2022 Fiscal Year Final Research Report
Connection Design Method of Steel and Concrete by Mechanical Shear Connector Processed by Burring Press
| Project/Area Number |
20K04785
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Review Section |
Basic Section 23010:Building structures and materials-related
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| Research Institution | Fukuoka University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
堺 純一 福岡大学, 工学部, 教授 (30215587)
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| Project Period (FY) |
2020-04-01 – 2023-03-31
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| Keywords | 合成構造 / 機械的ずれ止め / 接合部 / 応力伝達 / 抵抗機構 / 構造性能評価法 / 設計式 / 実験 |
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| Outline of Final Research Achievements |
A shear connector for joining steel and concrete is an important element for demonstrating the excellent seismic performance of a composite structure. Generally, steel rods called headed studs are used. However, in terms of stress transmission, the problem is that the rigidity is small, and if it is subjected to repeated forces, the shear strength may decrease and the expected effect may not be obtained. In this study, in order to solve these problems, we conducted multiple experiments and analyzes on a newly developed high-performance element called Burring Shear Connector (BSC). A design method of the shear connector corresponding to the installation of BSC was proposed. In addition, we presented a performance evaluation method for Shear connector subjected to cyclic loading, and succeeded in establishing a rational design and construction technology. Connection Design Method of Steel and Concrete by Mechanical Shear Connector Processed by Burring Press.
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| Free Research Field |
耐震構造 合成構造 鋼構造 接合技術
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| Academic Significance and Societal Importance of the Research Achievements |
バーリングシアコネクタ（BSC）鋼板の形状特性と力学特性の利点を活かした機械的ずれ止めは，従来の鋼とコンクリートの接合技術に比べて，より強固で強靭な一体化が図れる．本研究の成果で提案したずれ止めの耐力評価式を用いることで，BSC鋼板の設置方法に応じた異種材料間の応力伝達を確実なものとし，部材の損傷抑制効果も期待した設計を実現できる．また，繰返しの荷重履歴によるずれ止めの強度低下の定量的な分析から性能評価手法を提示した．これにより従来の技術的限界を突破し，建築合成構造の信頼性・生産性・施工性が向上するだけでなく，大規模な地震後も建物の耐震性を維持しながら長期間にわたる使用が期待できる．
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