Risk estimation of bridges and bridge networks under seismic and subsequent tsunami hazards

Hiroki Ishibashi, T. Kojima, K. Nanami, M. Akiyama, D. M. Frangopol

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

Abstract

A procedure for estimating risk of road structures subjected to seismic ground motion and subsequent tsunami is proposed. In the 2011 Great East Japan earthquake, many bridges and embankments were severely damaged due to the strong ground motion and/or subsequent tsunami. The damage to these structures caused significant economic losses associated with the reconstruction and disruption of the road network. Given a limited budget, it is important to estimate the economic loss due to the damage to structures in road networks and determine the retrofitting prioritization for effective risk mitigation. In an illustrative example, the risk of road networks under both seismic and tsunami hazards caused by the anticipated Nankai Trough earthquake is estimated. The numerical results show that the retrofitting prioritization can be determined by comparing the risk of road networks.

Original languageEnglish
Title of host publicationEASEC16 - Proceedings of the 16th East Asian-Pacific Conference on Structural Engineering and Construction, 2019
EditorsChien Ming Wang, Sritawat Kitipornchai, Vinh Dao
PublisherSpringer Science and Business Media Deutschland GmbH
Pages1189-1194
Number of pages6
ISBN (Print)9789811580789
DOIs
Publication statusPublished - 2021
Event16th East Asian-Pacific Conference on Structural Engineering and Construction, 2019 - Brisbane, Australia
Duration: 2019 Dec 32019 Dec 6

Publication series

NameLecture Notes in Civil Engineering
Volume101
ISSN (Print)2366-2557
ISSN (Electronic)2366-2565

Conference

Conference16th East Asian-Pacific Conference on Structural Engineering and Construction, 2019
CountryAustralia
CityBrisbane
Period19/12/319/12/6

Keywords

  • Bridge
  • Risk
  • Road network
  • Seismic hazard
  • Tsunami hazard

ASJC Scopus subject areas

  • Civil and Structural Engineering

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