Torsional irregularity in multi-story structures

Günay Özmen, Konuralp Girgin*, Yavuz Durgun

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

47 Citations (Scopus)

Abstract

The purpose of this study is first to determine the conditions for excessive torsional irregularity and then to discuss the validity of code provisions. A parametric investigation is performed on six groups of typical structures with varying shear wall positions, story, and axis numbers. It is found that torsional irregularity coefficients increase as the story numbers decrease, i.e., maximum irregularity coefficients occur for single-story structures. They reach maximum values when the asymmetrical shear walls are placed as close as possible to the centers of mass. However, the results obtained for floor rotations are quite contradictory. A new provisional definition for torsional irregularity coefficient based on floor rotations is proposed.

Original languageEnglish
Pages (from-to)121-131
Number of pages11
JournalInternational Journal of Advanced Structural Engineering
Volume6
Issue number4
DOIs
Publication statusPublished - 1 Dec 2014

Bibliographical note

Publisher Copyright:
© 2014, The Author(s).

Keywords

  • Earthquake regulations
  • Floor rotations
  • Parametric investigation
  • Torsional irregularity

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