Development of monitoring nodes realizing high-density measurements for civil infrastructures

2009 Fiscal Year Final Research Report

• Project/Area Number: 20760302
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Structural engineering/Earthquake engineering/Maintenance management engineering
• Research Institution: Nagaoka University of Technology (2009); Niigata University (2008)
• Principal Investigator: MIYASHITA Takeshi Nagaoka University of Technology, 産学融合トップランナー養成センター, 特任講師 (20432099)
• Project Period (FY): 2008 – 2009
• Keywords: 維持管理 / 橋梁 / モニタリング / レーザー / MEMS / 振動

Research Abstract

In order to create quantitative, objective and effective method maintaining civil infrastructures, this research aims to develop monitoring nodes which realize high-density measurements for them. A monitoring system, which combines a laser Doppler vibrometer with a Total Station for surveying, was applied to existing cable-stayed bridges. As a result, it was confirmed that the system made possible to realize remote and automated monitoring for bridges. Moreover, monitoring nodes using MEMS based technologies were developed. Their application test to vibration measurement of a bridge revealed that the nodes were possible to replace conventional measurement system.

Research Products

• [Journal Article] Application of Laser Doppler Vibrometers to Bridges (2009)
  • Author(s): Takeshi Miyashita
  • Journal Title: Proc. of the 10th International Conference of Structural Safety and Reliability Vol1 Pages: 586
  • Peer Reviewed
• [Journal Article] Vibration-based structural health monitoring for bridges using laser Doppler vibrometers and MEMS-based technologies (2008)
  • Author(s): Takeshi Miyashita, Masatsugu Nagai
  • Journal Title: International Journal of Steel Structures Vol.8 Pages: 325-331
  • Peer Reviewed
• [Presentation] Development of a remote laser scanning system for continuous monitoring of cable-stayed bridges (2010)
  • Author(s): Takeshi Miyashtia, Noriyuki Miyamoto, Syuji Umemoto, Yozo Fujino
  • Organizer: The Fifth International Conference on Bridge Maintenance, Safety and Management
  • Place of Presentation: Philadelphia, Pennsylvania, USA(発表予定)
  • Year and Date: 2010-07-05
• [Presentation] 橋梁振動モニタリングのためのMEMS要素技術を利用したセンサノード開発 (2009)
  • Author(s): 白田幸忠, 佐藤悠樹, 宮下剛, 長井正嗣
  • Organizer: 第64回土木学会年次学術講演会
  • Place of Presentation: 福岡市
  • Year and Date: 2009-09-02
• [Presentation] 最小二乗法を利用したトータルステーションの位置および姿勢同定手法 (2008)
  • Author(s): 宮下剛, 長井正嗣, 久保田慶太, 梅本秀二, 藤野陽三
  • Organizer: 第26回土木学会関東支部新潟会研究調査発表会
  • Place of Presentation: 長岡市
  • Year and Date: 2008-09-25
• [Remarks]
  • URL: http://www.nagaokaut.ac.jp/j/annai/NUT-toprun/miyashitaO.html
• [Patent(Industrial Property Rights)] 非接触式振動・変位計測装置 (2006)
  • Inventor(s): 藤野陽三, 久保田慶太, 宮下剛, 岡本卓慈, 宮本則幸, 梅本秀二, 新宅行英
  • Industrial Property Rights Holder: 藤野陽三, 久保田慶太, 宮下剛, 岡本卓慈, 宮本則幸, 梅本秀二, 新宅行英
  • Patent Publication Number: 特許・特開2007-309899
  • Filing Date: 2006-05-22