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Analysis and assessment technology for seismic collapse safety of steel building structures

Research Project

Project/Area Number 20H00269
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Review Section Medium-sized Section 23:Architecture, building engineering, and related fields
Research InstitutionHokkaido University

Principal Investigator

OKAZAKI TAICHIRO  北海道大学, 工学研究院, 教授 (20414964)

Co-Investigator(Kenkyū-buntansha) 松井 良太  北海道大学, 工学研究院, 准教授 (00624397)
岸田 明子  国立研究開発法人防災科学技術研究所, 地震減災実験研究部門, 契約研究員 (10599468)
松宮 智央  近畿大学, 建築学部, 教授 (20454639)
高橋 典之  東北大学, 工学研究科, 准教授 (60401270)
藤原 淳  国立研究開発法人防災科学技術研究所, 地震減災実験研究部門, 契約研究員 (80817049)
長江 拓也  名古屋大学, 減災連携研究センター, 准教授 (90402932)
Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥46,150,000 (Direct Cost: ¥35,500,000、Indirect Cost: ¥10,650,000)
Fiscal Year 2023: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2022: ¥17,160,000 (Direct Cost: ¥13,200,000、Indirect Cost: ¥3,960,000)
Fiscal Year 2021: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2020: ¥24,960,000 (Direct Cost: ¥19,200,000、Indirect Cost: ¥5,760,000)
Keywords鋼構造建築物 / 耐震性能 / 振動台実験 / コンピュータ解析 / 耐震性能余裕度 / 倒壊挙動
Outline of Research at the Start

設計想定を超える地震動に対する建築構造物の安全性については、科学的な検証技術は確立されておらず、実務設計でも陽に考慮されていない。この問題を解決する糸口として、鋼構造建築物が大きく変形し、倒壊にいたる非線形かつ動的な挙動を、定量的に把握するための振動台実験を実行する。連層骨組実験によって、部材破壊から応力再分配、振動特性の変化、変形の集中と増大を経て、倒壊にいたる過程を詳細に観察する。実験的に得られた挙動を精度よく追跡できるコンピュータ解析技術を蓄積し、種々の誤差に関する感度分析を実施する。目指す成果は、鋼構造建築物の耐震性能余裕度を定量的に把握するための、性能評価技術の高度化である。

Outline of Final Research Achievements

The objective to collect experimental data on the large deformation and collapse behavior of steel building structures was fulfilled by conducting several shake tables tests: In 2021, a scaled, four-story steel building specimen was tested to collapse; In 2020, the PI's collaborated with Japan and US researchers to test a new resilient steel system at E-Defense; In 2022, the PI's participated in a 1-story steel building tests at E-Defense, contributing to detailed measurement of force and deformation in key members. The experimental data obtained from the shake-table tests was combined with data available in the literature to advance computer analysis methods for steel buildings subjected to strong earthquake ground motion. Methods to simulate the stiffness and strength degradation caused by local-buckling deformation and fracture was developed. Schemes to reproduce the gradual change in vibration properties and force redistribution following damage was examined.

Academic Significance and Societal Importance of the Research Achievements

建築物に対する設計要求は高度化・複雑化しており、千年に一度の大地震に対しても、安全・安心はおろか、事業継続・生活継続が望まれるようになった。設計想定を超える地震動に対する構造安全性については、科学的な検証技術は確立されておらず、実務設計でも陽に考慮されていない。そこで、本研究は、典型的な鋼構造建築物が倒壊に至るまでの過程を実験的に確認し、その過程を追跡するためのコンピュータ解析技術を開発し、解析技術をさらに改善するための課題を抽出した。建築物の耐震性能余裕度の評価という、耐震工学の難題に寄与する成果を得た。

Report

(6 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • 2020 Comments on the Screening Results   Annual Research Report
  • Research Products

    (23 results)

All 2024 2023 2022 2021 2020 Other

All Int'l Joint Research (3 results) Journal Article (2 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 2 results,  Open Access: 1 results) Presentation (18 results) (of which Int'l Joint Research: 6 results,  Invited: 1 results)

  • [Int'l Joint Research] カリフォルニア大学デービス校(米国)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] ローザンヌ工科大学(スイス)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] イリノイ大学/リーハイ大学/オレゴン州立大学(米国)

    • Related Report
      2020 Annual Research Report
  • [Journal Article] Modeling uncertainty of specimens employing spines and force‐limiting connections tested at E‐defense shake table2023

    • Author(s)
      Astudillo Bryam、Rivera David、Duke Jessica、Simpson Barbara、Fahnestock Larry A.、Sause Richard、Ricles James、Kurata Masahiro、Okazaki Taichiro、Kawamata Yohsuke、Tao Zhuoqi、Qie Yi
    • Journal Title

      Earthquake Engineering and Structural Dynamics

      Volume: 52 Issue: 14 Pages: 4638-4659

    • DOI

      10.1002/eqe.3976

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] INFLUENCE OF VISCOUS DAMPING MODEL ON TIME-HISTORY RESPONSE ANALYSIS OF ELASTIC-PLASTIC SYSTEMS (PART 1): COMPARISON OF DAMPING MODELS2020

    • Author(s)
      FUKUTOMI Sho、OKAZAKI Taichiro、MATSUI Ryota、ASARI Tetsuhiro
    • Journal Title

      Journal of Structural and Construction Engineering (Transactions of AIJ)

      Volume: 85 Issue: 778 Pages: 1555-1563

    • DOI

      10.3130/aijs.85.1555

    • NAID

      130007964209

    • ISSN
      1340-4202, 1881-8153
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] Numerical simulation of a reduced-scale, 4-story steel moment-resisting frame tested to collapse2024

    • Author(s)
      Jionghui Li, Martin Somarriba, Taichiro Okazaki, Takuya Nagae, Ryota Matsui
    • Organizer
      11th International Conference on Behavior of Steel Structures in Seismic Areas (STESSA 2024)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Shake-table collapse tests of a reduced-scale, 4-story steel moment resisting frame2024

    • Author(s)
      Martin Somarriba, Jionghui Li, Taichiro Okazaki, Takuya Nagae, Tomohiro Matsumiya
    • Organizer
      11th International Conference on Behavior of Steel Structures in Seismic Areas (STESSA 2024)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Force limiting connections to mitigate accelerations in moment resisting frames with pinned-base spines2024

    • Author(s)
      Jessica Duncan (Duke), Bryam Astudillo, Richard Sause, James Ricles, Larry Fahnestock, Barbara Simpson, Masahiro Kurata, Yohsuke Kawamata, Taichiro Okazaki, Zhuoqi Tao, and Yi Qie
    • Organizer
      11th International Conference on Behavior of Steel Structures in Seismic Areas (STESSA 2024)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Panel zone and column response in a shake-table test on a 10-story steel moment-resisting frame2024

    • Author(s)
      Jionghui Li, Jun Fujiwara, Koichi Kajiwara, Akiko Kishida, Ryota Nishi, Taichiro Okazaki, Takuya Nagae, Jialiang Jin, Tatsuya Asai
    • Organizer
      18th World Conference on Earthquake Engineering (18WCEE)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Shake-Table Collapse Test of a Scaled 4-Story Steel Moment-Frame Part 4: Transition of Structural Behavior Following Damage Progression2023

    • Author(s)
      SOMARRIBA Martin, OKAZAKI Taichiro, NAGAE Takuya, MATSUMIYA Tomohiro
    • Organizer
      日本建築学会大会学術講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Shake-Table Collapse Test of a Scaled 4-Story Steel Moment-Frame Part 1: Test Plan2022

    • Author(s)
      OKAZAKI Taichiro, SOMARRIBA Martin, NAGAE Takuya, MATSUMIYA Tomohiro, ASAI Kenshiro
    • Organizer
      日本建築学会大会学術講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Shake-Table Collapse Test of a Scaled 4-Story Steel Moment-Frame Part 2: Test Results2022

    • Author(s)
      SOMARRIBA Martin, OKAZAKI Taichiro, NAGAE Takuya, MATSUMIYA Tomohiro
    • Organizer
      日本建築学会大会学術講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Shake-Table Collapse Test of a Scaled 4-Story Steel Moment-Frame Part 3: Numerical Analysis2022

    • Author(s)
      LI Jionghui, OKAZAKI Taichiro, NAGAE Takuya, MATSUI Ryota, SOMARRIBA Martin
    • Organizer
      日本建築学会大会学術講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Comprehensive seismic performance assessment testing Part 5 Ultimate failure simulation of the ten-story test specimen2022

    • Author(s)
      JIN Jialiang, OKAZAKI Taichiro, NAGAE Takuya, TAKAHASHI Noriyuki, MATSUMIYA Tomohiro, FUJIWARA Jun, KISHIDA Akiko, KAJIWARA Koichi
    • Organizer
      日本建築学会大会学術講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 画像処理と モニタリングを用いた間仕切壁のフラジリティ 評価 に関する 基礎的 検討2022

    • Author(s)
      梅林舞,高橋典之,千田紘之,長江拓也,岡崎太一郎,松宮智央,梶原浩一,中澤博志,神崎喜和
    • Organizer
      構造工学シンポジウム
    • Related Report
      2021 Annual Research Report
  • [Presentation] Numerical simulation of fracture propagation in high-rise buildings subjected to long period-long duration earthquakes2021

    • Author(s)
      Taichiro Okazaki, Akiri Seki, Hashini Herath, Takuya Nagae
    • Organizer
      17th World Conference on Earthquake Engineering
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Computational study on the seismic behavior of steel chevron braced frames in Japan2021

    • Author(s)
      Ilanildo Dias, Akiri Seki, Taichiro Okazaki
    • Organizer
      17th World Conference on Earthquake Engineering
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 鋼構造骨組に対する地震応答解析の精度検証の振動台実験 その2 解析方法と解析結果2021

    • Author(s)
      浅井健志郎・谷口佳代・長江拓也・岡崎太一郎・松宮智央・高橋典之・中澤博志・松井良太・梶原浩一
    • Organizer
      日本建築学会大会学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 鋼構造骨組に対する地震応答解析の精度検証の振動台実験 その1設計と実験概要2021

    • Author(s)
      谷口佳代・浅井健志郎・長江拓也・岡崎太一郎・松宮智央・高橋典之・中澤博志・松井良太・梶原浩一
    • Organizer
      日本建築学会大会学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Full-Scale Shake Table Tests on Frame-Spine System with Force Limiting Connections Part 2: Test Results2021

    • Author(s)
      岡崎太一郎・Yi Qie・倉田真宏・河又洋介・Larry A. Fahnestock
    • Organizer
      日本建築学会大会学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Full-Scale Shake Table Tests on Steel Frame-Spine System with Force Limiting Connections Part 1: Test Plan2021

    • Author(s)
      Yi Qie・岡崎太一郎・倉田真宏・河又洋介・Larry A. Fahnestock
    • Organizer
      日本建築学会大会学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Full-Scale Shake Table Tests on Steel Frame-Spine System with Force Limiting Connections2020

    • Author(s)
      DIAS Ilanildo, OKAZAKI Taichiro, MATSUI Ryota, ASARI Tetsuhiro
    • Organizer
      2020年度日本建築学会大会(関東)学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Fracture Simulation of Beams in a High-Rise Building Subjected to Long Period Ground Motion Part 2 Monte Carlo Simulation over Fatigue Parameter2020

    • Author(s)
      OKAZAKI Taichiro, SEKI Akiri, MATSUI Ryota, NAGAE Takuya
    • Organizer
      2020年度日本建築学会大会(関東)学術講演会
    • Related Report
      2020 Annual Research Report

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Published: 2020-04-28   Modified: 2025-01-30  

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