Automated dynamic characteristics estimation of highway bridge under ambient vibration by block companion form realization
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- Jawaid Bashir Ahmad
- Nagasaki University
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- Okabayashi Takatoshi
- Dept. of Civil Eng., Nagasaki University
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- Ali Md. Rajab
- Nagasaki University
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- Okumatsu Toshihiro
- Dept. of Civil Eng., Nagasaki University
抄録
In this research, vibration characteristics are estimated from the ambient vibration of highway bridge by the block companion form realization theory. Two methods are stated herein such as formulation of block companion system matrix; (i) directly from block Hankel matrix, (ii) from ARMA model parameter G through Yule-Walker equation. These methods have applied to a 152m long Langer bridge and its dynamic characteristics were estimated automatically from multipoint measurement of ambient vibration. As the ambient vibration characteristics affect the estimation accuracy, two different cases were taken into consideration and the estimation accuracy was evaluated.
収録刊行物
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- 構造工学論文集 A
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構造工学論文集 A 54A 189-198, 2008
公益社団法人 土木学会
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詳細情報 詳細情報について
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- CRID
- 1390282680259299712
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- NII論文ID
- 130004503576
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- ISSN
- 1881820X
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可