety, reliability, and the allocation of bridge inspection resources are the goals of the proposed risk‐based bridge  ; inspection practices. Currently, most bridges in the United States are inspected at a fixed calendar interval of 24 months, without regard  ; to the  condition  of the  bridge.  Newer  bridges  with  little  or  no  damage  are  inspected  with the same  frequency  as  older,  more  ; deteriorated bridges thus creating inefficiency in the allocation of inspection resources.  ;   ; The proposed methodology incorporates reliability theory and expert elicitation from the Indiana Department of Transportation’s Risk  ; Assessment Panel, developed during this research, to rationally determine bridge inspection needs. Assessments are made based on the  ; likelihood and consequence of failure for specific bridge components. The likelihood of failure is determined through attributes based on  ; design, loading, and condition characteristics while the consequence of failure is based on expected structural capacity, public safety,  ; and serviceability. By combining the expressions of likelihood and consequence for each component, an optimum inspection interval for  ; the entire bridge can be determined through the use of risk matrices.  ;   ; The methodology was evaluated through case studies involving Indiana bridges. Over 30 years of historical inspection reports were  ; utilized in the back‐casting process to evaluate deterioration levels and assess the adequacy of the risk criteria. Results of the case  ; studies conducted during the research indicated that the risk analysis procedures provided suitable inspection intervals ranging from 24  ; to 72 months for Indiana bridges. 
  More +
• Format:
  PDF
• Funding:
  SPR-3653
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/28396/dot_28396_DS1.pdf
• File Type:
  [PDF - 37.46 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:10c9df16a85016ca5c016de4e6e960f350c00294bc456b6338a57cb6a2566f4c