Effect of lateral-rotational restraint of continuous braces on lateral buckling strength for H-shaped beams with flexural moment gradient

Yoshihiro Kimura, Yuki Yoshino

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

Our previous research clarified the relation between the lateral buckling strength of H-shaped beams and the demands of the lateral and rotational rigidity for continuous braces when a beam is subjected to uniform moment. To consider more realistic conditions, Ulis paper takes the effect of moment gradient along beams into account on the elastic lateral buckling strength of H-shaped beams with continuous braces. In Ulis paper, the elastic buckling strength of the beams under moment gradient is estimated by formulating energy conservation equations, which are verified by eigenvalue analysis. Finally, the elasto-plastic lateral buckling moment of the beams is evaluated using the modified slenderness ratio with the elastic lateral buckling strength.

Original languageEnglish
Pages (from-to)1309-1319
Number of pages11
JournalJournal of Structural and Construction Engineering
Volume81
Issue number726
DOIs
Publication statusPublished - 2016 Aug

Keywords

  • Continuous braces
  • Elasto-plastic lateral buckling moment
  • Flexural moment gradient
  • H-Shaped beams
  • Required rigidity

ASJC Scopus subject areas

  • Architecture
  • Building and Construction

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