| 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
Sasaki, Eiichi
Yamada, Hitoshi
Katsuchi, Hiroshi
Takahashi, Kenta
|
| 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 |
SMS08-115.pdf (1.0 MB)
