A procedure for estimating the risk and resilience of bridge networks under both seismic and tsunami hazards

Hiroki Ishibashi, T. Kojima, M. Akiyama, D. M. Frangopol, S. Koshimura

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

To develop disaster mitigation measures in regions affected by both ground motions and tsunamis, it is important to consider the effects of both seismic and tsunami hazards and assess the social impacts associated with economic losses and reduced network functionality. In this paper, a procedure is presented for estimating the risk and resilience of bridge networks under both seismic and tsunami hazards. Using the proposed framework, it is possible to estimate risk as the economic loss and resilience as the functionality and recovery time of a network after an earthquake. In an illustrative example, the road networks in two Japanese cities expected to be affected by the anticipated Nankai Trough earthquake, which would cause strong ground motions and a subsequent tsunami, are analyzed. Using risk and resilience as performance indicators for social impacts, the effectiveness of retrofitting a road structure can be quantified. Finally, the retrofitting prioritization for various structures can be determined.

Original languageEnglish
Title of host publicationBridge Maintenance, Safety, Management, Life-Cycle Sustainability and Innovations - Proceedings of the 10th International Conference on Bridge Maintenaince, Safety and Management, IABMAS 2020
EditorsHiroshi Yokota, Dan M. Frangopol
PublisherCRC Press/Balkema
Pages2101-2107
Number of pages7
ISBN (Electronic)9780367232788
DOIs
Publication statusPublished - 2021
Event10th International Conference on Bridge Maintenaince, Safety and Management, IABMAS 2020 - Sapporo, Japan
Duration: 2021 Apr 112021 Apr 15

Publication series

NameBridge Maintenance, Safety, Management, Life-Cycle Sustainability and Innovations - Proceedings of the 10th International Conference on Bridge Maintenaince, Safety and Management, IABMAS 2020

Conference

Conference10th International Conference on Bridge Maintenaince, Safety and Management, IABMAS 2020
Country/TerritoryJapan
CitySapporo
Period21/4/1121/4/15

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Safety, Risk, Reliability and Quality

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