FRAMEWORK FOR ESTIMATING THE RELIABILITY OF BRIDGES AND EMBANKMENTS UNDER BOTH SEISMIC AND TSUNAMI HAZARDS: A CASE STUDY OF THE ANTICIPATED NANKAI TROUGH EARTHQUAKE
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- ISHIBASHI Hiroki
- 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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- KOJIMA Takayuki
- 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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- 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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- 強震動と津波ハザードの連続性を考慮した橋梁・盛土構造物の信頼性評価法の提案と南海トラフ地震を想定したケーススタディ
Abstract
<p> In this paper, a framework for estimating the reliability of bridges and embankments under both seismic and tsunami hazards is proposed. Effect of ground motion induced-damage to structures on the deterioration of tsunami capacity is taken into consideration. Uncertainties associated with the hazard and fragility evaluations are considered quantitatively. In an illustrative example, given the occurrence of the anticipated Nankai Trough earthquake, reliabilities of girder bridges, rigid frames and embankments among three cities are estimated and compared to identify which structure is more vulnerable and to know the location with the highest risk. Computational results demonstrate that the failure probability of structures under tsunami hazard with ground induced-damage is lower than that without ground-induced damage. The proposed method can provide a reliability-based retrofitting privatization for structures under multiple hazards.</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)) 76 (1), 41-60, 2020
Japan Society of Civil Engineers
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Details 詳細情報について
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- CRID
- 1390846609794449920
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- NII Article ID
- 130007787677
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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
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed