Lateral-torsional buckling of discretely-braced I-girder

Hak Eun Lee, C. T. Nguyen, J. H. Moon, H. S. Joo

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

This paper presents an analytical solution for lateral-torsional buckling strength and stiffness requirements of I-girders with discrete torsional bracings subjected to non-uniform bending. The critical moment and torsional stiffness requirement are derived by using an energy method for an arbitrary number of bracing points. An equivalent moment factor is introduced to evaluate buckling moments of fully braced I-girders. From the results, it is found that proposed solutions agree well with results of finite element analyses regardless of the number of bracing points, while results for the equivalent continuous brace stiffness concept are not suitable for multiple discrete torsionally-braced beams.

Original languageEnglish
Title of host publicationProcedia Engineering
Pages264-271
Number of pages8
Volume14
DOIs
Publication statusPublished - 2011
Event12th East Asia-Pacific Conference on Structural Engineering and Construction, EASEC12 - Hong Kong, Hong Kong
Duration: 2011 Jan 262011 Jan 28

Other

Other12th East Asia-Pacific Conference on Structural Engineering and Construction, EASEC12
CountryHong Kong
CityHong Kong
Period11/1/2611/1/28

Fingerprint

Buckling
Beams and girders
Stiffness

Keywords

  • Energy method
  • Lateral-torsional buckling
  • Stiffness requirement
  • Torsional bracing

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Lee, H. E., Nguyen, C. T., Moon, J. H., & Joo, H. S. (2011). Lateral-torsional buckling of discretely-braced I-girder. In Procedia Engineering (Vol. 14, pp. 264-271) https://doi.org/10.1016/j.proeng.2011.07.032

Lateral-torsional buckling of discretely-braced I-girder. / Lee, Hak Eun; Nguyen, C. T.; Moon, J. H.; Joo, H. S.

Procedia Engineering. Vol. 14 2011. p. 264-271.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Lee, HE, Nguyen, CT, Moon, JH & Joo, HS 2011, Lateral-torsional buckling of discretely-braced I-girder. in Procedia Engineering. vol. 14, pp. 264-271, 12th East Asia-Pacific Conference on Structural Engineering and Construction, EASEC12, Hong Kong, Hong Kong, 11/1/26. https://doi.org/10.1016/j.proeng.2011.07.032
Lee HE, Nguyen CT, Moon JH, Joo HS. Lateral-torsional buckling of discretely-braced I-girder. In Procedia Engineering. Vol. 14. 2011. p. 264-271 https://doi.org/10.1016/j.proeng.2011.07.032
Lee, Hak Eun ; Nguyen, C. T. ; Moon, J. H. ; Joo, H. S. / Lateral-torsional buckling of discretely-braced I-girder. Procedia Engineering. Vol. 14 2011. pp. 264-271
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