Elastic buckling of I-beams under linear moment gradient

Nam Hyoung Lim, Nam H. Park, Young Jong Kang, Ik Hyun Sung

Research output: Contribution to journalArticle

30 Citations (Scopus)

Abstract

This paper investigates the elastic lateral-torsional buckling of I-beams under linear moment gradient that very precisely incorporates the effects of moment gradient and various end restraints. The elastic critical buckling moments are obtained independently by using: (1) the Bubnov-Galerkin method and (2) the finite element method. The present formula of the moment gradient correction factor cannot satisfactorily predict the buckling capacities of doubly symmetric and monosymmetric I-beams with various end restraints. We propose alternative equations for evaluating the moment gradient correction factor, considering end restraint conditions.

Original languageEnglish
Pages (from-to)5635-5647
Number of pages13
JournalInternational Journal of Solids and Structures
Volume40
Issue number21
DOIs
Publication statusPublished - 2003 Oct 1

Fingerprint

I beams
elastic buckling
Buckling
Gradient
Moment
moments
gradients
buckling
Galerkin methods
End Conditions
Galerkin method
Finite element method
Galerkin Method
Lateral
finite element method
Finite Element Method
Predict
Alternatives

Keywords

  • Elastic lateral-torsional buckling
  • End restraints
  • Moment gradient correction factor

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials

Cite this

Elastic buckling of I-beams under linear moment gradient. / Lim, Nam Hyoung; Park, Nam H.; Kang, Young Jong; Sung, Ik Hyun.

In: International Journal of Solids and Structures, Vol. 40, No. 21, 01.10.2003, p. 5635-5647.

Research output: Contribution to journalArticle

Lim, Nam Hyoung ; Park, Nam H. ; Kang, Young Jong ; Sung, Ik Hyun. / Elastic buckling of I-beams under linear moment gradient. In: International Journal of Solids and Structures. 2003 ; Vol. 40, No. 21. pp. 5635-5647.
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