Earthquakes and Structures

  • 제10권5호
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  • Pages.1125-1141
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  • 2016
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  • 2092-7614(pISSN)
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  • 2092-7622(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

DOI QR Code

Direct displacement based seismic design for single storey steel concentrically braced frames

  • Salawdeh, Suhaib (Civil Engineering, College of Engineering & Informatics, National University of Ireland) ;
  • Goggins, Jamie (Civil Engineering, College of Engineering & Informatics, National University of Ireland)
  • 투고 : 2015.07.25
  • 심사 : 2016.02.15
  • 발행 : 2016.05.25
⟨ 이전 논문 다음 논문 ⟩

초록

The direct displacement based design (DDBD) approach is spreading in the field of seismic design for many types of structures. This paper is carried out to present a robust approach for the DDBD procedure for single degree of freedom (SDOF) concentrically braced frames (CBFs). Special attention is paid to the choice of an equivalent viscous damping (EVD) model that represents the behaviour of a series of full scale shake table tests. The performance of the DDBD methodology of the CBFs is verified by two ways. Firstly, by comparing the DDBD results with a series of full-scale shake table tests. Secondly, by comparing the DDBD results with a quantified nonlinear time history analysis (NLTHA). It is found that the DDBD works relatively well and could predict the base shear forces ($F_b$) and the required brace cross sectional sizes of the actual values obtained from shake table tests and NLTHA. In other words, when comparing the ratio of $F_b$ estimated from the DDBD to the measured values in shake table tests, the mean and coefficient of variation ($C_V$) are found to be 1.09 and 0.12, respectively. Moreover, the mean and $C_V$ of the ratios of $F_b$ estimated from the DDBD to the values obtained from NLTHA are found to be 1.03 and 0.12, respectively. Thus, the DDBD methodology presented in this paper has been shown to give accurate and reliable results.

키워드

과제정보

연구 과제 주관 기관 : Science Foundation Ireland Marine Renewable Energy Ireland (MaREI)

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피인용 문헌

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  2. Shake table assessment of gusset plate connection behaviour in concentrically braced frames vol.138, 2017, https://doi.org/10.1016/j.jcsr.2017.07.022
  3. Study on the effects of various mid-connections of x-brace on frame behavior vol.12, pp.4, 2017, https://doi.org/10.12989/eas.2017.12.4.449
  4. Direct displacement based design of hybrid passive resistive truss girder frames vol.28, pp.6, 2018, https://doi.org/10.12989/scs.2018.28.6.691
  5. Investigating the effects of span arrangements on DDBD-designed RC buildings under the skew seismic attack vol.77, pp.1, 2021, https://doi.org/10.12989/sem.2021.77.1.115
  6. Applicability of the direct displacement-based design procedure to concentrically braced frames with setbacks vol.6, pp.3, 2021, https://doi.org/10.1080/24705314.2021.1914806
  7. Shake Table Testing of Self‐Centring Concentrically Braced Frames vol.4, pp.2, 2016, https://doi.org/10.1002/cepa.1508