bridge monitoring system development integrating hybrid synchronized wireless sensor networks and non-contact sensors

• Project/Area Number: 23686066
• Research Category: Grant-in-Aid for Young Scientists (A)
• Allocation Type: Single-year Grants
• Research Field: Structural engineering/Earthquake engineering/Maintenance management engineering
• Research Institution: The University of Tokyo
• Principal Investigator: NAGAYAMA TOMONORI 東京大学, 工学(系)研究科(研究院), 講師 (80451798)
• Project Period (FY): 2011-04-01 – 2014-03-31
• Project Status: Completed (Fiscal Year 2013)
• Budget Amount: ¥27,430,000 (Direct Cost: ¥21,100,000、Indirect Cost: ¥6,330,000); Fiscal Year 2013: ¥6,630,000 (Direct Cost: ¥5,100,000、Indirect Cost: ¥1,530,000); Fiscal Year 2012: ¥7,930,000 (Direct Cost: ¥6,100,000、Indirect Cost: ¥1,830,000); Fiscal Year 2011: ¥12,870,000 (Direct Cost: ¥9,900,000、Indirect Cost: ¥2,970,000)
• Keywords: 維持管理工学 / 無線センサ / 振動モニタリング / 同期計測 / 非接触計測 / FEM / GPS / 局部振動 / 全体振動 / 非接触遠隔計測 / 電動雲台 / レーザードップラー速度計 / 無線センサネットワーク / 性能評価 / 維持管理

Research Abstract

Appropriate evaluation of structural performance reduces the uncertainty in design and maintenance of structures and leads to cost reduction and improved safety. Vibration measurement is expected to clarify the validity of FEM. The modeling of bridges needs to be validated based on the global and local scale behaviors. In this research, a measurement system to capture both the global and local vibration modes are developed using the wireless sensor network and non-contact laser doppler vibrometer. The two sensor systems are synchronized using the GPS signals.

Research Products

• [Journal Article] Efficient multi-hop communication for static wireless sensor networks in the application to civil infrastructure monitoring (2014)
  • Author(s): Zou, Z., Nagayama, T., and Fujino, Y
  • Journal Title: Structural Control and Health Monitoring Volume: 21 Issue: 4 Pages: 603-619
  • DOI: 10.1002/stc.1588
• [Journal Article] 無線センサネットワークを用いた構造モニタリングのためのマルチチャネル利用型並列一括収集機構 (2013)
  • Author(s): 黒岩拓人,鈴木誠,猿渡俊介,長山智則,森川博之
  • Journal Title: 電子情報通信学会論文誌 Volume: vol. J96-B, no. 2
  • NAID: 110009578217
• [Journal Article] Development and application of high sensitivity wireless smart sensors for decentralized stochastic modal identification (2012)
  • Author(s): Jo, H., Sim, S.-H., Nagayama, T., and Spencer, Jr., B. F
  • Journal Title: Journal of Engineering Mechanics Volume: 138(6)
• [Presentation] 局部振動に着目したベルトコンベアトラス構造の部材剛性評価手法の開発 (2013)
  • Author(s): 長山智則,アミンホナルバクシュ,藤野陽三,冨永知徳,久積和正菅野良一
  • Organizer: 第68回土木学会年次学術講演会概要集
  • Place of Presentation: I-052
• [Presentation] 局部振動に着目したベルトコンベアトラス構造の部材剛性評価手法の開発 (2013)
  • Author(s): 長山智則
  • Organizer: 平成２５年度土木学会全国大会
  • Place of Presentation: 千葉習志野市 日本大学 生産工学部津田沼キャンパス
• [Presentation] Dense vibration measurement of an arch bridge before and after its seismic retrofit using wireless smart sensors (2012)
  • Author(s): T.Nagayama, ら
  • Organizer: Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2012
  • Place of Presentation: 米国サンディエゴ
  • Year and Date: 2012-03-15
• [Presentation] Preliminary study of low-cost GPS receivers for time synchronization of wireless sensors (2012)
  • Author(s): R.E.Kim, ら
  • Organizer: Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2012
  • Place of Presentation: 米国サンディエゴ
  • Year and Date: 2012-03-14
• [Presentation] Efficient campaign-type structural health monitoring system using wireless smart sensors (2012)
  • Author(s): J.Li, ら
  • Organizer: Sensors and Smart Structures Technologies for Cvil, Mechanical, and Aerospace Systems 2012
  • Place of Presentation: 米国サンディエゴ
  • Year and Date: 2012-03-14
• [Presentation] Efficient campaign-type structural health monitoring system using wireless smart sensors (2012)
  • Author(s): Li, J., Nagayama, T., Mechitov, K. A., and Spencer, Jr., B. F
  • Organizer: Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2012
  • Place of Presentation: San Diego, USA(of SPIE volume 8345)
• [Presentation] Preliminary study of low-cost GPS receivers for time synchronization of wireless sensors (2012)
  • Author(s): Kim, R. E., Nagayama, T., Jo, H., and Spencer, Jr., B. F
  • Organizer: Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2012
  • Place of Presentation: San Diego, USA(of SPIE volume 8345)
• [Presentation] Dense vibration measurement of an arch bridge before and after its seismic retrofit using wireless smart sensors (2012)
  • Author(s): Nagayama, T. Urushima, A., Fujino, Y., Miyashita, T., Yoshioka, T., Ieiri, M
  • Organizer: Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2012
  • Place of Presentation: San Diego, USA(of SPIE volume 8345)
• [Presentation] Damage identification of belt-conveyor support structure using global and local vibration modes (2012)
  • Author(s): Honarbakhsh, A., Nagayama, T., and Fujino, Y
  • Organizer: Proc. of 5th European Conference on Structural Control
  • Place of Presentation: Genoa, Italy
• [Presentation] Damage identification of belt-conveyor support structure using global and local vibration modes (2012)
  • Author(s): Honarbakhsh, A., Nagayama, T., and Fujino, Y
  • Organizer: 5th European Conference on Structural Control
  • Place of Presentation: イタリア ジェノバ
• [Presentation] 不可視レーザー光を用いた新しいLDVによる斜張橋ケーブルの振動計測-幸魂大橋での計測事例 (2011)
  • Author(s): 宮下剛,吉岡勉,羽倉守人,長山智則,田代大樹
  • Organizer: 第66回土木学会年次学術講演会概要集
  • Place of Presentation: I-324
• [Presentation] 首都高速道路高架橋における走行車両による交通振動計測とその解析
  • Author(s): 蘇迪,三輪陽彦,藤野陽三,長山智則
  • Organizer: 第59回構造工学シンポジウム
• [Presentation] 交通荷重下の鋼桁橋の応答計測と局部応力の評価
  • Author(s): 蘇迪,嶋田優樹,三輪陽彦,藤野陽三,長山智則,水谷司
  • Organizer: 第60回構造工学シンポジウム