Constraining paleo PGA values by numerical analysis of overturned columns

Gony Yagoda-Biran, Yossef H. Hatzor

Research output: Contribution to journalArticlepeer-review

47 Scopus citations

Abstract

The estimated peak ground acceleration (PGA) for a specific region cannot always be determined reliably from compilation and statistical analyses of instrumental data acquired because of the relatively short time window available for such an approach, typically up to 100 years of instrumentation. We propose a complimentary approach for estimating PGA in a specific region, through back analysis of seismically driven column collapse in historic monuments, using the numerical discrete element discontinuous deformation analysis (DDA) method. Preliminary threshold 'paleo PGA' values thus obtained constrain the lower bound of PGA estimates using information from a much broader time window, in the case study presented here of approximately 1200 years.

Original languageEnglish
Pages (from-to)463-472
Number of pages10
JournalEarthquake Engineering and Structural Dynamics
Volume39
Issue number4
DOIs
StatePublished - 1 Jan 2010

Keywords

  • DDA
  • Discrete element methods
  • Historical monuments
  • Numerical analysis
  • PGA
  • Paleo-seismicity

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