Earthquake fragility assessment of curved and skewed bridges in Mountain West region : research brief.

Details

• Alternative Title:
  Project title : framework of performance-based earthquake design of curved and skewed bridges
• Creators:
  Chen, Suren ; Chen, Luke
• Corporate Creators:
  Colorado State University. Dept. of Civil and Environmental Engineering
• Corporate Contributors:
  Mountain Plains Consortium ; University Transportation Centers Program (U.S.) ; United States. Dept. of Transportation. Research and Innovative Technology Administration
• Subject/TRT Terms:
  • Reinforced concrete bridges
  • Skew bridges
  • Curved bridges
  • Earthquake resistant design
  • Earthquakes
  • Bridge design
  • Geometric design
  • Risk assessment
  • Seismicity
• Publication/ Report Number:
  MPC 16-312 (project 415
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States ; Western States
• Corporate Publisher:
  Mountain Plains Consortium
• Abstract:
  the ISSUE ; the RESEARCH ; Earthquake Fragility ; Assessment of Curved ; and Skewed Bridges in ; Mountain West Region ; Reinforced concrete bridges with both skew and curvature are common in areas with complex terrains. ; These bridges are irregular and complex geometric designs, and comprehensive seismic risk studies ; are not always required. As a result, little knowledge is available about actual seismic risks for these ; bridges in areas of low-to-moderate seismic activity. ; Analytical fragility studies were carried out on four typical bridge designs with different geometric ; configurations (i.e. straight, curved, skewed, skewed and curved) in the mountain west region of the ; United States. The influences of skewed and curved geometric configurations on bridge component ; seismic fragility were investigated by developing analytical fragility curves. A typical 3-span concrete ; straight bridge located in Denver, CO, was selected as the prototype bridge, from which three bridge ; models with complex geometric variations were modified. Based on the nonlinear FEM analysis results ; of these bridge models, fragility analyses were carried out considering the uncertainties of the bridge ; model and ground motions. Comparative studies also were conducted to investigate influences from ; the geometric configurations.
  More +
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/31509/dot_31509_DS1.pdf
• File Type:
  [PDF - 970.74 KB]
• Collection(s):
  University Transportation Centers ; US Transportation Collection
• Main Document Checksum:
  urn:sha256:03d7395fec6314b58eaa9c68d410da2606551c3e3abc303418ae8e0ca1f55896