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Elastic lateral-torsional buckling of cellular beams

Delphine Sonck, Wesley Vanlaere UGent and Rudy Van Impe (2010) International symposium 'Steel structures : culture and sustainability 2010', Proceedings. p.573-582
abstract
The use of beams with large circular web openings along the length of the beam has increased steadily during the last decades. However, not all aspects of the design of these cellular beams, such as lateral-torsional buckling (LTB), have been studied extensively. Currently, two design rules exist for calculating the elastic critical LTB buckling moment of these beams. Previous research by the authors, for a limited number of geometries, has shown that the first rule is overly conservative, while the second rule is fairly accurate, but can sometimes be unsafe. In this work, this last rule is examined more deeply by comparing the results with numerical simulations for a wide variety of realistic cellular beam geometries. It will be shown that the second rule is indeed slightly unsafe for some geometries. In reality however, these geometries will fail by plastic yielding rather than elastic instability, greatly reducing the importance of the unsafe deviations of this design rule.
Please use this url to cite or link to this publication:
author
organization
year
type
conference
publication status
published
subject
keyword
numerical simulations, lateral-torsional buckling, cellular beams, Abaqus
in
International symposium 'Steel structures : culture and sustainability 2010', Proceedings
editor
Nesrin Yardimci, A Berna Aydöner, H Yener Gür'es and Cavidan Yorgun
pages
573 - 582
publisher
Turkish Constructional Steelwork Associations (TUCSA)
place of publication
Üsküdar, Istanbul
conference name
Steel Structures : Culture and Sustainability 2010
conference location
Istanbul, Turkey
conference start
2010-09-21
conference end
2010-09-23
ISBN
9789759246129
language
English
UGent publication?
yes
classification
C1
copyright statement
I have transferred the copyright for this publication to the publisher
id
1100500
handle
http://hdl.handle.net/1854/LU-1100500
date created
2011-01-14 11:31:29
date last changed
2017-01-02 09:52:32
@inproceedings{1100500,
  abstract     = {The use of beams with large circular web openings along the length of the beam has increased steadily during the last decades. However, not all aspects of the design of these cellular beams, such as lateral-torsional buckling (LTB), have been studied extensively. Currently, two design rules exist for calculating the elastic critical LTB buckling moment of these beams. Previous research by the authors, for a limited number of geometries, has shown that the first rule is overly conservative, while the second rule is fairly accurate, but can sometimes be unsafe. In this work, this last rule is examined more deeply by comparing the results with numerical simulations for a wide variety of realistic cellular beam geometries. It will be shown that the second rule is indeed slightly unsafe for some geometries. In reality however, these geometries will fail by plastic yielding rather than elastic instability, greatly reducing the importance of the unsafe deviations of this design rule.},
  author       = {Sonck, Delphine and Vanlaere, Wesley and Van Impe, Rudy},
  booktitle    = {International symposium 'Steel structures : culture and sustainability 2010', Proceedings},
  editor       = {Yardimci, Nesrin  and Ayd{\"o}ner, A Berna and G{\"u}r'es, H Yener and Yorgun, Cavidan},
  isbn         = {9789759246129},
  keyword      = {numerical simulations,lateral-torsional buckling,cellular beams,Abaqus},
  language     = {eng},
  location     = {Istanbul, Turkey},
  pages        = {573--582},
  publisher    = {Turkish Constructional Steelwork Associations (TUCSA)},
  title        = {Elastic lateral-torsional buckling of cellular beams},
  year         = {2010},
}

Chicago
Sonck, Delphine, Wesley Vanlaere, and Rudy Van Impe. 2010. “Elastic Lateral-torsional Buckling of Cellular Beams.” In International Symposium “Steel Structures : Culture and Sustainability 2010”, Proceedings, ed. Nesrin Yardimci, A Berna Aydöner, H Yener Gür’es, and Cavidan Yorgun, 573–582. Üsküdar, Istanbul: Turkish Constructional Steelwork Associations (TUCSA).
APA
Sonck, D., Vanlaere, W., & Van Impe, R. (2010). Elastic lateral-torsional buckling of cellular beams. In N. Yardimci, A. B. Aydöner, H. Y. Gür’es, & C. Yorgun (Eds.), International symposium “Steel structures : culture and sustainability 2010”, Proceedings (pp. 573–582). Presented at the Steel Structures : Culture and Sustainability 2010, Üsküdar, Istanbul: Turkish Constructional Steelwork Associations (TUCSA).
Vancouver
1.
Sonck D, Vanlaere W, Van Impe R. Elastic lateral-torsional buckling of cellular beams. In: Yardimci N, Aydöner AB, Gür’es HY, Yorgun C, editors. International symposium “Steel structures : culture and sustainability 2010”, Proceedings. Üsküdar, Istanbul: Turkish Constructional Steelwork Associations (TUCSA); 2010. p. 573–82.
MLA
Sonck, Delphine, Wesley Vanlaere, and Rudy Van Impe. “Elastic Lateral-torsional Buckling of Cellular Beams.” International Symposium “Steel Structures : Culture and Sustainability 2010”, Proceedings. Ed. Nesrin Yardimci et al. Üsküdar, Istanbul: Turkish Constructional Steelwork Associations (TUCSA), 2010. 573–582. Print.