Resilience-based countermeasure strategy for bridges under multiple 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

This paper presents a methodology for identifying optimal pre-disaster strategies for bridges subjected to ground motion and tsunami. The seismic and tsunami hazard curves are estimated based on the Monte Carlo simulation considering the uncertainties associated with fault movement. The seismic and tsunami fragility curves of a bridge pier and bearing are developed by numerical methods. The optimization problem for maximizing the benefit-cost ratio and the resilience is solved to identify the bridges necessary to be retrofitted before the event or replaced immediately after the event and find the optimal countermeasures based on the post-disaster road network functionality depending on the damage state of individual bridges. The application to the road network in Wakayama City expected to be affected by the anticipated Nankai Trough earthquake demonstrates that the proposed method can provide the optimal strategies for bridge management to enhance the road network resilience under budget constraints.

本文言語英語
ホスト出版物のタイトルBridge Maintenance, Safety, Management, Digitalization and Sustainability - Proceedings of the 12th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2024
編集者Jens Sandager Jensen, Dan M. Frangopol, Jacob Wittrup Schmidt
出版社CRC Press/Balkema
ページ610-616
ページ数7
ISBN(印刷版)9781032770406
DOI
出版ステータス出版済み - 2024
イベント12th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2024 - Copenhagen, デンマーク
継続期間: 24 6月 202428 6月 2024

出版物シリーズ

名前Bridge Maintenance, Safety, Management, Digitalization and Sustainability - Proceedings of the 12th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2024

会議

会議12th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2024
国/地域デンマーク
CityCopenhagen
Period24/06/2428/06/24

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