Clarification of damage detection limit of steel bridge by vibration and development of damage detection method using piezoelectrics

2012 Fiscal Year Final Research Report

• Project/Area Number: 23760421
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Structural engineering/Earthquake engineering/Maintenance management engineering
• Research Institution: Nagaoka University of Technology
• Principal Investigator: MIYASHITA Takeshi 長岡技術科学大学, 工学部, 准教授 (20432099)
• Project Period (FY): 2011 – 2012
• Keywords: 橋梁 / 維持管理 / 振動 / 損傷

Research Abstract

Toward effective maintenance of bridge, a lot damage were inflicted on a demolished bridge, step by step, and the ambient vibration was measured in each case to investigate the correlation between damage and changes in dynamic characteristics. Moreover, monitoring method was studied using piezoelectrics for developing bridge damage detection method.

Research Products

• [Journal Article] 長井正嗣:振動を利用した健全性診断に 向けた実橋梁の損傷と動特性変化 (2012)
  • Author(s): 宮下剛,玉田和也,劉翠平,岩崎英徳
  • Journal Title: 土木学会論文集A1(構造・地震工学) Volume: Vol.68,No.2 Pages: 367-383
  • Peer Reviewed
• [Presentation] RELATIONSHIP BETWEEN DAMAGE AND CHANGE IN DYNAMIC CHARACTERISTICS OF AN EXISTING BRIDGE (2013)
  • Author(s): Takeshi Miyashita, Kazuya Tamada, Hidenori Iwasaki and Masatsugu Nagai
  • Organizer: 5th International Operational Modal Analysis Conference
  • Place of Presentation: University of Minho
  • Year and Date: 20130500
• [Presentation] TENSILE FORCE MEASUREMENT OF CABLES IN A CABLE-STAYED BRIDGE USING LASER DOPPLER VIBROMETER (2013)
  • Author(s): Kazuya Tamada, Takeshi Miyashita and Morihito Hagura
  • Organizer: 5th International Operational Modal Analysis Conference
  • Place of Presentation: University of Minho
  • Year and Date: 20130500
• [Presentation] PC鋼材破断検出に向けた音源位置同定の基礎検討 (2012)
  • Author(s): 上原繁輝,宮下剛,田中泰司 丸山久一
  • Organizer: 第30回土木学会関東支部新潟会研究調査発表会
  • Place of Presentation: 朱鷺メッセ
  • Year and Date: 20121000
• [Presentation] 長井正嗣:既設PC斜張橋の維持管理に 向けたケーブルの振動計測 (2012)
  • Author(s): 古川侑大,上原繁輝,宮下剛,玉田和也
  • Organizer: 第30回土木学会関東支部新潟会研究調査発表会
  • Place of Presentation: 朱鷺メッセ
  • Year and Date: 20121000
• [Presentation] PC鋼材破断検出に向けた音響モニタリングシステムの開発 (2012)
  • Author(s): 稲葉将吾,宮下剛,田中泰司 丸山久一,登石清隆
  • Organizer: 第67回土木学会年次学術講演会
  • Place of Presentation: 名古屋大学
  • Year and Date: 20120900
• [Presentation] 長井正嗣:段階的に損傷を与えた鋼鈑桁橋の振動計測と有限要素解析 (2011)
  • Author(s): 玉田和也,宮下剛,劉翠平,岩崎英徳
  • Organizer: 橋梁振動コロキウム2011論文集
  • Year and Date: 20110900
• [Presentation] 健全性診断に向けた実橋梁の損傷と動特性変化の相関把握 (2011)
  • Author(s): 安田聖晃,玉田和也,宮下剛,長井正嗣, 岩崎英徳
  • Organizer: 第66回土木学会年次学術講演会
  • Place of Presentation: 愛媛大学
  • Year and Date: 20110900
• [Remarks]
  • URL: http://struct102.nagaokaut.ac.jp/