Structural Engineering and Mechanics

  • 제48권3호
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  • Pages.383-394
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  • 2013
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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

Cold-formed steel channel columns optimization with simulated annealing method

  • 투고 : 2012.04.23
  • 심사 : 2013.10.26
  • 발행 : 2013.11.10
⟨ 이전 논문 다음 논문 ⟩

초록

Cold-formed profiles have been largely used in the building industry because they can be easily produced and because they allow for a wide range of sections and thus can be utilized to meet different project requirements. Attainment of maximum performance by structural elements with low use of material is a challenge for engineering projects. This paper presents a numerical study aimed at minimizing the weight of lipped and unlipped cold-formed channel columns, following the AISI 2007 specification. Flexural, torsional and torsional-flexural buckling of columns was considered as constraints. The simulated annealing method was used for optimization. Several numerical simulations are presented and discussed to validate the proposal, in addition to an experimental example that qualifies its implementation. The ratios between lips, web width, and flange width are analyzed. Finally, it may be concluded that the optimization process yields excellent results in terms of cross-sectional area reduction.

키워드

참고문헌

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피인용 문헌

  1. Local buckling behaviour of thin-walled members with curved cross-section parts vol.115, 2017, https://doi.org/10.1016/j.tws.2017.02.026
  2. Shape optimization of cold-formed steel columns with fabrication and geometric end-use constraints vol.85, 2014, https://doi.org/10.1016/j.tws.2014.08.014
  3. Use of optimization for automatic grouping of beam cross-section dimensions in reinforced concrete building structures vol.99, 2015, https://doi.org/10.1016/j.engstruct.2015.05.001
  4. Two-level optimization for a new family of cold-formed steel lipped channel sections against local and distortional buckling vol.108, 2016, https://doi.org/10.1016/j.tws.2016.07.004
  5. Simultaneous geometry and cross-section optimization of aluminum trusses vol.12, pp.2, 2016, https://doi.org/10.1108/MMMS-06-2015-0032
  6. Robust optimization of reinforced concrete folded plate and shell roof structure incorporating parameter uncertainty vol.56, pp.5, 2015, https://doi.org/10.12989/sem.2015.56.5.707
  7. Nonlinear finite element modeling of steel-sheathed cold-formed steel shear walls vol.22, pp.1, 2016, https://doi.org/10.12989/scs.2016.22.1.079
  8. Optimal dimensioning for the corner combined footings vol.2, pp.2, 2013, https://doi.org/10.12989/acd.2017.2.2.169
  9. Modeling for the strap combined footings Part I: Optimal dimensioning vol.30, pp.2, 2013, https://doi.org/10.12989/scs.2019.30.2.097
  10. Study on axial compressive behavior of quadruple C-channel built-up cold-formed steel columns vol.70, pp.4, 2013, https://doi.org/10.12989/sem.2019.70.4.499
  11. Behavior of CFS built-up battened columns: Parametric study and design recommendations vol.74, pp.3, 2013, https://doi.org/10.12989/sem.2020.74.3.381
  12. Parametric study and Improved design guidelines of CFS battened built-up columns vol.40, pp.5, 2013, https://doi.org/10.12989/scs.2021.40.5.733