異種鋼材を併用した偏心座屈ブレースの提案とその実験的検証

• 稲益 博行

  京都大学工学研究科建築学専攻　大学院生

• 䔥 博 謙

  博漢企業有限公司（台湾）　技術総監・Ph.D.

• 林 和宏

  豊橋技術科学大学大学院工学研究科　助教・博士（工学）

• 中島 正愛

  京都大学防災研究所　教授・Ph.D.

書誌事項

タイトル別名

• DEVELOPMENT AND EXPERIMENT OF NATURALLY BUCKLING BRACE COMBINING DIFFERENT TYPES OF STEEL MATERIAL
• イシュ コウザイ オ ヘイヨウ シタ ヘンシンザクツブレース ノ テイアン ト ソノ ジッケンテキ ケンショウ

抄録

 This paper proposes a new type of brace, named Naturally Buckling Brace (NBB), for building structural systems which significantly improves the drawbacks of braced frame systems. NBB consists of high strength steel (HSS) and low yielding steel (LYS) channels with an intended initial eccentricity along the brace length. LYS contributes to early yielding, and HSS contributes to keeping stiffness and stable behavior after LYS yielding. These effects can be also obtained by intended initial eccentricity. Tests with various design variables were conducted and subjected to cyclic loadings to examine the seismic performance of the proposed NBB. The results confirm that the proposed braces can achieve early yielding, provide a large post-yield stiffness and high ductility, which stably dissipate energy from around 0.02% story drift and prevent local buckling as well as deformation concentration until a very large story drift (greater than 3%) being reached. In addition, FEM model was built using FEM program “ABAQUS”, which shows strains in NBB are more distributed compared to those in CBB counterpart specimen.

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 80 (713), 1165-1174, 2015

  日本建築学会

キーワード

• 高強度鋼
• 低降伏点鋼
• 偏心
• 座屈ブレース

詳細情報

• CRID: 1390001205604719872
• NII論文ID: 130005094604
• NII書誌ID: AN10438559
• DOI: 10.3130/aijs.80.1165
• ISSN: 18818153
• ISSN: 13404202
• NDL書誌ID: 026600370
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I026600370
• Web Site: https://www.jstage.jst.go.jp/article/aijs/80/713/80_1165/_pdf
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可