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

Details

• Creators:
  Chen, Luke ; Chen, Suren
• Corporate Creators:
  Colorado State University. Dept. of Civil and Environmental Engineering
• Corporate Contributors:
  Mountain Plains Consortium ; University Transportation Centers Program (U.S.)
• 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
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States ; Western States
• Corporate Publisher:
  Mountain Plains Consortium
• Abstract:
  Reinforced concrete (RC) bridges with both skew and curvature are common in areas with ; complex terrains. Skewed and/or curved bridges were found in existing studies to exhibit more ; complicated seismic performance than straight bridges, however the related seismic risk studies ; are still rare. These bridges have irregular and complex geometric designs, and comprehensive ; seismic analysis is not always required. As a result, little knowledge about actual seismic risks ; for these bridges in low-to-moderate regions is available. To provide more insightful ; understanding of the seismic risks, 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. Results show curved and skewed ; geometries can considerably affect the bridge seismic fragility in a complex manner. Conducting ; a detailed seismic risk assessment of skewed and curved bridges is needed in low-to-moderate ; seismic regions.
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• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/31508/dot_31508_DS1.pdf
• File Type:
  [PDF - 2.92 MB]
• Collection(s):
  University Transportation Centers ; US Transportation Collection
• Main Document Checksum:
  urn:sha256:0f9689f3e00ebcf0c90d8f8d2c5b770e744d518c4f6738ad99cd094041e56191