Evaluation of dynamic performance of a building with passive dampers using subspace identification method

Hiroki Kameda, Ran Kudo, Akira Mita

Research output: Contribution to journalConference article

Abstract

Buildings with passive dampers have become favored in response to the structural damage caused the 1995 Great Hanshin Awaji Earthquake, and the outbreak of numerous design and construction malpractice scandals. However, the real performance of these buildings had not been well understood. The need for more advanced methods for understanding dynamic performance of civil engineering structures has thus become apparent. This study focuses our attention on the dynamic properties represented by modal parameters of a building, a medium-height office building with passive dampers. The passive dampers are sensitive to environments such as the aging, changes in temperature, and the earthquake excitation. We examine such effects by evaluating modal parameters. The MIMO (multi-input and multi-output) subspace identification method was used in this study for estimating modal parameters.

Original languageEnglish
Pages (from-to)235-240
Number of pages6
JournalMaterials Forum
Volume33
Publication statusPublished - 2008 Dec 1
Event2nd Asia-Pacific Workshop on Structural Health Monitoring, 2APWSHM - Melbourne, VIC, Australia
Duration: 2008 Dec 22008 Dec 4

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Keywords

  • Damping ratio
  • Frequency
  • System identification
  • Vibration controlled systems

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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