2022 Fiscal Year Final Research Report
Development of a comprehensive risk assessment system for the maintenance and management of social infrastructure structures.
| Project/Area Number |
20K21054
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| Research Category |
Grant-in-Aid for Challenging Research (Exploratory)
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| Allocation Type | Multi-year Fund |
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| Review Section |
Medium-sized Section 25:Social systems engineering, safety engineering, disaster prevention engineering, and related fields
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| Research Institution | Nagaoka University of Technology |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
下村 匠 長岡技術科学大学, 工学研究科, 教授 (40242002)
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| Project Period (FY) |
2020-07-30 – 2023-03-31
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| Keywords | 維持管理 / 自然災害 / 劣化予測 / 塩害 / 高潮 |
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| Outline of Final Research Achievements |
In this study, utilizes prediction techniques for external forces acting on social infrastructure structures in the natural environment and during large-scale disasters, the system is capable of evaluating both the deterioration of structures and the degree of danger in the event of a disaster. As a result, a three-dimensional simulation model that can predict the deterioration of concrete structures in coastal areas and the natural environmental effects (wind conditions, waves, and salt introduced by air) that contribute to the deterioration was developed. Furthermore, it was shown that, as a forecasting method for large-scale disasters, a coupled atmosphere-ocean wave model and wave analysis model can be used to predict and analyze waves and sea level rise caused by storm surge events and the resulting wave forces acting on structures.
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| Free Research Field |
コンクリート工学
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| Academic Significance and Societal Importance of the Research Achievements |
本研究の成果は、これまで国内外で盛んに研究が進められてきたコンクリート構造物内部の劣化予測解析と災害時のコンクリート構造物の破壊予測解析の境界条件を高精度化するものである。これまで注目されていなかった構造物の外部境界条件を高度化することで、災害を含めた外部環境作用を高精度で予測できる技術を構築するものである。将来的には、コンクリート構造物の外部から内部までを統合して構造物の危険度を判定できる技術の構築につながり、社会基盤構造物の設計・維持管理の効率性と安全性を向上させる点に社会的意義がある。
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