Steel and Composite Structures

  • 제20권3호
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  • Pages.599-621
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  • 2016
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  • 1229-9367(pISSN)
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  • 1598-6233(eISSN)
테크노프레스 (Techno-Press)
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DOI QR Code

Seismic experiment and analysis of rectangular bottom strengthened steel-concrete composite columns

  • Hui, Cun (School of Architecture and Civil Engineering, Zhongyuan University of Technology) ;
  • Zhu, Yanzhi (School of Architecture and Civil Engineering, Zhongyuan University of Technology) ;
  • Cao, Wanlin (College of Architecture and Civil Engineering, Beijing University of Technology) ;
  • Wang, Yuanqing (Department of Civil Engineering, Tsinghua University)
  • 투고 : 2015.09.11
  • 심사 : 2015.11.14
  • 발행 : 2016.02.29
⟨ 이전 논문 다음 논문 ⟩

초록

In order to study the working mechanism of rectangular steel-concrete composite columns subjected to compression-bending load and further determine the seismic performance index, a bottom strengthened rectangular steel reinforced concrete (SRC) column with concealed steel plates and a bottom strengthened rectangular concrete filled steel tube (CFST) columns were proposed. Six column models with different configurations were tested under horizontal low cyclic loading. Based on the experiments, the load-bearing capacity, stiffness and degradation process, ductility, hysteretic energy dissipation capacity, and failure characteristics of the models were analyzed. The load-bearing capacity calculation formulas for a normal section and an oblique section of bottom strengthened rectangular steel-concrete composite columns were pesented and a finite element (FE) numerical simulation of the classical specimens was performed. The study shows that the load-bearing capacity, ductility, and seismic energy dissipation capacity of the bottom strengthened rectangular steel-concrete composite columns are significantly improved compared to the conventional rectangular steel-concrete composite columns and the results obtained from the calculation and the FE numerical simulation are in good agreement with those from the experiments. The rectangular steel-concrete composite column with bottom strengthened shows better seismic behavior and higher energy dissipation capacity under suitable constructional requirements and it can be applied to the structure design of high-rise buildings.

키워드

과제정보

연구 과제 주관 기관 : National Natural Science Foundation of China, Education Commission

참고문헌

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피인용 문헌

  1. Seismic performance of composite column with double plastic hinges vol.182, 2017, https://doi.org/10.1016/j.compstruct.2017.09.024
  2. Interfacial bond properties and comparison of various interfacial bond stress calculation methods of steel and steel fiber reinforced concrete vol.26, pp.6, 2016, https://doi.org/10.12989/cac.2020.26.6.515
  3. Axial Compressive Performance of Steel-Reinforced Concrete Columns with Monosymmetric Cross-Shaped Steel vol.2021, pp.None, 2021, https://doi.org/10.1155/2021/6666996