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Earthquake safety of scissors-type of emergency bridge for rapid construction on disaster area

Research Project

Project/Area Number 16H06840
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeSingle-year Grants
Research Field Structural engineering/Earthquake engineering/Maintenance management engineering
Research InstitutionShinshu University

Principal Investigator

CHIKAHIRO Yuki  信州大学, 工学部, 助教(特定雇用) (10778905)

Project Period (FY) 2016-08-26 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords緊急橋 / シザーズ橋 / 動的挙動 / 耐震性能 / 災害復旧 / 展開構造 / シザーズ構造 / 耐震安全性
Outline of Final Research Achievements

The purpose of this research is to evaluate the dynamic characteristics and the earthquake safety at the disaster site of the scissors-type emergency bridge aiming for rapid construction within 72 hours. In the eigenvalue analysis, the vibration mode of the scissors bridge showed a tendency similar to that of a beam structure, although the expansion direction was remarkable. Under the earthquake, high bending stress occurred near the supporting point of the pivot. Within the parametric analysis, the maximum bending stress was approximately three times as large as the static analysis. In other words, when considering the safety factor of the main member, it is required over three times under the earthquake.

Report

(3 results)
  • 2017 Annual Research Report   Final Research Report ( PDF )
  • 2016 Annual Research Report
  • Research Products

    (5 results)

All 2018 2017 2016

All Presentation (5 results) (of which Int'l Joint Research: 4 results,  Invited: 1 results)

  • [Presentation] Dynamic analysis of a scissors structure2018

    • Author(s)
      Y. Hama, I. Ario, K. Adachi, Y. Chikahiro
    • Organizer
      Gemeinsame Tagung der Sektion Kondensierte Materie der DPG und der Condensed Matter Division der EPS
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] シザーズ機構を応用した緊急橋の基礎振動特性に関する検討2018

    • Author(s)
      南 尚吾,近広 雄希,善財 聖也
    • Organizer
      H29年度土木学会中部支部研究発表会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Fundamental study on dynamic property of scissoring bridge for disaster relief2017

    • Author(s)
      Y. Chikahiro, I. Ario, K. Adachi, S. Shimizu, S. Zenzai, P. Pawlowski, C. Graczyokowski, J. Holnicki Szulc
    • Organizer
      9th European Nonlinear Dynamics Conference
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Dynamic property of deployable emergency bridge using scissors mechanism2017

    • Author(s)
      Y. Chikahiro, I. Ario, K. Adachi, S. Shimizu, P. Pawlowski, C. Graczykowski, J. Holnicki-Szulc
    • Organizer
      FootBridge 2017 Berlin
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Optimal Reinforcement of Scissor Type of Bridge with Additional Strut Members2016

    • Author(s)
      Y. Chikahiro, I. Ario, J. Holnicki Szulc, P. Pawlowski, C. Graczyokowski
    • Organizer
      International Conf. of Civil & Environmental Engineering(ICCEE2016)
    • Place of Presentation
      Hiroshima, Japan
    • Year and Date
      2016-10-17
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited

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Published: 2016-09-02   Modified: 2019-03-29  

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