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Feasibility Study on Seismic Block without Joint Mortar for Earthquake Mitigation in Developing Countries

Research Project

Project/Area Number 18K04425
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 23010:Building structures and materials-related
Research InstitutionShizuoka Institute of Science and Technology

Principal Investigator

Choi Ho  静岡理工科大学, 理工学部, 准教授 (40512009)

Co-Investigator(Kenkyū-buntansha) 晉 沂雄  明治大学, 理工学部, 専任講師 (60727006)
Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2019: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords耐震安全性 / 無モルタル / 耐震ブロック / 静的載荷実験 / 4点曲げ試験 / インターロッキング / 面外振動台実験 / 加速度分布 / 変位分布 / せん断応力度 / 等価粘性減衰定数 / 再利用率 / 形状探索 / 有限要素法 / 内蔵URM / 鉄筋コンクリート / 耐震性能評価 / 耐震補強 / 途上国
Outline of Final Research Achievements

The authors developed two types of block systems consisting only of main block and key block without joint mortar to improve the seismic performances and to enhance the workability. Two types of block systems have different key block shapes: one is the peanut shape, and the other is the H shape. In this study, in order to evaluate in- and out-of-plane seismic performances of the proposed block systems, two types of block walls are tested under in-plane cyclic loading test and out-of-plane 4-point bending test, including the typical block wall. As a result, the in-plane deformability and out-of-plane tensile stress of the proposed block systems were considerably higher than those of a typical block system.

Academic Significance and Societal Importance of the Research Achievements

アジア,南米,ヨーロッパなどの地震が多発する地域には,組積造建物が多用されているが,この建物の耐震性能は他の構造形式に比べ相対的に乏しく,地震が発生すると常に被害を受けている。また,地震大国である日本においてもブロック塀が転倒して死者が出るなど,ブロック塀の被害は地震が発生すると必ず起きている。このような状況から,本研究で開発した耐震ブロックを使用すると,目地モルタルを使わないため,安定的に耐震性が確保でき,世界の地震被害軽減につながると確信している。

Report

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

    (12 results)

All 2020 2019 2018

All Presentation (11 results) (of which Int'l Joint Research: 2 results) Funded Workshop (1 results)

  • [Presentation] In-plane Seismic Behavior of New Type Masonry Walls without Joint Mortar2020

    • Author(s)
      H. Choi, KW. Jin, JC. Jeong, BS. Kim, EJ. Hwang
    • Organizer
      Proceedings of The 17th World Conference on Earthquake Engineering
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Experimental Evaluation of Out-of-Plane Performance of Non-Structural Brick Masonry Wall Using Shaking Table Test2020

    • Author(s)
      DG Jose Tomas, Hata Ryuki, Pradhan Sujan, Rokhyun Yoon, Sanada Yasushi, Ho Choi, Jin Kiwoong
    • Organizer
      日本建築学会近畿支部研究報告集
    • Related Report
      2020 Annual Research Report
  • [Presentation] Out-of-Plane Performance Evaluation of Brick Masonry Infill Wall Using Shaking Table Test - Part 1 Experimental program2020

    • Author(s)
      Sujan Pradhan,Jose Diaz Guzman,畠龍樹,尹ロク現,真田靖士,崔琥,晉沂雄
    • Organizer
      Summaries of Technical Papers of Annual Meeting, Architectural Institute of Japan
    • Related Report
      2020 Annual Research Report
  • [Presentation] Out-of-Plane Performance Evaluation of Brick Masonry Infill Wall Using Shaking Table Test - Part 2 Experimental results and evaluation of the out-of-plane resistance2020

    • Author(s)
      Jose Diaz Guzman,Sujan Pradhan,畠龍樹,尹ロク現,真田靖士,崔琥,晉沂雄
    • Organizer
      Summaries of Technical Papers of Annual Meeting, Architectural Institute of Japan
    • Related Report
      2020 Annual Research Report
  • [Presentation] 無目地モルタル耐震ブロックの実用化研究-その2 面内静的載荷実験2020

    • Author(s)
      崔琥,晉沂雄,鄭在天,金峰ソク,黄彦ジュ
    • Organizer
      日本建築学会大会学術講演梗概集
    • Related Report
      2020 Annual Research Report
  • [Presentation] 無目地モルタル耐震ブロックの実用化研究(その1)有限要素解析による形状決定2019

    • Author(s)
      崔琥
    • Organizer
      日本建築学会大会学術講演梗概集
    • Related Report
      2019 Research-status Report
  • [Presentation] DIAGONAL COMPRESSIVE STRUT MECHANISM OF INFILL MASONRY WALLS FOR MULTI BAYS AND STORIES2019

    • Author(s)
      Ho Choi
    • Organizer
      7th International Colloquium on Performance, Protection and Strengthening of Structures Under Extreme Loading and Events
    • Related Report
      2019 Research-status Report
  • [Presentation] Shear Strength Evaluation of Masonry Infill Walls2019

    • Author(s)
      Ho Choi
    • Organizer
      The Proceeding of the Korea Concrete Institute
    • Related Report
      2019 Research-status Report
  • [Presentation] In-plane Seismic Performance of Seismic Concrete Block Walls without Joint Mortar2019

    • Author(s)
      Ho Choi, Bongseok Kim, Kiwoong Jin, Jaecheon Jeong, Eonju Hwang
    • Organizer
      The Proceeding of the Korea Concrete Institute
    • Related Report
      2019 Research-status Report
  • [Presentation] Analytical Evaluation on Seismic Capacity of Korean Typical School Building2018

    • Author(s)
      Ho Choi, Makoto Maruta
    • Organizer
      The 12th International Symposium on Architectural Interchanges in Asia (ISAIA)
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Shear Strength Evaluation of Masonry Infill Walls2018

    • Author(s)
      Shear Strength Evaluation of Masonry Infill Walls
    • Organizer
      The Proceeding of the Korea Concrete Institute
    • Related Report
      2018 Research-status Report
  • [Funded Workshop] The 12th International Symposium on Architectural Interchanges in Asia (ISAIA)2018

    • Related Report
      2018 Research-status Report

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

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