このアイテムのアクセス数: 324
このアイテムのファイル:
ファイル | 記述 | サイズ | フォーマット | |
---|---|---|---|---|
sss.2015.15.2.395.pdf | 667.51 kB | Adobe PDF | 見る/開く |
タイトル: | A Bayesian approach for vibration-based long-term bridge monitoring to consider environmental and operational changes |
著者: | Kim, Chul-Woo ![]() ![]() ![]() Morita, Tomoaki Oshima, Yoshinobu Sugiura, Kunitomo ![]() ![]() ![]() |
著者名の別形: | 金, 哲佑 森田, 知明 大島, 義信 杉浦, 邦征 |
キーワード: | long-term bridge monitoring Bayesian regression temperature vehicle weight vibration |
発行日: | 25-Feb-2015 |
出版者: | Techno-Press |
誌名: | Smart Structures and Systems |
巻: | 15 |
号: | 2 |
開始ページ: | 395 |
終了ページ: | 408 |
抄録: | This study aims to propose a Bayesian approach to consider changes in temperature and vehicle weight as environmental and operational factors for vibration-based long-term bridge health monitoring. The Bayesian approach consists of three steps: step 1 is to identify damage-sensitive features from coefficients of the auto-regressive model utilizing bridge accelerations; step 2 is to perform a regression analysis of the damage-sensitive features to consider environmental and operational changes by means of the Bayesian regression; and step 3 is to make a decision on the bridge health condition based on residuals, differences between the observed and predicted damage-sensitive features, utilizing 95% confidence interval and the Bayesian hypothesis testing. Feasibility of the proposed approach is examined utilizing monitoring data on an in-service bridge recorded over a one-year period. Observations through the study demonstrated that the Bayesian regression considering environmental and operational changes led to more accurate results than that without considering environmental and operational changes. The Bayesian hypothesis testing utilizing data from the healthy bridge, the damage probability of the bridge was judged as no damage. |
著作権等: | 発行元の許可を得て掲載しています。This is not the published version. Please cite only the published version. この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。 |
URI: | http://hdl.handle.net/2433/236010 |
DOI(出版社版): | 10.12989/sss.2015.15.2.395 |
出現コレクション: | 学術雑誌掲載論文等 |

このリポジトリに保管されているアイテムはすべて著作権により保護されています。