THE SPATIAL VARIATION OF SEISMIC GROUND MOTIONS UNDER THE MAGNIFYING GLASS OF THE COHERENCY FUNCTION REGARDING THE SMART-1 ARRAY LOCATED IN LOTUNG, TAIWAN

The presented topic contains the calculation procedures and the signals processing concepts used in the studies conducted in the presented report. The spatial variation of seismic ground motions is a phenomenon which regards the modification in terms of the frequency content and phase offset. This p...

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Bibliographic Details
Published inModelling in Civil Environmental Engineering (Online) no. 2; pp. 65 - 77
Main Author Diaconu, Adrian-Aurelian
Format Journal Article
LanguageEnglish
Published Bucharest Technical University of Civil Engineering from Bucharest 01.01.2023
Subjects
Civil engineering
Earthquakes
Fourier transforms
Ground motion
Incoherence
Mathematical functions
Nuclear power plants
Random variables
Sensors
Soil layers
Stochastic models
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Summary:The presented topic contains the calculation procedures and the signals processing concepts used in the studies conducted in the presented report. The spatial variation of seismic ground motions is a phenomenon which regards the modification in terms of the frequency content and phase offset. This phenomenon assumes that the waves pass through soil strata that modify the arrival time of the waves. This idea is called wave passage effect. The incoherence of the waves is caused by the fact that when the waves pass through the soil, they encounter objects which determine them to reflect or refract from the main direction of propagation.
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ISSN:2784-1391
DOI:10.2478/mmce-2023-0006