Structural Engineering and Mechanics

  • 제24권1호
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  • Pages.63-89
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  • 2006
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

DOI QR Code

Measurement and prediction of geometric imperfections in structural stainless steel members

  • Cruise, R.B. (Department of Civil and Environmental Engineering, Imperial College London, South Kensington Campus) ;
  • Gardner, L. (Department of Civil and Environmental Engineering, Imperial College London, South Kensington Campus)
  • 투고 : 2005.12.20
  • 심사 : 2006.04.24
  • 발행 : 2006.09.10
⟨ 이전 논문 다음 논문 ⟩

초록

Geometric imperfections have an important influence on the buckling response of structural components. This paper describes an experimental technique for determining imperfections in long (5.7 m) structural members using a series of overlapping measurements. Measurements were performed on 31 austenitic stainless steel sections formed from three different production routes: hot-rolling, cold-rolling and press-braking. Spectral analysis was carried out on the imperfections to obtain information on the periodic nature of the profiles. Two series were used to model the profile firstly the orthogonal cosine and sine functions in a classic Fourier transform and secondly a half sine series. Results were compared to the relevant tolerance standards. Simple predictive tools for both local and global imperfections have been developed to enable representative geometric imperfections to be incorporated into numerical models and design methods.

키워드

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피인용 문헌

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  2. Structural performance of YSt–310 cold–formed tubular steel stub columns vol.121, 2017, https://doi.org/10.1016/j.tws.2017.09.022
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  7. Residual stress influence on material properties and column behaviour of stainless steel SHS vol.83, 2014, https://doi.org/10.1016/j.tws.2014.03.013
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  12. Imperfection sensitivity of thin-walled rectangular hollow section struts susceptible to interactive buckling vol.99, 2018, https://doi.org/10.1016/j.ijnonlinmec.2017.11.004
  13. Numerical modelling of yielding shear panel device for passive energy dissipation vol.49, pp.8, 2011, https://doi.org/10.1016/j.tws.2011.03.003
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