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2001 Fiscal Year Final Research Report Summary

Analyticaland experimental study of methods to intellectualize bridges

Research Project

Project/Area Number 11450178
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field 構造工学・地震工学
Research InstitutionHiroshima Institute of Technology

Principal Investigator

NAKAYAMA Takahiro  Hiroshima Institute of Technology, Faculty of Engineering, Professor, 工学部, 教授 (90087974)

Co-Investigator(Kenkyū-buntansha) OSHIMA Toshiyuki  Kitami Institure of Technology, Faculty of Engineering, Professor, 工学部, 教授 (00003210)
KIYOSHI Yno  Kyusyu Kyoritsu University, Faculty of Engineering, Professor, 工学部, 教授 (60037877)
米倉 亜州夫  広島工業大学, 工学部, 教授 (00034372)
KAWATANI Mitsuo  Kobe University, Faculty of Engineering, Professor, 工学部, 教授 (00029357)
KATO Masafumi  Kyusyu Tokai University, Faculty of Engineering, Professor, 工学部, 教授 (50115549)
NAKAYAMA Takahiro  Hiroshima Institure of Technology, Faculty of Engineering, Professor (90087974)
Project Period (FY) 1999 – 2001
KeywordsIntellingent Bridge / Remote Monitoring / Bridge Integrity / Dynamic Experiment / Seismic Response Analysis / Structural Reliability / Optical Fiber Sensor / Control for Vibration of Bridge
Research Abstract

(1) As a result of dynamic experiments, it was demonstrated that optical fiber sensors were able to be applied to measurement of not only static strain but also dynamic strain, which was need for smart monitoring of bridge integrity, of reinforced-concrete structural members.
(2) In the effect of the CFRP grid reinforcing, it was found that the increase in the load at which flexural and diagonal cracks was even greater (60 to 120%) than that of non-RC beam.
(3) Based upon a blow test by using of two kinds of hammers, the distribution of separated concrete of RC bridges was able to be plotted.
(4) Weighted average method using the database of inspection on bridge was proposed to evaluate the total integrity of a bridge.
(5) In order to identify the damage of steel structures by measuring the change of vibration characteristics, local excitation method of vibration test was applied. As a result, applicability of local excitation method to detect damage of steel structures was shown.
(6) Formulae to estimate the accurate natural frequency of various steel arch highway bridges were proposed by the use of experimental data obtained from measurements on 30 steel arch highway bridges.
(7) It was demonstrated that the influence of the initial condition of vehicle vibration on a girder with very short span length was large, based upon analytical results on traffic-induced vibration of a girder system.
(8) A theoretical analysis of active control was carried out using LQ theory, based on the data of a response of Umeda Entrance Bridge of Hanshin Expressway due to a dump truck.

  • Research Products

    (12 results)

All Other

All Publications (12 results)

  • [Publications] 中山隆弘, 長尾史雄, 後藤哲雄, 前田泰男: "RC模型振動実験への光ファイバセンサの適用"土木学会中国支部第53回研究発表会講演概要集. 55-56 (2001)

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  • [Publications] 山口哲矢, 米倉亜州夫, 長尾史雄, 後藤哲雄, 前田泰男: "モルタル充填鋼管柱の静的圧縮測定への光ファイバセンサ(FBG方式)の適用"土木学会中国支部第53回研究発表会講演概要集. 595-596 (2001)

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      「研究成果報告書概要(和文)」より
  • [Publications] 藤本良雄, 成富 勝, 荒巻真二, 烏野清: "非破壊検査によるコンクリート・鋼板の浮き分布推定精度"土木学会第56回年次学術講演会講演概要集I-A. 500-501 (2001)

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      「研究成果報告書概要(和文)」より
  • [Publications] 大島俊之, 三上修一, 山崎智之, 丹羽郁恵: "橋梁健全度評価に用いる評価方法の検討と影響要因の解析"土木学会論文集. No.675/1-55. 201-217 (2001)

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  • [Publications] 加藤雅史: "モニタリングデータ評価のための鋼アーチ系道路橋固有振動特性推定式"土木学会橋梁振動コロキウム. 49-54 (2001)

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  • [Publications] 川谷充郎, 前中浩司, 井上 毅: "偏心走行を考慮した橋桁交通振動のアクティブ制御解析"土木学会橋梁振動コロキウム. 127-132 (2001)

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      「研究成果報告書概要(和文)」より
  • [Publications] T, Nakayama. H, Nagao. T, Goto. Y, Maeda: "Application of Optical Fiber Sensor to Dynamic Experiments of Reinforced-concrede Members(in Japanese)"Proceedings, the 53rd Annual Meeting, Chugoku Regional Branch, JSCE Yamaguchi Japan. 55-56 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] A, Yonekura. Et al: "Shear Behavior or Rc-beam Strengthend with CFRP Grid"Creative Systems in Structural and Construction Engineering Singh(ed), Balkema. 479-484 (2001)

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      「研究成果報告書概要(欧文)」より
  • [Publications] Y, Fuzimoto. M, Narutomi. S, Aramaki.K, Uno: "Accuracy in Prediction of the Distribution of Separated Concrete and Steel by Non-destructive Test (in Japanese)"Proceedings, the 56th Annual Conference, JSCE, Kumamoto, Japan, I-b095. 190-191 (2001)

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  • [Publications] T, Oshima. S, Mikami. T, Yamazaki. I, Tanba: "Investigation of Total Evaluation Method on Bridge Integrity and Analysis of its Effective Constituents (in Japanese)"Journal of Structural Mechanics and Earthquake Engineering, JSCE. No.675. 201-217 (2001)

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  • [Publications] M, Kato.: "Statistical Analysis of Vibration Characteristics of Steel Arch Highway Bridges (in Japanese)"Proceedings of Colloquium on Bridge Vibration. 49-54 (2001)

    • Description
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  • [Publications] M, Kawatani. K, Maenaka. T, Inoue: "Active Control Analysis of Traffic-induced Vibration of Girder Bridge due to One-side Moving Load (in Japanese)"Proceedings of Colloquium on Bridge Vibration. 127-132 (2001)

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Published: 2003-09-17  

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