Site effects at Euroseistest—II. Results from 2D numerical modeling and comparison with observations |
| |
| Authors: | FJ Chvez-Garc&#x;&#x;a D Raptakis K Makra K Pitilakis |
| |
| Institution: | a Instituto de Ingenier??a, UNAM, Apdo. Postal 70-472, Coyoacán, 04510 Mexico, D.F. Mexico;b Department of Civil Engineering, Aristotle University of Thessaloniki, P.O. Box 450, GR-54006 Thessaloniki, Greece |
| |
| Abstract: | This paper presents results of numerical modeling of site response for Euroseistest. Ground motion across a very detailed model of the subsoil of this valley has been simulated for vertically incident SH waves. The predominance of locally generated surface waves is very clear in the synthetic seismograms. These results are then compared with published studies of observed site effects at this basin and with a detailed analysis of two events in the time domain. It is discussed in which sense it is possible to obtain a good fit between observations and 1D models, even though the real behavior involves locally generated Love waves. For this reason, it can be misleading to rely on an incomplete observation such as empirical transfer functions. Finally, it is stressed that in order to predict ground motion in alluvial valleys the information contained in the phase cannot be neglected. |
| |
| Keywords: | Euroseistest Test site 2D model Finite difference Site response Locally generated surface waves |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
