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1987 Fiscal Year Final Research Report Summary

Functional Design of Concrete Structures

Research Project

Project/Area Number 61302058
Research Category

Grant-in-Aid for Co-operative Research (A)

Allocation TypeSingle-year Grants
Research Field コンクリート工学・土木材料・施工
Research InstitutionGifu University

Principal Investigator

KOYANAGI Wataru  Faculty of Engineering, Gifu University, Professor, 工学部, 教授 (30025928)

Co-Investigator(Kenkyū-buntansha) ROKUGO Keitetsu  Faculty of Engineering, Gifu University, Associate Prof., 工学部, 助教授 (40127155)
KOBAYASHI Kazuo  Faculty of Enigneering, Kyoto University, Associate Prof., 工学部, 助教授 (10021586)
HIRASAWA Yukio  Faculty of Enigineering, Chubu University, Professor, 工学部, 教授 (50065281)
KAWAMURA Mitsunori  Faculty of Engineering, Kanazawa University, Professor, 工学部, 教授 (20019730)
FUJII Manabu  Faculty of Engineering, Kyoto University, Professor, 工学部, 教授 (30031074)
Project Period (FY) 1986 – 1987
KeywordsConcrete structure / Functional design / Toughness / Abrasion / Impact / Fatigue / Corrosion of reinforcement / アルカリ骨材反応
Research Abstract

In addition to the usual strength design of concrete structures, functional design is strongly needed recently, where various functions of concrete other than strength function are quantitatively evaluated and are taken into account in the structural design. The object of this study is to develop the functional design, especially on the mechanical functions, of concrete structures. Principal conclusions derived are as follows;
1. On the toughness design of reinforced and prestressed concrete beams, toughnss index should be appropriate, which is defined by the function of cross sectional and material properties of a beam and the normal force acting on the beam. Concrete beams with high cracking resistance and high strength and toughness were also developed.
2. As to the abrasion resistant design of concrete, revolving disk abrasion tes and impact abrasion test by dropping steel balls were made on the concrete of various strength and various toughness, i.e. various amount of steel fibers. … More Effectiveness of strength and fiber content on abrasion resistance was found to be largely dependent on the type of abrasion test and on whether the surface of concrete was dry or wet.
3. On the impact resitant design of concrete structures, lavered finite element technique is found to be very useful for analizing the impact failure behavior of reinforced concrete slab structures. Impact failure behavior of concrete wall handrails were also investigated experimentally.
4. On the corrosion inhibiting design of cocrete structures, chloride corrosion of reinforcement was mainly studied. The efficiency of various surface treatment agents of concrete was examined from stand points of the diffusibility of oxygen, water, chloride ion etc. within concrete. Reduction of alkali aggregate reactions by blastfurnace slag and flyash was also examined.
5. On the fatigue resistant design of concrete structures, the degree of damage caused by cyclic loading was obtained by measuring the changes in vibration characteristics of concrete members. Less

  • Research Products

    (11 results)

All Other

All Publications (11 results)

  • [Publications] 小柳 洽: 材料. 36. 744-750 (1987)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 小柳 洽: 土木学会論文集. 384. 83-92 (1987)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 小柳 洽: セメント技術年報. 41. 237-240 (1987)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 藤井 学: 材料. 36. 751-757 (1987)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 藤井 学: コンクリート工学年次論文報告集. 9-2. 609-614 (1987)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 小林 和夫: 土木学会論文集. 384. 151-160 (1987)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Wataru KOYANAGI: "Plastic behavior of prestressed concrete beams and its toughness design" Jour. of the Society of Materials Science, Japan. 36. 744-750 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Wataru KOYANAGI: "The stress-strain relationship of reinforcing bars in concrete and mechanical behavior of RC beams in flexure" Proc. of Japan Society of Civil Engineers. no.360. 83-92 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Wataru KOYANAGI: "The Impact Wear of Concrete" Semento Giiyutsu Nempo. 41. 237-240 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Manabu FUJII: "Behavvior of high strength concrete slabs under impulsive load" Jour. of the Society of Materials Science, Japan. 36. 751-757 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Manabu FUJII: "Analysis of non-linear behavior of reinforced concrete slabs under impulsive load" Proc. of the Japan Concrete Institute. 9-2. 609-614 (1987)

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

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Published: 1989-03-30  

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