Real-time hybrid experimental-numerical simulation of bridge infrastructure subject to cascading earthquake-tsunami hazards

Bridge strength can be significantly compromised when the bridge is subjected to cascading earthquake-tsunami scenarios. However, little data exists to support the simulation of bridges to both earthquake and tsunami loading. Test data under individual earthquake and tsunami hazards is available, but space is limited in wave facilities, necessitating small-scale structural models. Scaling laws then make it difficult to incorporate structural damage from previous seismic loading into hydrodynamic experiments. Although numerical models can be analyzed using full-scale bridge properties, few software can apply both seismic and tsunami loading (with structural damage) in a single analysis. Particle Finite-Element Method (PFEM)] can simulate the response of flexible, inelastic structures to earthquake and tsunami events, including fluid-structure interaction (FSI) effects between the waves and structure. However, these FSI approaches are subject to significant modeling uncertainties and need test data to validate their results. Real-time hybrid simulation (RTHS) – a testing technique that combines physical experiments and numerical models – can alleviate the aforementioned constraints and provide data to validate computational FSI models. This project will develop an RTHS approach to study the vulnerability of bridges subjected to subsequent earthquake-tsunami loading.

• Record URL:
  http://depts.washington.edu/pactrans/research/projects/real-time-hybrid-experimental-numerical-simulation-of-bridge-infrastructure-subject-to-cascading-earthquake-tsunami-hazards/

Language

• English

Project

• Status: Active
• Funding: $80000
• Contract Numbers:

  69A3551747110

• Sponsor Organizations:

  Office of the Assistant Secretary for Research and Technology

  University Transportation Centers Program
  Department of Transportation
  Washington, DC  United States  20590
• Managing Organizations:

  Pacific Northwest Transportation Consortium

  University of Washington
  More Hall Room 112
  Seattle, WA  United States  98195-2700
• Project Managers:

  Simpson, Barbara

• Performing Organizations:

  Oregon State University, Corvallis

  Department of Civil Engineering
  202 Apperson Hall
  Corvallis, OR  United States  97331-2302
• Principal Investigators:

  Simpson, Barbara

• Start Date: 20200816
• Expected Completion Date: 20220815
• Actual Completion Date: 0
• USDOT Program: University Transportation Centers Program

Subject/Index Terms

• TRT Terms: Bridges; Earthquakes; Finite element method; Fluid dynamics; Risk assessment; Simulation; Tsunamis; Validation
• Subject Areas: Bridges and other structures; Highways; Planning and Forecasting; Security and Emergencies;

Filing Info

• Accession Number: 01764460
• Record Type: Research project
• Source Agency: Pacific Northwest Transportation Consortium
• Contract Numbers: 69A3551747110
• Files: UTC, RIP
• Created Date: Feb 4 2021 1:48PM