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Research on Folding of Spatial Structures

Research Project

Project/Area Number 06805048
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field Building structures/materials
Research InstitutionTHE UNIVERSITY OF TOKYO

Principal Investigator

KAWAGUCHI Ken-ichi  Institute of Industrial Science, University of Tokyo, Associate Professor, 生産技術研究所, 助教授 (40234041)

Co-Investigator(Kenkyū-buntansha) HANGAI Yasuhiko  Institute of Industrial Science, University of Tokyo, Professor, 生産技術研究所, 教授 (90013193)
Project Period (FY) 1994 – 1995
Project Status Completed (Fiscal Year 1995)
Budget Amount *help
¥1,900,000 (Direct Cost: ¥1,900,000)
Fiscal Year 1995: ¥1,000,000 (Direct Cost: ¥1,000,000)
Fiscal Year 1994: ¥900,000 (Direct Cost: ¥900,000)
KeywordsSpatial structures / Folding analysis / Deployable structures / Demolishing / Kinematically indeterminate structures / Space frame structures / 展開構造物 / 一般逆行列 / 空間構造物
Research Abstract

Folding of general frame structures was investigated paying special attention to so-called spatial structures, which is general term for the roof structures for large enclosures.Following five points can be pointed out as the conclusion of the research :
1.As the results of the survey work, it can be said that very few research has been done as research for the folding of general frame structures.
2.Introduction of the geometrical measurers and the minimum displacement approach enable us to develop a stable numerical analytical procedure.
3.Numerical examples indicated that folding of structures is one of global optimization problem. It was found that calculated folding path and developing path are usually different from each other.
4.Existence of bifurcation problem on the folding path was discussed.
5.Quasi-static experiment, which was carried out in 1995, using water tank filled with glycerin showed the validity of the our analytical scheme.

Report

(3 results)
  • 1995 Annual Research Report   Final Research Report Summary
  • 1994 Annual Research Report
  • Research Products

    (17 results)

All Other

All Publications (17 results)

  • [Publications] K. Kawaguchi, K. Nabana & Y. Hangai: "Bifurcation Problems in Folding Analysis of Spatial Structures" Extended Abstracts of The 3rd World Congress on Computational Mechanics. II. 1267-1268 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 川口健一,那花謙二,半谷裕彦: "骨組み構造物の畳み込み解析" 生産研究(東京大学生産技術研究所・所報). 544. 46-49 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 川口健一: "骨組構造の畳み込み解析" 構造形態の解析と創生(日本建築学会応用力学運営委員会小委員会報告). 187-202 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 那花謙二,川口健一,西川孝夫,半谷裕彦: "多角形の畳み込みに関する研究 その4:分岐点における経路選択法" 日本建築学会大会学術講演梗概集. B. 665-666 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] K.Kawaguchi, K.Nabana & Y.Hangai: "Bifurcation Problems in Folding Analysis of Spatial Structures" Extended Abstracts of The 3rd World Congress on Computational Mechanics. Vol.II. 1267-1268 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Ken-cihi Kawaguchi: "Folding Analysis for Space frames" SEISAN-KENKYU (Monthly Journal of Institute of Industrial Science, University of Tokyo ). Vol.47, No.1. 46-49 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Ken-ichi Kawaguchi: "Folding analysis of frame structures" Shape analysis and shape generation (Reports of the working group in the Applied Mechnics Committee in AIJ). 187-202 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] K.Nabana, K.Kawaguchi, T.Nishikawa and Y.Hangai: "Analytica Study for Folding of Polygons (Part 4 : Folding Analysis in the Bifurcation)" Summaries of Technical Papers of Annual Meeting, AIJ.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Vol.B. 665-666 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] K.Kawaguchi,K.Nabana & Y.Hangai: "Bifurcation Problems in Folding Analysis of Spatial Structures" Extended Abstracts of The 3rd World Congress on Computational Mechanics. II. 1267-1268 (1994)

    • Related Report
      1995 Annual Research Report
  • [Publications] 川口健一,那花謙二,半谷裕彦: "骨組み構造物の畳み込み解析" 生産研究(東京大学生産技術研究所・所報). 544. 46-49 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 川口健一: "骨組構造の畳み込み解析" 構造形態の解析と創生(日本建築学会応用力学運営委員会小委員会報告). 187-202 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 那花謙二,川口健一,西川孝夫,半谷裕彦: "多角形の畳み込みに関する研究 その4:分岐点における経路選択法" 日本建築学会大会学術講演梗概集. B. 665-666 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] Ken-ichi Kawaguchi: "Bifurcation Problems in Folding Analysis of Spatial Structures" Extended Abstracts of the Third Congresson Computational Mechanics. Vol.2. 1267-1268 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] 川口健一: "構造物の畳み込み解析" 生産研究. 47-1. 46-49 (1995)

    • Related Report
      1994 Annual Research Report
  • [Publications] Ken-ichi Kawaguchi: "Shape and Stress Control Analysis of Prestressed Truss Structures." Proc.of Fifth Int.Conference on Adaptive Structures. (4月発行予定). 10- (1995)

    • Related Report
      1994 Annual Research Report
  • [Publications] 川口健一: "アクチュータやターンバックルを有するトラス構造の逆解析" 日本建築学会学術講演梗概集. 1991-1992 (1994)

    • Related Report
      1994 Annual Research Report

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Published: 1994-04-01   Modified: 2016-04-21  

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