原文传递
Experimental Investigation on Self-Centering Steel-Timber Hybrid Beam-Column Connections
| 题名： | Experimental Investigation on Self-Centering Steel-Timber Hybrid Beam-Column Connections |
| 正文语种： | eng |
| 作者： | Li, Zheng;Chen, Fei;He, Minjuan;Long, Weiguo;Ou, Jiajia;Li, Minghao |
| 作者单位： | Tongji Univ;Tongji Univ;Tongji Univ;China Southwest Architectural Design & Res Inst Co;China Southwest Architectural Design & Res Inst Co;Univ British Columbia |
| 关键词： | Steel-timber hybrid connection;Self-centering connection;Hysteretic performance;Quasi-static cyclic test |
| 摘要： | Self-centering heavy timber frames rely on the self-centering beam-column timber connections to limit damage and provide the recentering capability. However, low compressive strength and stiffness perpendicular to the grain of the timber columns have long been a design challenge, which yields low initial post-tensioning forces and possibly a significant loss of post-tensioning forces over the building service life. To address this issue, this paper proposes a new design solution for the self-centering steel-timber hybrid beam-column connections, in which the timber column is replaced by a steel-timber composite column. Cyclic tests were conducted on four beam-column connection specimens with post-tensioning. During the gap-opening, the composite column provided a stiff foundation to the timber beam. The hysteretic curves of all four connections were in a flag shape. Compared with self-centering beam-column timber connections that had the same geometry and material properties, the proposed connection had a larger connection stiffness and an improved efficiency of dissipating energy. After the cyclic loading, the loss of post-tensioning force of the proposed connection was also lower than that of the counterpart timber connections. |
| 出版年： | 2023 |
| 期刊名称： | Journal of structural engineering |
| 卷： | 149 |
| 期： | 3 |
| 页码： | 04022256.1-04022256.17 |
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