Caltrans Risk Based Seismic Design (RBSD) – Seismic Demand Parameters for Ordinary Bridge Columns in California

Details

• Creators:
  Singhal, Saurabh ; Zareian, Farzin
• Corporate Creators:
  National Concrete Pavement Technology Center and Center for Earthworks Engineering Research (CEER)
• Corporate Contributors:
  California. Department of Transportation. Department of Research, Innovation and Systems Information ; State of California. Department of Transportation
• Subject/TRT Terms:
  • Bridge management systems
  • Bridges
  • Earthquakes
  • Probability
  • Coefficients
  • Reliability
  • Seismicity
  • Columns
  • Simulation
  • Resilience (Materials)
  More +
• Publication/ Report Number:
  CA25-3677
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States ; California
• Edition:
  Final Report: 03/03/2021 – 02/28/2023
• Corporate Publisher:
  California. Department of Transportation. Department of Research, Innovation and System Information
• Abstract:
  The Caltrans Risk-Based Seismic Design (CT-RBSD) framework is a performance-based bridge design methodology that uses reliability theory to assess the probability of seismic damage in bridge columns. Building on experimental fragility curves and statistical modeling, the approach enables engineers to design with explicit consideration of post-earthquake damage states. This study significantly enhances CT-RBSD by developing high-resolution seismic demand parameter maps across California and expanding the design basis to include a broader range of column geometries. It also integrates advanced ground motion simulations and recommends the adoption of updated seismic hazard models, offering engineers more precise tools for resilient and cost-effective bridge design in earthquake-prone regions.
• Format:
  PDF
• Funding:
  65A0774 TO 003
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/86982/dot_86982_DS1.pdf
• File Type:
  [PDF - 12.28 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:7ff3a5b0a84d14f3193aa174a2f41baebb8757454d524b130baef6e10e7bb72f00f4aa04560120d783cfc8938aa6d2e7e4cc5d9f71f8d34658feabf017c5aca6