高精度振動数推定法による橋梁の損傷予測

• 岡林, 隆敏

• 大岩根, 健吾

• 木村, 啓作

• 奥松, 俊博

書誌事項

タイトル別名

• コウセイド シンドウスウ スイテイホウ ニ ヨル キョウリョウ ノ ソンショウ ヨソク
• Bridge-Damage Detection by the High Accurate Structural Frequency Estimation Method

抄録

The difference of the natural frequency, which is caused by the change of structural condition such as deterioration and damage, is expected extremely small. The authors developed the high accurate structural frequency estimation method, which consists of AR model by ambient vibration. The method is applied to detect structural deterioration caused by damage of the bridge member. In this paper, series of simulation are performed in order to examine the method's efficiency. Consequently, we had a conclusion that the system can estimate the structural frequency with accuracy of 1/100 Hz. Also, we realized to evaluate the structural damage by the ratio of the difference of frequency and a standard deviation of estimated structural frequencies.

長崎大学工学部研究報告 Vol.34(63) p. 71-76, 2004

収録刊行物

• 長崎大学工学部研究報告

  長崎大学工学部研究報告 34 (63), 71-76, 2004-07

  長崎 : 長崎大学工学部

詳細情報

• CRID: 1050850247192412928
• NII論文ID: 110006425191
• NII書誌ID: AN00178418
• ISSN: 02860902
• HANDLE: 10069/15085
• NDL書誌ID: 7118612
• Web Site: https://nagasaki-u.repo.nii.ac.jp/records/21201
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I7118612
• 本文言語コード: ja
• 資料種別: departmental bulletin paper
• データソース種別:
  • IRDB
  • NDL
  • CiNii Articles
  • KAKEN