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Optimization method for seismic response reduction utilizing flexibility of structures

Research Project

Project/Area Number 26630257
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Building structures/Materials
Research InstitutionKyoto University (2015)
Hiroshima University (2014)

Principal Investigator

Makoto Ohsaki  京都大学, 工学(系)研究科(研究院), 教授 (40176855)

Co-Investigator(Kenkyū-buntansha) Tsuda Seita  岡山県立大学, デザイン学部, 准教授 (80584325)
Project Period (FY) 2014-04-01 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2015: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2014: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywords柔なメカニズム / 地震応答 / 最適化 / 空間構造
Outline of Final Research Achievements

An optimization method has been presented for designing a flexible support for preventing damage at the connection between long-span roof and its support sructure. A syncronized vibration of roof and support also prevents damage of nonstructural components such as ceiling. It has been shown that diagonal displacement of connection resuces seismic responses of arch in normal direction. Similar effect has also been confirmed for a long-span latticed shell. Furthermore, a support structure with upward displacement due to horizontal loads has been optimized considering geometrical ninlinearity to realize a base isolation utilizing geometrila nonlinearity. The effectoveness of this support has been confirmed by a small-scale model.

Report

(3 results)
  • 2015 Annual Research Report   Final Research Report ( PDF )
  • 2014 Research-status Report
  • Research Products

    (7 results)

All 2016 2015 2014

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Acknowledgement Compliant: 1 results) Presentation (6 results) (of which Int'l Joint Research: 3 results)

  • [Journal Article] Topology optimization of supporting structure for seismic response reduction of an arch2016

    • Author(s)
      Y. Miyazu, M. Ohsaki and S. Tsuda
    • Journal Title

      Science China Technological Sciences

      Volume: Published Online Issue: 6 Pages: 852-861

    • DOI

      10.1007/s11431-016-6028-z

    • NAID

      120005860033

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] Topology optimization of supporting structures for seismic response reduction of spatial structures2016

    • Author(s)
      Y. Miyazu, M. Ohsaki and S. Tsuda
    • Organizer
      Annual Symposium of Int. Assoc. Shell and Spatial Structures (IASS 2016)
    • Place of Presentation
      Tokyo
    • Year and Date
      2016-09-26
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Optimization of Flexible Supports for Seismic Response Reduction of Arches and Frames2016

    • Author(s)
      M. Ohsaki, Y. Miyazu and S. Tsuda
    • Organizer
      11th World Congress of Computational Mechanics (WCCM12)
    • Place of Presentation
      Seoul, Korea
    • Year and Date
      2016-07-24
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Optimization of flexible supports for seismic response reduction2015

    • Author(s)
      M. Ohsaki, O. Iwatsuki, Y. Miyazu and S. Tsuda
    • Organizer
      World Congress of Structural and Multidisciplinary
    • Place of Presentation
      Sydney, Australia
    • Year and Date
      2015-06-07
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 空間構造物の地震応答低減のための柔な支持構造の最適化2015

    • Author(s)
      岩月 脩,大崎 純, 津田勢太,宮津裕次
    • Organizer
      日本建築学会中国支部研究報告会
    • Place of Presentation
      米子工業高等専門学校
    • Year and Date
      2015-03-07 – 2015-03-08
    • Related Report
      2014 Research-status Report
  • [Presentation] 柔軟な構造の設計のための最適化手法2014

    • Author(s)
      大崎 純
    • Organizer
      第11回最適化シンポジウム
    • Place of Presentation
      金沢市,ITビジネスプラザ武蔵
    • Year and Date
      2014-12-12 – 2014-12-13
    • Related Report
      2014 Research-status Report
  • [Presentation] 地震応答低減のための柔なロッキング構造のトポロジー最適化2014

    • Author(s)
      岩月 脩, 大崎 純, 江口範高, 渡邊秀和
    • Organizer
      第63会理論応用力学講演会
    • Place of Presentation
      東京工業大学
    • Year and Date
      2014-09-26 – 2014-09-28
    • Related Report
      2014 Research-status Report

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Published: 2014-04-04   Modified: 2017-05-10  

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