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Construction of large-scale seismic response simulation of wide-area expressway network connected by elevated girder bridges

Research Project

Project/Area Number 18H01521
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 22020:Structure engineering and earthquake engineering-related
Research InstitutionNagoya Institute of Technology

Principal Investigator

NONAKA TETSUYA  名古屋工業大学, 工学(系)研究科(研究院), 教授 (20772122)

Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥12,350,000 (Direct Cost: ¥9,500,000、Indirect Cost: ¥2,850,000)
Fiscal Year 2020: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2019: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2018: ¥9,750,000 (Direct Cost: ¥7,500,000、Indirect Cost: ¥2,250,000)
Keywords地震応答シミュレーション / 道路ネットワーク / 高架橋 / DDM / 大規模解析モデル / シェルモデル / 長大橋 / PCクラスタ / 大規模シミュレーション / 地震応答解析 / スーパーコンピュータ / 並列計算アルゴリズム / 大規模モデル / 大規模計算 / シミュレーション
Outline of Final Research Achievements

A high-precision analysis model was constructed that can express the elevated girder bridge until it breaks on a high-performance computer with a supercomputer at the top. In addition, a high-speed calculation method for the analysis model that requires a long calculation time has been developed. Based on this research result, a super-large-scale earthquake response simulation of a wide-area road network composed of elevated girder bridges was completed, and it could be evaluated as a road network when an earthquake exceeding the design seismic motion was applied. In addition to elevated girder bridges, we also attempted to analyze long span bridges that were previously impossible to carry out.

Academic Significance and Societal Importance of the Research Achievements

都市内高速道路は,ほとんどが高架橋であり,地震発生時の緊急輸送路として指定されている場合が多い.十分に耐震設計された高架橋でも,想定を大きく超える地震が発生すると,倒壊することがある.本研究では,高架橋が損傷して倒壊するまでの挙動が表現できる精緻なモデルを構築し,そのモデルがつながった高速道路の地震応答シミュレーションを構築した.今後,発生が危惧されている南海トラフ巨大地震発生時に本シミュレーションを実施すれば,道路ネットワークとして評価が可能となり,地震防災や避難計画立案等に対して有効な情報を提供する.

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • Research Products

    (8 results)

All 2020 2019 2018

All Journal Article (4 results) (of which Peer Reviewed: 4 results) Presentation (4 results)

  • [Journal Article] 鋼I桁橋の上部構造に対する耐震設計上の課題とその対応2020

    • Author(s)
      徳橋亮治,宮田秀太,馬越一也,野中哲也
    • Journal Title

      鋼構造論文集,日本鋼構造協会

      Volume: 第27巻,108号 Pages: 105-115

    • NAID

      130008132614

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] THREE-DIRECTIONAL PUSHOVER ANALYSIS AND DAMAGE INVESTIGATION OF A LARGE-SCALE CABLE-STAYED STEEL BRIDGE USING SUPERCOMPUTING2020

    • Author(s)
      L. Li1, T. Nonaka, N. Xiang, Y. Hatsushika, M. Obata
    • Journal Title

      5th International Conference on Advances in Civil Engineering

      Volume: -

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 非エネルギー吸収部材の損傷を伴う上路式鋼アーチ橋の構造全体系の地震時終局挙動2020

    • Author(s)
      奥村徹,馬越一也,野中哲也,吉野廣一
    • Journal Title

      構造工学論文集

      Volume: Vol.66A Pages: 264-273

    • NAID

      130007830354

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 道路ネットワークをつなぎつづける2019

    • Author(s)
      野中哲也
    • Journal Title

      橋梁と基礎

      Volume: Vol.53 Pages: 125-128

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Presentation] SEISMIC DAMAGE ANALYSIS OF A LARGE-SCALE CABLE-STAYED STEEL BRIDGE USING PRECISE SHELL MODELS AND SUPERCOMPUTING2020

    • Author(s)
      Nailiang Xiang, Tetsuya Nonaka, Makoto Obata, Liao Li
    • Organizer
      土木学会第75回年次学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] シェル要素を用いた超大規模トラス橋モデルのPushover解析2019

    • Author(s)
      森本優美,野中哲也,奥村徹,吉野廣一
    • Organizer
      土木学会第74回年次学術講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] シェル要素を用いた耐震解析の高度化に向けたプログラム開発2019

    • Author(s)
      奥村徹,野中哲也,馬越一也,吉野廣一
    • Organizer
      土木学会第74回年次学術講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] ペタスケール計算による超大規模鋼トラス橋モデルの耐震解析2018

    • Author(s)
      野中哲也,森本優美,吉野廣一
    • Organizer
      土木学会第73回年次学術講演会
    • Related Report
      2018 Annual Research Report

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Published: 2018-04-23   Modified: 2022-01-27  

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