Validation of Tsunami Design Guidelines for Coastal Bridges
This paper details a Transportation Pooled Fund Study, TPF-5(307), that included Alaska, California, Hawaii, Oregon (lead state), Washington, and the Federal Highway Administration. The research goal was to update guidelines as a foundation for review by the respective AASHTO sub-committee(s). This report focused on bridges for the Western United States. Five major efforts were completed: 1. Updated probabilistic tsunami hazard mapping to include wave-heights, velocities, and inundation levels at the 1000-year recurrence interval. This was completed for all aforementioned states at varying detail (10m through 60m); 2. Uncertainties and bias between models were examined to find areas where they agree and potential areas where the study could identify conservative estimates for optimization. 3. Analysis of site-specific tsunami hazards was developed. Two methods (level 1 and level 2) are presented to detail local tsunami hydrodynamics; 4. Loading are detailed and recommendations for equations presented based on research findings. Three load cases, including conditions showing upward lift were modeled and equated. Bridge skew, slope, and super-elevation were examined. Debris was considered. 5. Geotechnical considerations were also discussed.
- Record URL:
- Record URL:
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Corporate Authors:
Oregon Department of Transportation
Research Section
555 13th Street NE
Salem, OR United States 97301Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC United States 20590 -
Authors:
- Lynett, Patrick
- 0000-0002-2856-9405
- Thio, Hong Kie
- 0000-0002-9051-9601
- Scott, Michael
- 0000-0001-5898-5090
- Murphy, Tom
- 0000-0002-1474-9181
- Shantz, Tom
- 0000-0002-0534-3024
- Shen, Jian-Dzwan
- 0000-0001-6982-7290
- Publication Date: 2021-1
Language
- English
Media Info
- Media Type: Digital/other
- Edition: Final Report
- Features: Appendices; Figures; Maps; Photos; References; Tables;
- Pagination: 133p
Subject/Index Terms
- TRT Terms: Bridge design; Bridges; Coastal engineering; Coasts; Dynamic loads; Geotechnical engineering; Hydrodynamics; Tsunamis
- Geographic Terms: Alaska; California; Hawaii; Oregon; Washington (State)
- Subject Areas: Bridges and other structures; Design; Environment; Geotechnology; Highways; Hydraulics and Hydrology; Security and Emergencies;
Filing Info
- Accession Number: 01765679
- Record Type: Publication
- Report/Paper Numbers: FHWA-OR-RD-21-09, TPF 5(307)
- Files: NTL, TRIS, ATRI, USDOT, STATEDOT
- Created Date: Feb 22 2021 10:22AM