Optimal intervention policy of bridges considering earthquake occurrence probability increasing over time

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In recent years, the possibility that damage of infrastructure at the time of earthquake could change depend-ing on their deterioration conditions has been noted by analytical calculations, mechanistic simulations,etc.Also,itisgenerallysaidthatoccurrenceprobabilitiesoftheinter-plateearthquakesareincreasing over time. They imply that i) intervention policies of infrastructure need to be determined internalizing risk of earthquake, and ii) an optimal intervention policy would change over time as the earthquake occurrence probability increases. In this study, targeting a bridge element whose deterioration process is modeled as a Markov process, the optimal intervention policy is calculated to minimize its life cycle cost considering risks of both deterioration and earthquake, supposing damage of the bridge element by earthquake varies depending on its condition state. Then, under the situation where the earthquake occurrence probability is increasing over time supposing an actual earthquake, it is investigated how the optimal intervention policy of the bridge element would change over time.

Original languageEnglish
Title of host publicationLife-Cycle Civil Engineering
Subtitle of host publicationInnovation, Theory and Practice - Proceedings of the 7th International Symposium on Life-Cycle Civil Engineering, IALCCE 2020
EditorsAirong Chen, Xin Ruan, Dan M. Frangopol
PublisherCRC Press/Balkema
Pages1077-1081
Number of pages5
ISBN (Electronic)9780367360191
DOIs
Publication statusPublished - 2020
Event7th International Symposium on Life-Cycle Civil Engineering, IALCCE 2020 - Shanghai, China
Duration: 2020 Oct 272020 Oct 30

Publication series

NameLife-Cycle Civil Engineering: Innovation, Theory and Practice - Proceedings of the 7th International Symposium on Life-Cycle Civil Engineering, IALCCE 2020

Conference

Conference7th International Symposium on Life-Cycle Civil Engineering, IALCCE 2020
Country/TerritoryChina
CityShanghai
Period20/10/2720/10/30

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