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Steel and Composite Structures Volume 45, Number 1, October10 2022 , pages 101-118 DOI: https://doi.org/10.12989/scs.2022.45.1.101 |
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Experimental seismic behavior of RC special-shaped column to steel beam connections with steel jacket |
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Jiashu Hao, Qingying Ren, Xingqian Li, Xizhi Zhang, Yongjun Ding and Shaohua Zhang
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| Abstract | ||
| The seismic performance of the reinforced concrete (RC) special-shaped column to steel beam connections with steel jacket used in the RC column to steel beam fabricated frame structures was investigated in this study. The three full-scale specimens were subjected to cyclic loading. The failure mode, ultimate bearing capacity, shear strength capacity, stiffness degradation, energy dissipation capacity, and strain distribution of the specimens were studied by varying the steel jacket thickness parameters. Test results indicate that the RC special-shaped column to steel beam connection with steel jacket is reliable and has excellent seismic performance. The hysteresis curve is full and has excellent energy dissipation capacity. The thickness of the steel jacket is an important parameter affecting the seismic performance of the proposed connections, and the shear strength capacity, ductility, and initial stiffness of the specimens improve with the increase in the thickness of the steel jacket. The calculation formula for the shear strength capacity of RC special-shaped column to steel beam connections with steel jacket is proposed on the basis of the experimental results an | ||
| Key Words | ||
| numerical simulation; precast RC special-shaped column; prefabricated joint; RCS fabricated frame structure; seismic behavior; shear capacity; steel jacket | ||
| Address | ||
| Jiashu Hao and Xingqian Li:School of Civil Engineering, Tianjin University, Tianjin, China Qingying Ren:China Architecture Design & Res Grp, Beijing, China Xizhi Zhang:1)Tianjin University Research Institute of Architectural Design & Urban planning, Tianjin, China 2)Key Laboratory of Civil Engineering Structures and New Materials Laboratory, Tianjin University, Tianjin, China Yongjun Ding and Shaohua Zhang:Tianjin University Research Institute of Architectural Design & Urban planning, Tianjin, China | ||