Output only Estimation of Inter-story Drift Angle for Buildings Using Small Number of Accelerometers

Y. Suzuki, A. Mita

Research output: Contribution to journalConference articlepeer-review

2 Citations (Scopus)


The Tohoku earthquake of magnitude 9.0 occurred on March 11, 2011. As a result, the need for Structural Health Monitoring (SHM) was highlighted. To assess the health of buildings, modal parameters such as natural frequencies and damping ratios are the basic and important damage indicators. In addition, maximum inter-story drift angle is also recognized as an important indicator. If we have to estimate these indicators very precisely, we need to install accelerometers on all floors. However, it is not realistic due to the cost. In many methods to estimate the response using small number of accelerometers, the excitation (input) is assumed to be available. However, in some cases, some sensors including the input sensor may not be available. Thus, in this paper, we propose the methods for the estimating inter-story drift angle using small number of accelerometers without knowing input information.

Original languageEnglish
Pages (from-to)263-270
Number of pages8
JournalProcedia Engineering
Publication statusPublished - 2017
Event6th Asia Pacific Workshop on Structural Health Monitoring, APWSHM 2016 - Hobart, Australia
Duration: 2016 Dec 72016 Dec 9


  • SHM
  • inter-story drift angle
  • output only
  • response estimation
  • small number of accelerometers

ASJC Scopus subject areas

  • General Engineering


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