A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Spatial coherency analysis of seismic ground motions from a rock site dense array implemented during the Kefalonia 2014 aftershock sequence
The objective of studies presented in this paper is to analyse the spatial incoherency of seismic ground motions using signals from a velocimeter dense array located on a rock site, recording the aftershock sequence of the two M6 Kefalonia earthquakes that occurred in January/February 2014 (Kefalonia island, Greece). The analyses are carried out with both horizontal and vertical components of velocigrams for small separation distances of stations (<100 m). The coherencies of seismic ground motions identified from strong motion windows are compared with those identified from coda parts of signals. It is realized that there is no significant difference between the coherencies estimated from those two parts of signals. The influence of earthquake event number on the result of coherencies and the dispersions of coherencies estimated from different earthquake events are presented. Finally, coherencies estimated from the dense array are compared with several coherency models proposed and widely used in the literature. The possibility of modifying some parameters of those existing coherency models to fit with in situ coherencies are discussed and presented. Copyright © 2017 John Wiley & Sons, Ltd.
Spatial coherency analysis of seismic ground motions from a rock site dense array implemented during the Kefalonia 2014 aftershock sequence
The objective of studies presented in this paper is to analyse the spatial incoherency of seismic ground motions using signals from a velocimeter dense array located on a rock site, recording the aftershock sequence of the two M6 Kefalonia earthquakes that occurred in January/February 2014 (Kefalonia island, Greece). The analyses are carried out with both horizontal and vertical components of velocigrams for small separation distances of stations (<100 m). The coherencies of seismic ground motions identified from strong motion windows are compared with those identified from coda parts of signals. It is realized that there is no significant difference between the coherencies estimated from those two parts of signals. The influence of earthquake event number on the result of coherencies and the dispersions of coherencies estimated from different earthquake events are presented. Finally, coherencies estimated from the dense array are compared with several coherency models proposed and widely used in the literature. The possibility of modifying some parameters of those existing coherency models to fit with in situ coherencies are discussed and presented. Copyright © 2017 John Wiley & Sons, Ltd.
Spatial coherency analysis of seismic ground motions from a rock site dense array implemented during the Kefalonia 2014 aftershock sequence
Svay, A. (author) / Perron, V. (author) / Imtiaz, A. (author) / Zentner, I. (author) / Cottereau, R. (author) / Clouteau1, D. (author) / Bard, P.‐Y. (author) / Hollender, F. (author) / Lopez‐Caballero, F. (author)
Earthquake Engineering & Structural Dynamics ; 46 ; 1895-1917
2017-10-10
23 pages
Article (Journal)
Electronic Resource
English
Spatial coherency analysis of seismic motions from a hard rock site dense array in Busan, Korea
| Springer Verlag | 2024
Damage spectra for the mainshock–aftershock sequence-type ground motions
| Elsevier | 2012
Damage spectra for the mainshock–aftershock sequence-type ground motions
| Online Contents | 2013
Damage spectra for the mainshock-aftershock sequence-type ground motions
| British Library Online Contents | 2013
Assessment of Spatial Coherency Using Tri-directional Ground Motions
| Taylor & Francis Verlag | 2016