Publikationsdatum:
2017-04-04
Beschreibung:
In order to empirically evaluate the horizontal-to-vertical (H/V) spectral ratio technique, ambient noise
measurements performed in about two hundred sites mainly in Europe where weak or/and strong motion
data was recorded. Standard Information Sheets (SIS) and earthquake information data were included in
the SESAME [Site EffectS assessment using AMbient Excitations] project database, specially designed to
facilitate data selection. All noise recordings were processed with JSESAME software to calculate (H/V)
spectral ratio, whereas weak and strong motion earthquake recordings were processed with a similarly
standardized procedure. For the latter, (H/V) receiver function for all sites were calculated. Experimental
site transfer functions obtained from earthquake recordings were compared with the (H/V) spectral ratios
from noise recordings in terms of fundamental frequency, amplification bandwidth and amplification
level. Similarities and differences between (H/V) spectral ratio of noise and earthquake recordings are
presented and discussed. In addition, a dense grid of noise measurements were performed within urban
environment of cities affected by strong earthquake (Greece: Thessaloniki, Kalamata, Italy: Palermo). It
seems that the (H/V) spectral ratio may satisfactorily indicate areas favorable to the occurrence of higher
damage in urban environment. However, quantitative correlation between (H/V) spectral ratio properties
and damage distribution (macroseismic intensity, damage grades) in some cases, is difficult to be
established given the complexity of parameters involved.
Beschreibung:
Published
Beschreibung:
Vancouver, B.C., Canada
Beschreibung:
4.1. Metodologie sismologiche per l'ingegneria sismica
Beschreibung:
open
Schlagwort(e):
Sesame project, H/V spectral ratio, empirical evaluation
;
04. Solid Earth::04.06. Seismology::04.06.04. Ground motion
;
04. Solid Earth::04.06. Seismology::04.06.06. Surveys, measurements, and monitoring
;
04. Solid Earth::04.06. Seismology::04.06.09. Waves and wave analysis
;
04. Solid Earth::04.06. Seismology::04.06.11. Seismic risk
Repository-Name:
Istituto Nazionale di Geofisica e Vulcanologia (INGV)
Materialart:
Extended abstract
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