Numerical analysis focusing on stiffness deterioration behavior of composite beam subjected to cyclic deformations

Yusuke Nonoyama, Takuya Nagae, Taichiro Okazaki, Tomohiro Matsumiya, Noriyuki Takahashi, Koichi Kajiwara, Hiroshi Nakazawa, Tadashi Mikoshiba

Research output: Contribution to journalArticlepeer-review

Abstract

This research focuses on deterioration behaviors of the unloading stiffness obtained from loading tests of beam-to-column joints of composite beams and steel beams, and discusses the applicability of numerical analyses. The Ibarra-Medina-Krawinkler model expresses degradations of the stiffness and load capacity based on the hysteresis energy. By giving appropriate parameters, a stiffness deterioration behavior at the positive bending of the experiment was efficiently represented. The difference in hysteresis energy due to the presence or absence of stiffness deterioration reached about 20 % when the value positive bending stiffness dropped to about 80 %.

Original languageEnglish
Pages (from-to)153-158
Number of pages6
JournalAIJ Journal of Technology and Design
Volume26
Issue number62
DOIs
Publication statusPublished - 2020 Feb

Keywords

  • Beam-to-column connections
  • Floor slab
  • Ibarra medina krawinkler deterioration model
  • Steel structure
  • Stiffness deterioration

ASJC Scopus subject areas

  • Architecture
  • Building and Construction

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