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Seismic and Tsunami Resiliency of Bridge and Transportation Structures

 Seismic and Tsunami Resiliency of Bridge and Transportation Structures
Author(s):
Presented at IABSE Congress: Bridges and Structures: Connection, Integration and Harmonisation, Nanjing, People's Republic of China, 21-23 September 2022, published in , pp. 35-41
DOI: 10.2749/nanjing.2022.0035
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Earthquakes can happen in Washington State at any time, and history indicates there may be substantial shifting of land during a seismic event. The State Department of Transportation’s manages appr...
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Bibliographic Details

Author(s): (State Bridge & Structures Design Engineer WSDOT, USA Adjunct Professor, Saint Martin’s University, USA)
Medium: conference paper
Language(s): English
Conference: IABSE Congress: Bridges and Structures: Connection, Integration and Harmonisation, Nanjing, People's Republic of China, 21-23 September 2022
Published in:
Page(s): 35-41 Total no. of pages: 7
Page(s): 35-41
Total no. of pages: 7
DOI: 10.2749/nanjing.2022.0035
Abstract:

Earthquakes can happen in Washington State at any time, and history indicates there may be substantial shifting of land during a seismic event. The State Department of Transportation’s manages approximately 18,500 highway lane miles and more than 3,600 bridges on the state’s highway system. One of the agencies objectives is to ensure that state highways will be able to provide emergency responders access to damaged portions of the community quickly to provide Recovery life-saving services. State Highways will also need to provide the capability for the state economy and the movement of freight and goods to be re- stored as quickly as possible.

In an earthquake, damage to infrastructure bridges is more closely related to ground motion rather than magnitude. In addition, the ground type can significantly influence ground acceleration. Base on the geographic area and historical data geologists can create seismic hazard maps which show likely earth-quake ground motion zones. This paper discusses the seismic design requirements for bridges and challenges to achieve these requirements for new and existing bridges.

Keywords:
performance seismic tsunami resiliency
Copyright: © 2022 International Association for Bridge and Structural Engineering (IABSE)
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