Plastic deformation capacity of h-shaped beams collapse with combined buckling under reversed axial forces

Atsushi Suzuki, Yoshihiro Kimura, Kazuhiko Kasai

Research output: Contribution to journalArticlepeer-review

Abstract

H-shaped beam installed in a braced structure are subjected to reversed axial force during the earthquake. In the previous paper, the evaluation index and formulae for beams collapse with dominant local buckling are reported. In this paper, additional experiments and numerical analyses are carried out to clarify the influences of combined (local and lateral) buckling for the ultimate strength, plastic deformation capacity, and cumulative plastic deformation capacity. Based on the obtained results, the new evaluation index and formulae are proposed here. Finally the applicability of the previous equation of Bauschinger effect coefficient is investigated to calculate the hysteresic energy absorption.

Original languageEnglish
Pages (from-to)297-307
Number of pages11
JournalJournal of Structural and Construction Engineering
Volume83
Issue number744
DOIs
Publication statusPublished - 2018 Feb

Keywords

  • Combined buckling
  • Cumulative plastic deformation capacity
  • H-shaped beam
  • Plastic deformation capacity
  • Reversed axial force
  • Ultimate strength

ASJC Scopus subject areas

  • Architecture
  • Building and Construction

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