NDLI: How could cumulative damage affect the macroseismic assessment?

Content Provider	Springer Nature Link
Author	Grimaz, Stefa Malisan, Petra
Copyright Year	2016
Abstract	When strong earthquakes occur, buildings are usually affected by multiple, consecutive seismic shakings causing a progression of the damage. This paper presents a comprehensive discussion on how the cumulative damage caused by multiple shocks could influence the assignment of macroseismic intensity. The potential consequences in case of single or multiple shocks are investigated through a large set of simulations, applying a simplified non-linear structural model on a stock of masonry buildings taken from real cases. The results allow an estimation of the changes in vulnerability, with reference to the European Macroseismic Scale classification, for the buildings that suffered a specific damage in a prior shock. Simulations reckon a significant difference in the macroseismic intensity assignments, especially when the same damage is associated to single or multiple seismic shocks. We highlight the potential bias due to the cumulative damage on the correlation between macroseismic intensity and ground motion parameters, and we formulate a proposal for testing on the field, in the case of future earthquakes, what has been here investigated through a simplified simulation.
Starting Page	2465
Ending Page	2481
Page Count	17
File Format	PDF
ISSN	1570761X
Journal	Bulletin of Earthquake Engineering
Volume Number	15
Issue Number	6
e-ISSN	15731456
Language	English
Publisher	Springer Netherlands
Publisher Date	2016-10-04
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Cumulative damage Macroseismic intensity EMS98 Multiple seismic shocks Seismic ground motion Geotechnical Engineering & Applied Earth Sciences Environmental Engineering/Biotechnology Civil Engineering Geophysics/Geodesy Hydrogeology Structural Geology
Content Type	Text
Resource Type	Article
Subject	Building and Construction Geophysics Geotechnical Engineering and Engineering Geology Civil and Structural Engineering

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