Bridge System Reliability and Reliability-Based Redundancy Factors

Details

• Creators:
  Frangopol, Dan M. ; Kozy, Brian M. ; Zhu, Benjin ; Sabatino, Samantha
• Corporate Creators:
  Lehigh University. ATLSS Engineering Research Center
• Corporate Contributors:
  United States. Department of Transportation. Federal Highway Administration. Office of Infrastructure
• Subject/TRT Terms:
  • Bridges
  • Reliability (Statistics)
  • Redundancy
  • Bridges
  • Reliability
  • Redundancy
  • Structural reliability
  • Structural redundancy
  • System reliability
  • Redundancy factor
• Publication/ Report Number:
  FHWA-HIF-19-093
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Corporate Publisher:
  United States. Department of Transportation. Federal Highway Administration. Office of Infrastructure
• Abstract:
  This report proposes a redundancy factor to provide improved bridge system reliability using conventional component-based limit-state design. The redundancy factor is based on a system reliability assessment, and it provides a missing link between bridge component reliability and bridge system reliability. It is intended to provide more uniform bridge system reliability across bridge system types. Focus is placed on critical (i.e., strength) limit states. The effects of the system model type, correlation among the component resistances, and coefficients of variation for the component load effects and resistances on the system reliability and the redundancy factor are shown for systems with up to 100 components.
• Format:
  PDF
• Funding:
  DTFH61-11-H-00027
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/50755/dot_50755_DS1.pdf
• File Type:
  [PDF - 3.98 MB]
• Collection(s):
  Federal Highway Administration
• Main Document Checksum:
  urn:sha-512:82d176c844c43878e004c429feda77d4d07ba65818a224a5682757ef454d69a5afd7357b7e0befe12a6e4b615992550b6a7f7b17b7f4febb58be6872f1a07a68