Vulnerability functions for wooden buildings using a probability distribution model of seismic performance

Masayuki Kohiyama, Masashi Shiomi

Research output: Contribution to journalArticle


Vulnerability functions for wooden buildings are proposed, which employ a probability distribution model of seismic performance. An acceleration response spectrum is used as input to the functions. The probability distribution model is formulated based on two indices of seismic diagnosis data: stifthess and resistance force, and it is clarified that the bivariate normal distribution is a reliable model. Regarding estimation accuracy, the proposed functions are compared with experience-based vulnerability functions in past literature for three earthquake disasters. The proposed functions indicate fairly good accuracy when proper parameters of stiffness increase and resistance force increase due to non-structural walls are used.

Original languageEnglish
Pages (from-to)1029-1036
Number of pages8
JournalJournal of Structural and Construction Engineering
Issue number640
Publication statusPublished - 2009 Jun 1



  • Acceleration response spectrum
  • Seismic diagnosis
  • Vulnerability function
  • Wooden buildings

ASJC Scopus subject areas

  • Architecture
  • Building and Construction

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