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

Singhal, Saurabh; Zareian, Farzin

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

2025-04-20
By Singhal, Saurabh ; Zareian, Farzin

File Language:

English

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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:

Adjustment Factor Bridge Management Systems Bridges Coefficient Of Variation Coefficients Columns Cost Effectiveness Earthquakes Probabilistic Design Probability RBSD Reliability Reliability Index Resilience (Materials) Return Period Seismicity Simulation
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
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha-512:7ff3a5b0a84d14f3193aa174a2f41baebb8757454d524b130baef6e10e7bb72f00f4aa04560120d783cfc8938aa6d2e7e4cc5d9f71f8d34658feabf017c5aca6
Download URL:

https://rosap.ntl.bts.gov/view/dot/86982/dot_86982_DS1.pdf
File Type:

[PDF - 12.28 MB ]

File Language:

English

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