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Stochastic ground motion simulation with geological site effects in damage asessment
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Orientador(es)
Resumo(s)
Damage assessment of structures with a mechanical non linear model demands the representation of seismic
action in terms of an accelerogram (dynamic analysis) or a response spectrum (pushover analysis). Stochastic
ground motion simulation is largely used in regions where seismic strong-motion records are available in
insufficient number. In this work we present a variation of the stochastic finite-fault method with dynamic corner
frequency that includes the geological site effects. The method was implemented in a computer program named
SIMULSIS that generate time series (accelerograms) and response spectra. The program was tested with the
MW= 7.3 Landers earthquake (June 28, 1992) and managed to reproduce its effects. In the present work we used
it to reproduce the effects of the 1980’s Azores earthquake (January 1, 1980) in several islands, with different
possible local site conditions. In those places, the response spectra are presented and compared with the
buildings damage observed.
Descrição
Palavras-chave
Sismologia Engenharia sísmica 624.042.7
Contexto Educativo
Citação
International Seminar on Seismic Risk and Rehabilitation of Stone Masonry Housing. - Horta, Faial, 1998. - p. 1-14
Editora
Horta, Faial