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Study on aerodynamic vibrations of a bracing member with a rectangular cross section of a long-spanned truss bridge
https://jaxa.repo.nii.ac.jp/records/3465
https://jaxa.repo.nii.ac.jp/records/3465b03a80ce-7056-4645-aa7f-ca4d25b39930
名前 / ファイル | ライセンス | アクション |
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AA1630046072.pdf (1.6 MB)
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Item type | 会議発表論文 / Conference Paper(1) | |||||
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公開日 | 2017-05-01 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Study on aerodynamic vibrations of a bracing member with a rectangular cross section of a long-spanned truss bridge | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | bracing member | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | rectangular cross section | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | motion-induced vortex excitation | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Karman vortex-induced excitation | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | spring supported test | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | flow visualization | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_5794 | |||||
資源タイプ | conference paper | |||||
著者 |
須田, 健太郎
× 須田, 健太郎× 松田, 一俊× 加藤, 九州男× 玉井, 佑典× Suda, Kentaro× Matsuda, Kazutoshi× Kato, Kusuo× Tamai, Yusuke |
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著者所属 | ||||||
九州工業大学 | ||||||
著者所属 | ||||||
九州工業大学 | ||||||
著者所属 | ||||||
九州工業大学 | ||||||
著者所属 | ||||||
株式会社日立製作所 | ||||||
著者所属(英) | ||||||
en | ||||||
Kyushu Institute of Technology | ||||||
著者所属(英) | ||||||
en | ||||||
Kyushu Institute of Technology | ||||||
著者所属(英) | ||||||
en | ||||||
Kyushu Institute of Technology | ||||||
著者所属(英) | ||||||
en | ||||||
Hitachi, Ltd. | ||||||
出版者 | ||||||
出版者 | 宇宙航空研究開発機構(JAXA) | |||||
出版者(英) | ||||||
出版者 | Japan Aerospace Exploration Agency (JAXA) | |||||
書誌情報 |
宇宙航空研究開発機構特別資料 en : JAXA Special Publication: Proceedings of the First International Symposium on Flutter and its Application 巻 JAXA-SP-16-008E, p. 669-678, 発行日 2017-03-15 |
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会議概要(会議名, 開催地, 会期, 主催者等)(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | First International Symposium on Flutter and its Application (May 15-17, 2016. Mielparque-tokyo), Minato-ku, Tokyo, Japan | |||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | In 2009, Ikitsuki Bridge, a truss bridge in Nagasaki Prefecture with a center span length of 400 m, was discovered to have a crack in the bracing member of the bridge. As a result of the subsequent vibration measurement at the site, the main cause of the crack was identified as Karman vortex-induced excitation. However, vibrations were also observed in the wind speed range of 7-8 m/s, which was lower than the resonance wind speed of Karman vortex-induced excitation. Conventionally, according to the results from a wind tunnel test using a side ratio of B/D=2-8 (B: along-wind length, D: cross-wind length), the motion-induced vortex excitation was confirmed. However, the side ratio of the section of the bracing member is B/D=1.18, and the motion-induced vortex excitation in the case of this side ratio has not yet to be confirmed by the conventional wind tunnel test. Therefore, in this research, a spring-supported test was carried out targeting a rectangular cross section of B/D=1.18. Furthermore, flow visualization was performed and the results of the spring-supported test were discussed. The vibrations in the bracing member with a rectangular cross section (B/D=1.18) of Ikitsuki Bridge generated in the wind speed range of lower than Karman vortex-induced excitation among the aerodynamic vibrations caused by wind were suggested to possibly be motion-induced vortex excitation by experimental results of a spring-supported test and the flow visualization. Further investigation should be undertaken. | |||||
内容記述 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 形態: カラー図版あり | |||||
内容記述(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Physical characteristics: Original contains color illustrations | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1349-113X | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA11984031 | |||||
資料番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 資料番号: AA1630046072 | |||||
レポート番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | レポート番号: JAXA-SP-16-008E |