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1989 Fiscal Year Final Research Report Summary

Development of Fatigue Check Program of Highway Bridges

Research Project

Project/Area Number 63850102
Research Category

Grant-in-Aid for Developmental Scientific Research

Allocation TypeSingle-year Grants
Research Field 土木構造
Research InstitutionFaculty of Engineering, Nagoya University

Principal Investigator

YAMADA Kentaro  Nagoya University, Dept. of Civil Engineering, Professor, 工学部, 教授 (50109310)

Co-Investigator(Kenkyū-buntansha) TERADA Hiromasa  Yokogawa Bridge Co., Research Center, Director, 研究所, 所長
KATO Masafumi  Nagoya University, Dept. of Civil Engineering, Assistant Professor, 工学部, 講師 (50115549)
SHIMADA Shizuo  Nagoya University, Dept. of Civil Engineering, Professor, 工学部, 教授 (90023035)
Project Period (FY) 1988 – 1989
Keywordsfatigue / bridge / steel bridge / welded joint / fracture mechanics / service stress / stress measurement / fatigue crack
Research Abstract

Highway bridge are subjected to heavy truck traffics, which causes some fatigue problem to the secondary member of the bridges. Both the member and the weight of the trucks increased , especially during and after the rapid economic growth in Japan in 1960's and 1970's. The highway bridges were traditional not designed for fatigue because the truck loading caused relatively small stress range to the members, compared with the railroad bridges. However, the fatigue cracking were observed recently in many highway bridges, and assessment for fatigue seems necessary.
Service stress measurement were carried out on several highway bridges by histogram recorder, and fatigue damages were computed using the Miner's cumulative damage rule. The result revealed that the service stress ranges in main members of the highway bridges were relatively small and a very little chances seemed to exist. However, the service stress ranges in several details which experienced fatigue crackings showed rather high stress ranges, and hence short remaining fatigue lives.

  • Research Products

    (10 results)

All Other

All Publications (10 results)

  • [Publications] K.Yamada,H.Shigetomi,S.Utsunomiya: "Fatigue Test Data Base of Steel Structural Elements and Allowable S-N Diagram" proc.of Pacific Structural Comference,1989. (1989)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] K.Yamada,C.Miki: "Recent Reserch on Fatigue of Bridge Structural in Japan" Journal of Constructional Steel Reserch. 13. 211-222 (1989)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 山田健太郎、篠田泰蔵、馬智亮: "実橋の疲労損傷程度の予測方法" 第18回日本道路会議論文集. (1989)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] K.Yamada,S.Nagatu: "Evaluation of Scatter in Fatigue Life of Welded Ditails using Fracture Mechanics" Proc.of JSCE. (1989)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] K.Yamada: "Field Measurement of Service Stress and Fatigue Life Evaluation of Bridge" Proc.of IABSE Colloguium,Lausanne. (1990)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] K. Yamada, H. Shigetomi, S. Utsunomiya: "Fatigue Test Data Base of Steel Structural Element and Allowable S-N Diagram" Proc. of Pacific Structural Conference, 1989.

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] K. Yamada, C. Miki: "Recent Research on Fatigue Damage of Existing Bridges" Journal of Construction Steel Research, Vol.13, 1989, pp.211-222.

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] K. Yamada, T. Shinoda and Ma Zhiliang: "Prediction of Rate of Fatigue Damage of Existing Bridges" Proc. of Eighteenth Japan Road Conference, 1989.

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] K. Yamada, S. Nagatsu: "Evaluation of Scatter in Fatigue Life of Welded Details using Fracture Mechanics" Proc. of JSCE, No.404, 1989, pp.35-43.

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] K. Yamada: "Field Measurement of Service Stress and Fatigue Life Evaluation of Bridge" Proc. of IABSE Colloquium, Lausanne, 1990.

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1993-03-26  

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