Shake Maps of Strength and Displacement Demands for Romanian Vrancea Earthquakes

Abstract eng:
The paper presents results from an extensive study, involving the mapping of key ground motion parameters and of linear/nonlinear spectral ordinates for all strong Vrancea earthquakes which occurred in Romania in the last three decades. The study is intended to provide a comprehensive image on the spatial distribution of the considered parameters, based on available ground motions records from the 1986 (Mw=7.2), 1990 (Mw = 7.0) and 2004 (Mw = 6.0) earthquakes. The paper focuses on the analysis of the spatial distribution of strength and displacement demands for the analyzed earthquakes, based on linear/nonlinear spectral ordinates for acceleration and displacement. By corroboration with data from previous research carried out by the authors, the study reveals interesting conclusions for structural design.

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