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フルテキストURLA040067000201.pdf ( 3.1MB ) 公開日 2017-04-13
タイトルバスモニタリングシステムによる中小スパン橋の長期モニタリングと損傷検知感度の向上
タイトルヨミバス モニタリング システム ニヨル チュウショウ スパンキョウ ノ チョウキ モニタリング ト ソンショウ ケンチ カンド ノ コウジョウ
タイトル別表記Long term application of vehicle-based health monitoring system to short and medium span bridges and improvement of damage detection sensitivity
作成者宮本, 文穂
矢部, 明人
Jari, Puttonen
作成者ヨミミヤモト, アヤホ
ヤベ, アキト
作成者別表記Miyamoto, Ayaho
Yabe, Akito
Jari, Puttonen
内容記述(抄録等)Largest portion of the bridge stock in almost any country and bridge owning organisation consists on ordinary bridges that has short or medium spans and are now deteriorating due to aging, etc. Therefore, it is becoming an important social concern to develop and put to practical use simple and efficient health monitoring systems for existing short and medium span (10-30m) bridges. In this paper, one practical solution to the problem for condition assessment of short and medium span bridges was discussed. A vehicle-based measurements with a public bus as part of a public transit system (called "Bus
monitoring system") has been developed to capable of detecting damage that may affect the structural safety of a bridge from long term vibration measurement data collected while the vehicle (bus) crossed the target bridges. This paper systematically describes how the system has been developed. The bus monitoring system aims to detect the transition from the damage acceleration period, in which the structural safety of an aged bridge declines sharply, to the deterioration period by continually monitoring the bridge of interest. To evaluate the practicality of the newly developed bus monitoring system, it has been fieldtested over a period of about four years by using an in-service fixed-route bus operating on a bus route in the city of Ube, Yamaguchi Prefecture, Japan. The verification results thus obtained are also descrived in this paper. This study also evaluates the sensitivity of “characteristic deflection”, which is a bridge (health) condition indicator used by the bus monitoring system, in damage detection. Sensitivity of “characteristic deflection” is verified by introducing artificial damage into a bridge that has ended its service life and is awaiting removal.
本文言語jpn
著者キーワードshort & medium span bridge
long term monitoring
public bus
health monitoring system
condition assessment
damage detection
characteristic deflection
sensitivity
資料タイプtext
ファイル形式application/pdf
出版者山口大学工学部
出版者ヨミヤマグチ ダイガク コウガクブ
NII資料タイプ紀要論文
査読の有無査読なし
ISSN1345-5583
NCIDAN00244228
学内刊行物(紀要等)山口大学工学部研究報告
掲載誌名山口大学工学部研究報告
掲載誌名別表記Memoirs of the faculty of engineering, Yamaguchi university
67
2
開始ページ41
終了ページ73
発行日2017-03
関連情報URL(IsPartOf)http://memoirs.lib-e.yamaguchi-u.ac.jp/
著者版/出版社版出版社版
リポジトリIDA040067000201
地域区分山口大学
URIhttp://www.lib.yamaguchi-u.ac.jp/yunoca/handle/A040067000201