Higher mode seismic structure-soil-structure interaction between adjacent building during earthquakes

Felipe Vicencio*, Nicholas A. Alexander

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

20 Citations (Scopus)
199 Downloads (Pure)


This paper evaluates the effect of Structure-Soil-Structure Interaction (SSSI) between two buildings under seismic excitation given different parameters of the buildings, inter-building spacing, and soil type. An extended simplified reduced-order model, that enables higher mode interaction between structures, is proposed. This enables the exploration of the interaction between buildings with a very large difference in height. A database of strong ground motions records with Far-Field, Near-Field Without Pulse and Near-Field Pulse-Like characteristics are employed. Over 3 million system/ground motion cases are analysed in this extensive parametric study. The results suggest that the extended model captures significant interactions, in displacement responses, for the cases of a small building closely flanked by a much taller one.

Original languageEnglish
Pages (from-to)322-337
Number of pages16
JournalEngineering Structures
Early online date28 Jul 2018
Publication statusPublished - 1 Nov 2018


  • Dynamics
  • Structure-Soil-Structure interaction (SSSI)
  • Time history seismic analysis


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