EFFECT OF DAMAGE TO BRIDGES UNDER SEISMIC AND TSUNAMI HAZARDS ON PROBABILISTIC CONNECTIVITY OF ROAD NETWORK
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- AOKI Koki
- 早稲田大学大学院 創造理工学研究科 建設工学専攻
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- FUSE Yuzuki
- 早稲田大学大学院 創造理工学研究科 建設工学専攻
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- ISHIBASHI Hiroki
- 日本大学 工学部 土木工学科
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- AKIYAMA Mitsuyoshi
- 早稲田大学 創造理工学部 社会環境工学科
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- KOSHIMURA Shunichi
- 東北大学 災害科学国際研究所
Bibliographic Information
- Other Title
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- 地震動と津波を受ける橋梁の損傷が道路ネットワークの接続性に及ぼす影響の確率論的評価手法
Abstract
<p> This paper presents a methodology for estimating a connectivity of road network considering the vulnerability of bridges under seismic and tsunami hazards. With the aid of a geographic information system and graph theory, the deterioration of the bridge network’s connectivity can be easily estimated based on seismic and tsunami hazard assessments, and structural fragility estimation. Both uncertainties associated with fault movement estimations, spatial distribution of hazard intensities and structural vulnerability, and damage correlation among bridges are considered when estimating the probabilistic connectivity in Monte Carlo simulation. In an illustrative example, the bridge network affected by the anticipated Nankai Trough earthquake is analysed. Computational results demonstrate that the connectivity depends highly on spatial distribution of hazard intensities and the correlation among damage states of bridges.</p>
Journal
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- Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE))
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Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE)) 78 (4), I_127-I_137, 2022
Japan Society of Civil Engineers
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Details 詳細情報について
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- CRID
- 1390575130486939008
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- ISSN
- 21854653
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- Text Lang
- ja
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- Data Source
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- JaLC
- Crossref
- KAKEN
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- Abstract License Flag
- Disallowed