Influence of P-delta effect on dynamic response of high-rise moment-resisting steel buildings subject to extreme earthquake ground motions

Moonjeong Kim, Yoshikazu Araki, Makoto Yamakawa, Hiroshi Tagawa, Kohju Ikago

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

We study the influence of the P-Δ effect on the dynamic response of 20 story moment-resisting steel frames under extreme earthquake ground motions. In this paper, we perform nonlinear time-history analyses of 3 frame models having different design base shear. The major findings include: (a) If the design base shear was close to the lower bound of existing buildings, deformation in lower stories accumulated in one direction under a synthetic long-period earthquake ground motion. This led to significant residual story drift, (b) The deformation accumulation was suppressed by increasing the post-yield stiffness, (c) The deformation accumulation occurred even if the columns are all elastic except the base of the 1st story.

Original languageEnglish
Pages (from-to)1861-1868
Number of pages8
JournalJournal of Structural and Construction Engineering
Volume74
Issue number644
DOIs
Publication statusPublished - 2009 Oct 1

Keywords

  • High-rise steel building
  • Long-period earthquake ground motion
  • Moment resisting frame
  • Nonlinear time history analysis
  • P-δ effect

ASJC Scopus subject areas

  • Architecture
  • Building and Construction

Fingerprint Dive into the research topics of 'Influence of P-delta effect on dynamic response of high-rise moment-resisting steel buildings subject to extreme earthquake ground motions'. Together they form a unique fingerprint.

  • Cite this