鋼板挿入CLTドリフトピン接合部の最大耐力、降伏耐力および初期剛性の推定と実験による検証

• 中島 昌一

  国立研究開発法人建築研究所構造研究グループ

• 三木 徳人

  国土交通省国土技術政策総合研究所建築研究部構造基準研究室

• 秋山 信彦

  国土交通省国土技術政策総合研究所建築研究部評価システム研究室

• 荒木 康弘

  国土交通省国土技術政策総合研究所建築研究部基準認証システム研究室

書誌事項

タイトル別名

• ESTIMATION OF INITIAL STIFFNESS, YIELD LOAD, AND ULTIMATE LOAD FOR THE CLT DRIFT PINNED CONNECTION WITH STEEL INSERTED PLATE AND EXPERIMENTAL VERIFICATION

抄録

Drift pinned joints are generally used in glulam or sawn timber structure, and evaluation methods for calculating characteristic values such as ultimate load, yield load and initial stiffness have been established. On the other hand, there were a few previous researches for yield load based on European yield theory for CLT structure. For the initial stiffness, it is considered that the beam theory on the elastic foundation can be applied, but there are few researches on the calculation method. There is no research on the evaluation method of the ultimate load with CLT failure. Therefore, we focused on the fact that the in-plane anisotropy of CLT is small, and proposed the calculation method of the ultimate load for CLT drift pin joint. In addition, a simple calculation method for the yield load and the initial stiffness is summarized based on the previous research. The accuracy of the evaluation methods was confirmed by the moment resistance test of the CLT wall leg joints using Sugi CLT (S60-5-5) and drift pins (φ16, SS400).   The conclusions were; (1) The calculated values of the ultimate load considering group shear failure were in good agreement with the test results (2) The evaluation method of ultimate load considering group shear failure was expressed as the sum of tensile strength and shear strength on the assumed failure cross sections. (3) The calculated yield loads based on the yield theory were in good agreement with the test results. (4) The calculated initial stiffnesses based on the beam theory on the elastic foundation were almost twice as large as the test results. (5) In the scope of application (CLT thickness 90 mm to 270 mm, drift pin diameter 12 mm to 20 mm), the maximum deference of calculated values of the initial stiffness considering the multi-layer and that of the simplified single-layer was about ±20%.

収録刊行物

• 日本建築学会構造系論文集

  日本建築学会構造系論文集 86 (783), 793-803, 2021-05-30

  日本建築学会

キーワード

• CLT
• ドリフトピン接合部
• 降伏理論
• 弾性床上の梁理論
• 集合型せん断破壊

詳細情報

• CRID: 1390006740593911424
• NII論文ID: 130008045742
• NII書誌ID: AN10438559
• DOI: 10.3130/aijs.86.793
• ISSN: 18818153
• ISSN: 13404202
• Web Site: https://www.jstage.jst.go.jp/article/aijs/86/783/86_793/_pdf
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• 抄録ライセンスフラグ: 使用不可