Estimation on collapse mechanism of Aso-bridge during the 2016 Kumamoto earthquakes using ASI-Gauss code
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- Asai Mitsuteru
- 九州大学 工学研究院社会基盤部門
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- Hara Kohei
- 九州大学大学院 工学府建設システム工学専攻
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- Isobe Daigoro
- 筑波大学 システム情報系構造エネルギー工学域
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- Tanaka Seizo
- 広島工業大学
Bibliographic Information
- Other Title
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- ASI-Gauss 法による骨組み崩壊解析に基づく阿蘇大橋崩壊メカニズムの推定
Abstract
<p>Many bridges and infrastrucutures were damaged by the seismic waves in the 2016 Kumamoto Earthquakes, and in this research, we focused on the Aso-bridge which collapsed immediately after the main shock. A huge landslide happened after the earthquakes and Aso-bridge, which was constructed in the same location of the landslide, totally collapsed. There are a couple of reports that four main factors might have contributed to this collapse; (1) seismic wave, (2) ground deformation, (3) landslide material load increase on the bridge, (4) basement ground collapse. In this paper, a numerical analysis of the Aso-Bridge collapse was conducted using the ASI-Gauss code, which is one of the finite element method utilizing beam elements. Then, we have discussed the main factor of the Aso-bridge collapse.</p>
Journal
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- Journal of Structural Engineering, A
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Journal of Structural Engineering, A 66A (0), 59-69, 2020
Japan Society of Civil Engineers
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Details
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- CRID
- 1390002184893795456
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- NII Article ID
- 130007830323
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- ISSN
- 1881820X
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- Text Lang
- ja
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- Data Source
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- JaLC
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed