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2003 Fiscal Year Final Research Report Summary

Evaluation of ultimate strength of rational and economical bridges for performance based design

Research Project

Project/Area Number 13305031
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field 構造工学・地震工学
Research InstitutionOsaka University

Principal Investigator

NISHIMURA Nobuo  Osaka University, Graduate School Engineering, Professor, 大学院・工学研究科, 教授 (70029156)

Co-Investigator(Kenkyū-buntansha) ONO Kiyoshi  Osaka University, Graduate School Engineering, Associate Professor, 大学院・工学研究科, 助教授 (60324802)
Project Period (FY) 2001 – 2003
KeywordsU-shaped steel bridge girders / bending strength / shear strength / performance based design / vertical stiffener / horizontal stiffener / erection
Research Abstract

Recently, some types of rational and economical bridges are proposed for reducing the construction cost of bridges. U-shaped steel girder is one of proposed rational and economical bridges. The ultimate strength of U-shaped steel bridge girders under construction is inferior to that after construction. But the ultimate strength of U-shaped steel girders without the slab under construction is not obvious and it is not clear whether previous design method for I-shaped steel girders is applicable to the U-shaped steel girders.
In this research, the bending and shear experiments of U-shaped steel girders were carried out in order to grasp the feature of ultimate strength and to get the basic data for confirming adequacy of FEM analyses used in this study. The test specimens were made in consideration of the structural parameters of actual U-shaped steel bridge girders. Besides experiments, FEM analyses were conducted for investigating the feature of ultimate strength of U-shaped steel bridge girders in detail. On the basis of experimental results and analysis results, the evaluation method of bending strength shear strength of U-shaped steel bridge girders were proposed. The validity of the proposed evaluation method was confirmed in comparison between calculated values by the proposed evaluation method and not only experimental results but also analysis results.

  • Research Products

    (12 results)

All 2005 2004 2003 2001

All Journal Article (12 results)

  • [Journal Article] 鋼逆π型箱桁橋架系の曲げ耐荷性能に関する実験的研究2005

    • Author(s)
      玉田和也
    • Journal Title

      土木学会論文集 No.787/I71(印刷中)

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Experimental study for U-shaped steel girders.2005

    • Author(s)
      Kazuya Tamada et al.
    • Journal Title

      Journal of Structural Mechanics and Earthquake Engineering No.787/I-71

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] そりねじり変形を考慮した鋼逆π形合成箱桁橋設計の基本事項2004

    • Author(s)
      加藤久人
    • Journal Title

      鋼構造年次論文報告集 第12巻

      Pages: 91-98

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] 開断面箱桁橋の実績調査2004

    • Author(s)
      玉田和也
    • Journal Title

      橋梁と基礎 Vol.38

      Pages: 41-49

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] 鋼逆π形合成桁橋架設時の合成床版底鋼板による補剛効果2004

    • Author(s)
      日下 敦
    • Journal Title

      第59回年次学術講演会講演概要集

      Pages: 985-986

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Existing report of U-shaped girders.2004

    • Author(s)
      Kazuya Tamada et al.
    • Journal Title

      Bridge and foundation engineering Vol.38

      Pages: 41-49

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Study of Stiffening Effect by Steel Plates in Composite Slabs in Reversed II-shaped Steel Girder under Erection.2004

    • Author(s)
      Atsushi Kusaka et al.
    • Journal Title

      Proceedings of 59th annual conference of the Japan society of civil engineers

      Pages: 985-986

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Experimental Study for Estimating Ultimate Strength of U-shaped Steel Girders2003

    • Author(s)
      Kazuya TAMADA
    • Journal Title

      5th Japanese-German Joint Symposium on Steel and Composite Bridges

      Pages: 71-78

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Experimental Study for Estimating Ultimate Strength of U-shaped Steel Girders in Shear2003

    • Author(s)
      Kazuya TAMADA
    • Journal Title

      IABSE Symposium Shanghai

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Experimental Study for Estimating Ultimate Strength of U-shaped Steel Girders.2003

    • Author(s)
      Kazuya Tamada et al.
    • Journal Title

      5th Japanese-German Joint Symposium on Steel Composite Bridges

      Pages: 71-78

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Experimental Study for Estimating Ultimate Strength of U-shaped Steel Girders in Shear.2003

    • Author(s)
      Kazuya Tamada et al.
    • Journal Title

      IABSE Symposium Shanghai

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Ultimate Strength of U-shape Steel Girder Bridges under Erection.2001

    • Author(s)
      Hisato Kato et al.
    • Journal Title

      Journal of construction steel Vol.9

      Pages: 91-98

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

URL: 

Published: 2006-07-11  

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