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  1. SSMSパブリケーション
  2. Vol.04

Katsushika-Harp Bridge : Vibration Monitoring During Earthquakes and Results

http://hdl.handle.net/10173/1678
http://hdl.handle.net/10173/1678
97e8e640-d83a-4b2d-ae60-005c8f7b4f29
名前 / ファイル ライセンス アクション
SMS08-115.pdf SMS08-115.pdf (1.0 MB)
Item type 会議発表論文 / Conference Paper(1)
公開日 2018-02-06
タイトル
タイトル Katsushika-Harp Bridge : Vibration Monitoring During Earthquakes and Results
言語
言語 eng
キーワード
主題Scheme Other
主題 structural health monitoring
キーワード
主題Scheme Other
主題 vibration of long-span bridges
キーワード
主題Scheme Other
主題 frequency response function
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 Chanpheng, Theeraphong

× Chanpheng, Theeraphong

Chanpheng, Theeraphong

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Sasaki, Eiichi

× Sasaki, Eiichi

Sasaki, Eiichi

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Yamada, Hitoshi

× Yamada, Hitoshi

Yamada, Hitoshi

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Katsuchi, Hiroshi

× Katsuchi, Hiroshi

Katsuchi, Hiroshi

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Takahashi, Kenta

× Takahashi, Kenta

Takahashi, Kenta

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抄録
内容記述タイプ Abstract
内容記述 Katsushika-Harp Bridge, the curved cable-stayed bridge in Tokyo, Japan, has been monitored for its vibration during earthquakes since 1987 until present. Initially, the main purpose of the monitoring was to observe its dynamic behaviors for design verification. At that time the significant use of vibration data for health monitoring of the large scale structures, which requires a lot of sensors, was not recognized. For these reasons, only a limited number of accelerometers were installed and only limited amount of data are available. Recently, the health condition of the Katsushika-Harp Bridge has become the major concerns. By using the existing limited data, this paper proposes the simple methods to detect anomalies in the health condition. The health condition is described by the Frequency Response Functions (FRFs). The anomalies are described by: (1) the changes of the degree of non-linearity obtained from the Hilbert transform of the FRFs, and (2) the changes of the natural frequencies extracted from the FRFs. The results from the five recent earthquake records are discussed. According to the results, the proposed methods show possibilities to detect the anomalies in the health condition even from the limited data. Nevertheless, the validity of the proposed methods as well as the damage simulation based on the finite element method need to be further investigated.
書誌情報 Society for Social Management Systems Internet Journal

巻 4, 号 1, 発行日 2008-03
ISSN
収録物識別子タイプ ISSN
収録物識別子 2432-552X
著者版フラグ
出版タイプ VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
出版者
出版者 Society for Social Management Systems
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