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Closed-form elastic-plastic response of buildings subjected to critical near-fault ground motion and critical long-period ground motion

Research Project

Project/Area Number 17K18922
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Research Field Architecture, Building engineering, and related fields
Research InstitutionKyoto University

Principal Investigator

TAKEWAKI Izuru  京都大学, 工学研究科, 教授 (20155055)

Co-Investigator(Kenkyū-buntansha) 藤田 皓平  京都大学, 工学研究科, 准教授 (40648713)
Project Period (FY) 2017-06-30 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Fiscal Year 2018: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2017: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Keywords断層近傍地震動 / 長周期長時間地震動 / 極限的地震動 / 弾塑性応答 / レジリエンス / インパルス入力 / 制振構造 / 免震構造 / 耐震設計 / 長周期地震動 / ダブルインパルス / 極限地震動 / 非線形ダンパー / 極限外乱法 / 制振設計 / 不確定性
Outline of Final Research Achievements

The purpose of this project is to enhance the reliability of the safety evaluation of elastic-plastic structures subjected to near-fault earthquake ground motions and long-duration ground motions by introducing an original approach to express these peculiar ground motions in terms of a set of pulses (double impulse and multi impulse). The critical elastic-plastic responses of SDOF models under these ground motions were derived in closed form and the optimal placement method of passive viscous dampers for MDOF models was developed by defining the critical timing of the second impulse of the double impulse.

Academic Significance and Societal Importance of the Research Achievements

建物の耐震設計にとって重要なことは、共振が生じても安全性が確保されるような建物の剛性と減衰を如何に決定するかということである。本研究では、共振が生じることを最悪な状態としてとらえ、特徴的な地震動をインパルス列を用いて表現するという独創的な考えのもとに、そのような共振状態を簡潔に表現することに成功した。その方法により、建築構造物の簡易的な安全性評価の信頼度を格段に向上させることに成功した。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (12 results)

All 2020 2019 2018 2017

All Journal Article (11 results) (of which Peer Reviewed: 11 results,  Open Access: 7 results) Book (1 results)

  • [Journal Article] Comparative Investigation on Optimal Viscous Damper Placement for Elastic-Plastic MDOF Structures: Transfer Function Amplitude or Double Impulse2020

    • Author(s)
      H. Akehashi, I. Takewaki
    • Journal Title

      Soil Dynamics and Earthquake Engineering

      Volume: 130 Pages: 105987-105987

    • DOI

      10.1016/j.soildyn.2019.105987

    • NAID

      120006773949

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Collapse-limit input level of critical double impulse for damped bilinear hysteretic SDOF system with negative post-yield stiffness2019

    • Author(s)
      Y. Saotome1, K. Kojima, I. Takewaki
    • Journal Title

      Frontiers in Built Environment

      Volume: 5: 106

    • DOI

      10.3389/fbuil.2019.00106

    • NAID

      120007033630

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Critical response evaluation of damped bilinear hysteretic SDOF model under long duration ground motion simulated by multi impulse motion2019

    • Author(s)
      H.Akehashi, K.Kojima, Ehsan Noroozinejad Farsangi, I.Takewaki
    • Journal Title

      Int J. of Earthquake and Impact Eng.

      Volume: 掲載決定

    • NAID

      120006644060

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Critical response of elastic-plastic SDOF systems with nonlinear viscous damping under simulated earthquake ground motions2019

    • Author(s)
      G. Tamura, K. Kojima, I. Takewaki
    • Journal Title

      Heliyon

      Volume: 5 Issue: 2 Pages: e01221-e01221

    • DOI

      10.1016/j.heliyon.2019.e01221

    • NAID

      120006636657

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Optimal viscous damper placement for elastic-plastic MDOF structures under critical double impulse2019

    • Author(s)
      H.Akehashi and I.Takewaki
    • Journal Title

      Frontiers in Built Environment

      Volume: 5: 20

    • DOI

      10.3389/fbuil.2019.00020

    • NAID

      120006596487

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Critical response of nonlinear base- isolated building considering soil-structure interaction under double impulse as substitute for near-fault ground motion2018

    • Author(s)
      H.Akehashi, K.Kojima, K.Fujita, I.Takewaki
    • Journal Title

      Frontiers in Built Environment

      Volume: 4: 34

    • DOI

      10.3389/fbuil.2018.00034

    • NAID

      120006534620

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Dual hysteretic damper system effective for broader class of earthquake ground motions2018

    • Author(s)
      T. Shiomi, K. Fujita, M. Tsuji and I. Takewaki
    • Journal Title

      Int. J. Earthquake and Impact Engineering

      Volume: 掲載決定

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] A simple response evaluation method for base-isolation building-connection hybrid structural system under long-period and long-duration ground motion2018

    • Author(s)
      K. Hayashi, K. Fujita, M. Tsuji and I. Takewaki
    • Journal Title

      Frontiers in Built Environment

      Volume: 4(2)

    • DOI

      10.3389/fbuil.2018.00002

    • NAID

      120006534619

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Critical response of SDOF damped bilinear hysteretic system under double impulse as substitute for near-fault ground motion2018

    • Author(s)
      H.Akehashi, K.Kojima and I.Takewaki
    • Journal Title

      Frontiers in Built Environment

      Volume: 4(5)

    • DOI

      10.3389/fbuil.2018.00005

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Critical steady-state response of SDOF bilinear hysteretic system under multi impulse as substitute of long-duration ground motions2017

    • Author(s)
      K.Kojima and I.Takewaki
    • Journal Title

      Frontiers in Built Environment

      Volume: 3(41)

    • DOI

      10.3389/fbuil.2017.00041

    • NAID

      120006636658

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] General evaluation method of seismic resistance of residential house under multiple consecutive severe ground motions with high intensity2017

    • Author(s)
      Y.Ogawa, K.Kojima and I.Takewaki
    • Journal Title

      Int. J. Earthquake and Impact Engineering

      Volume: 2(2) Issue: 2 Pages: 158-174

    • DOI

      10.1504/ijeie.2017.089055

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Book] Resilient Structures and Infrastructures2019

    • Author(s)
      K. Kojima, K. Fujita, I. Takewaki
    • Total Pages
      494
    • Publisher
      Springer
    • ISBN
      9789811374456
    • Related Report
      2019 Annual Research Report

URL: 

Published: 2017-07-21   Modified: 2021-02-19  

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