Steel and Composite Structures

  • 제21권6호
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  • Pages.1369-1388
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  • 2016
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  • 1229-9367(pISSN)
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  • 1598-6233(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Performance-based evaluation of strap-braced cold-formed steel frames using incremental dynamic analysis

  • Davani, M.R. (Department of Civil Engineering, Yasouj University) ;
  • Hatami, S. (Department of Civil Engineering, Yasouj University) ;
  • Zare, A. (Department of Civil Engineering, Yasouj University)
  • 투고 : 2015.07.15
  • 심사 : 2016.08.22
  • 발행 : 2016.08.30
⟨ 이전 논문 다음 논문 ⟩

초록

This study is an effort to clearly recognize the seismic damages occurred in strap-braced cold formed steel frames. In order to serve this purpose, a detailed investigation was conducted on 9 full scale strap-braced CFS walls and the required data were derived from the results of the experiments. As a consequence, quantitative and qualitative damage indices have been proposed in three seismic performance levels. Moreover, in order to assess seismic performance of the strap-braced CFS frames, a total of 8 models categorized into three types are utilized. Based on the experimental results, structural characteristics are calculated and all frames have been modeled as single degree of freedom systems. Incremental dynamic analysis using OPENSEES software is utilized to calculate seismic demand of the strap-braced CFS walls. Finally, fragility curves are calculated based on three damage limit states proposed by this paper. The results showed that the use of cladding and other elements, which contribute positively to the lateral stiffness and strength, increase the efficiency of strap-braced CFS walls in seismic events.

키워드

참고문헌

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피인용 문헌

  1. Seismic design and performance of low energy dissipative CFS strap-braced stud walls pp.1573-1456, 2018, https://doi.org/10.1007/s10518-018-0465-y
  2. Numerical study on racking behavior of light steel frames with K-shaped bracing vol.16, pp.2, 2016, https://doi.org/10.1108/wje-12-2017-0407
  3. Shake table tests of three storey cold-formed steel structures with strap-braced walls vol.17, pp.7, 2019, https://doi.org/10.1007/s10518-019-00642-z
  4. Seismic mitigation of substation cable connected equipment using friction pendulum systems vol.72, pp.6, 2016, https://doi.org/10.12989/sem.2019.72.6.785
  5. Seismic analysis of high-rise steel frame building considering irregularities in plan and elevation vol.39, pp.1, 2016, https://doi.org/10.12989/scs.2021.39.1.065
  6. Seismic performance evaluation of CFS strap-braced buildings through experimental tests vol.33, pp.None, 2016, https://doi.org/10.1016/j.istruc.2021.05.098