caa a22 4500 445847271 CHVBK 20180317145402.0 cr unu---uuuuu 170323e20111001xx s 000 0 eng 10.1007/s10518-011-9278-y doi (NATIONALLICENCE)springer-10.1007/s10518-011-9278-y Site response studies and seismic microzoning in the Middle Aterno valley (L'aquila, Central Italy) [Elektronische Daten] [G. Lanzo, F. Silvestri, A. Costanzo, A. d'Onofrio, L. Martelli, A. Pagliaroli, S. Sica, A. Simonelli] Following the April 6th, 2009 Abruzzo mainshock, the Italian Civil Protection Department promoted a multidisciplinary study aimed at developing seismic microzonation maps for post-earthquake reconstruction planning. In the framework of this project, a Working Group, including the authors, was assembled to carry out a microzonation study on six villages located in the Middle Aterno valley. This paper focuses on the villages of Castelnuovo and Poggio Picenze, which experienced MCS intensity values of IX-X and VIII-IX, respectively. 1D and 2D linear equivalent site response analyses were carried out on representative geological cross-sections through the damaged centres and the expansion zones. The subsoil models resulting from geological, geotechnical and geophysical investigations were calibrated by comparing numerical amplification functions, in the linear range, with horizontal-to-vertical spectral ratio derived from both aftershocks and noise recordings. The input motions adopted for the analyses were five artificial accelerograms compatible with three response spectra obtained from the Italian seismic code, as well as from ad hoc probabilistic and deterministic studies. The results were expressed in the form of horizontal profiles of amplification factors in terms of peak ground acceleration, FPGA, as well as of the Housner intensity, FH, in two different range of periods; this latter parameter was shown to be almost independent of the input motion and allowed to express the dependency of site amplification on the frequency range. The amplification factors computed along the representative geological sections were finally extended with a rational procedure to the surrounding areas to draw Grade-3 microzonation maps. Springer Science+Business Media B.V., 2011 Aterno River valley nationallicence Soil amplification nationallicence Dynamic properties nationallicence Numerical analyses nationallicence Microzonation maps nationallicence Lanzo G. Dipartimento di Ingegneria Strutturale e Geotecnica, University La Sapienza, Rome, Italy aut Silvestri F. Dipartimento di Ingegneria Idraulica, Geotecnica e Ambientale, University Federico II, Naples, Italy aut Costanzo A. Dipartimento di Difesa del Suolo, University of Calabria, Rende, Italy aut d'Onofrio A. Dipartimento di Ingegneria Idraulica, Geotecnica e Ambientale, University Federico II, Naples, Italy aut Martelli L. Servizio Geologico, Sismico e dei Suoli, Regione Emilia Romagna, Bologna, Italy aut Pagliaroli A. CNR-IGAG, Rome, Italy aut Sica S. Dipartimento di Ingegneria, University of Sannio, Benevento, Italy aut Simonelli A. Dipartimento di Ingegneria, University of Sannio, Benevento, Italy aut Bulletin of Earthquake Engineering Springer Netherlands 9/5(2011-10-01), 1417-1442 1570-761X 9:5<1417 2011 9 10518 https://doi.org/10.1007/s10518-011-9278-y text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10518-011-9278-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Lanzo G. Dipartimento di Ingegneria Strutturale e Geotecnica, University La Sapienza, Rome, Italy aut NATIONALLICENCE 700 1- Silvestri F. Dipartimento di Ingegneria Idraulica, Geotecnica e Ambientale, University Federico II, Naples, Italy aut NATIONALLICENCE 700 1- Costanzo A. Dipartimento di Difesa del Suolo, University of Calabria, Rende, Italy aut NATIONALLICENCE 700 1- d'Onofrio A. Dipartimento di Ingegneria Idraulica, Geotecnica e Ambientale, University Federico II, Naples, Italy aut NATIONALLICENCE 700 1- Martelli L. Servizio Geologico, Sismico e dei Suoli, Regione Emilia Romagna, Bologna, Italy aut NATIONALLICENCE 700 1- Pagliaroli A. CNR-IGAG, Rome, Italy aut NATIONALLICENCE 700 1- Sica S. Dipartimento di Ingegneria, University of Sannio, Benevento, Italy aut NATIONALLICENCE 700 1- Simonelli A. Dipartimento di Ingegneria, University of Sannio, Benevento, Italy aut NATIONALLICENCE 773 0- Bulletin of Earthquake Engineering Springer Netherlands 9/5(2011-10-01), 1417-1442 1570-761X 9:5<1417 2011 9 10518 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer