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Influence of testing method on evaluated result of lateral properties of nailed joints

Research Project

Project/Area Number 18K14504
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 40020:Wood science-related
Research InstitutionShizuoka University (2019-2021)
Forest Research and Management Organization (2018)

Principal Investigator

Ogawa Keita  静岡大学, 農学部, 助教 (10805021)

Project Period (FY) 2018-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2020: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2019: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2018: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Keywords木質構造 / 木材 / 合板 / 釘接合 / せん断 / 木質接合部 / 釘 / 性能評価 / 釘接合部 / せん断性能 / 試験方法
Outline of Final Research Achievements

In this study, reserch plans that removed the influence of the physical properties of the specimens as much as possible was designed, in order to collect the data that allowed discussion of the influence of the test method on the evaluation results lateral properties of nailed joints between wood and plywood. For example, it was quantitatively shown that the ASTM method showed more variation in the initial loading range than the JAS method, and that the panel type specimen reached failure with relatively smaller displacements than the others.
In addition, the reason for occuring the variation between the methods of ASTM and JAS were clarified using simulations. By constructing a program using random numbers, it was shown that the variation can be explained as a counterbalancing effect of the use of multiple nails in the same specimen.

Academic Significance and Societal Importance of the Research Achievements

木材と合板との釘接合は,木質構造における重要な接合部であり,そのせん断性能の把握は大きな関心事である。様々な利点を背景に,現在では多くのせん断試験の評価試験方法が存在しているが,試験方法の違いが評価結果に及ぼす影響を明らかにすることが重要である。これまでの長年の木質構造の研究の中で,釘接合部のせん断性能について多くのデータが蓄積されているが,今後はこれらのデータの活用にさらなる関心が集まることが予想される。本研究で得られた知見は,これら既存のデータの有効活用に資することが期待できる。

Report

(5 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (6 results)

All 2020 2019

All Journal Article (1 results) (of which Peer Reviewed: 1 results) Presentation (5 results)

  • [Journal Article] Comparison of evaluation results of nailed joints in shear properties obtained from two methods2019

    • Author(s)
      Ogawa Keita
    • Journal Title

      Wood and Fiber Science

      Volume: 54 Pages: 441-447

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] 試験方法の違いが釘接合部のせん断挙動に与える影響2020

    • Author(s)
      渡邉直希,小川敬多,小林研治
    • Organizer
      2020年度日本建築学会大会(千葉)
    • Related Report
      2020 Research-status Report
  • [Presentation] 面材張り耐力壁の面内せん断試験における加力方法の違いによる影響2020

    • Author(s)
      渡邉直希,小川敬多,小林研治
    • Organizer
      第70回日本木材学会大会
    • Related Report
      2019 Research-status Report
  • [Presentation] 釘接合部のせん断性能評価における試験方法の違いの影響2019

    • Author(s)
      小川敬多
    • Organizer
      2019年度日本建築学会大会(北陸)
    • Related Report
      2019 Research-status Report
  • [Presentation] 異なる試験方法による釘接合部のせん断挙動の比較2019

    • Author(s)
      小川敬多
    • Organizer
      2019年度日本木材学会中部支部大会
    • Related Report
      2019 Research-status Report
  • [Presentation] 異なる試験方法による釘接合部のせん断性能評価結果の比較2019

    • Author(s)
      小川敬多
    • Organizer
      第69回日本木材学会大会
    • Related Report
      2018 Research-status Report

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Published: 2018-04-23   Modified: 2023-01-30  

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