Effect of openings through sheath on shear behaviors of beam-column joint in post-tensioned precast frame

Kaito Yamashita, Yasuji Shinohara, Shinji Kishida

Research output: Contribution to journalArticle

Abstract

3-D finite element analyses were conducted on post-tensioned precast concrete frames to investigate the shear behaviors of beam-column joints having some openings through sheaths. The compressive damage and confining effect in the beam-column joints were numerically estimated based on the 3-D stress state. Analytical results indicated that the shear strength of the beam-column joint decreased considerably with increasing opening ratio without beams installed orthogonally. If, however, the orthogonal beams were installed, the shear strength of the beam-column joint increased by 20 % and the decrease in shear strength due to opening was softened because a high confining pressure was generated.

Original languageEnglish
Pages (from-to)1449-1459
Number of pages11
JournalJournal of Structural and Construction Engineering
Volume82
Issue number739
DOIs
Publication statusPublished - 2017 Sep 1

Keywords

  • Beam-column joint
  • Confining effect
  • Degree of damage
  • Opening
  • Post-tensioned precast
  • Shear behaviors

ASJC Scopus subject areas

  • Architecture
  • Building and Construction

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