Methodology for determining optimal countermeasure for bridges under seismic and tsunami hazards

H. Ishibashi, M. Akiyama, S. Koshimura

研究成果: 書籍の章/レポート/Proceedings会議への寄与査読

抄録

A methodology for determining the optimal countermeasure for bridges subjected to ground motion and tsunami is proposed. Seismic and tsunami fragility curves of a bridge pier and bearing are developed considering the effects of seismic damage prior to tsunami action. The structural vulnerabilities against horizontal and vertical forces are investigated separately in this paper. Seismic and tsunami hazard curves are obtained assuming the occurrence of an earthquake. Uncertainties associated with fault movement, hazard intensity and structural vulnerability are considered based on Monte Carlo simulation. The expected recovery time of bridges (i.e. risk) is estimated based on the failure probabilities of bridge piers and bearings, and used to determine the optimal countermeasure for bridges. As an illustrative example, the proposed methodology is applied to bridges which would be affected by the anticipated Nankai Trough earthquake.

本文言語英語
ホスト出版物のタイトルLife-Cycle of Structures and Infrastructure Systems - Proceedings of the 8th International Symposium on Life-Cycle Civil Engineering, IALCCE 2023
編集者Fabio Biondini, Dan M. Frangopol
出版社CRC Press/Balkema
ページ899-905
ページ数7
ISBN(印刷版)9781003323020
DOI
出版ステータス出版済み - 2023
イベント8th International Symposium on Life-Cycle Civil Engineering, IALCCE 2023 - Milan, イタリア
継続期間: 2 7月 20236 7月 2023

出版物シリーズ

名前Life-Cycle of Structures and Infrastructure Systems - Proceedings of the 8th International Symposium on Life-Cycle Civil Engineering, IALCCE 2023

会議

会議8th International Symposium on Life-Cycle Civil Engineering, IALCCE 2023
国/地域イタリア
CityMilan
Period2/07/236/07/23

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