Seismic loss estimation of residential wood-frame structures in south-western British Columbia considering mainshock-aftershock sequences

Mohammad Reza Salami, Katsu Goda

Research output: Contribution to journalArticle (Academic Journal)

4 Citations (Scopus)

Abstract

Earthquakes are rare natural catastrophes, causing severe impacts on society due to loss of lives, damage to built facilities, and business interruptions. After a large earthquake (mainshock), many induced events (aftershocks) may be triggered and cause additional damage or even collapse to mainshock-damaged buildings. To reduce seismic hazard and risk of aftershocks and extend the current performance-based earthquake engineering framework, the effects of aftershocks on the seismic performance of structures should be incorporated. Considering an extensive set of real and artificial mainshock-aftershocks sequences, the vulnerability of residential wood-frame houses in southwestern British Columbia, Canada, is examined analytically using incremental dynamic analysis. Subsequently, seismic loss estimation is conducted for four wood-frame house types with different seismic capacities. The analysis results indicate: (1) moderate effects of aftershocks (5–20%) on maximum structural response and damage extent, and (2) significant impact of structural seismic capacity on estimated seismic loss.
Original languageEnglish
Article numberA4014002
Number of pages10
JournalJournal of Performance of Constructed Facilities
DOIs
Publication statusPublished - 15 Nov 2014

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