caa a22 4500 445846666 CHVBK 20180317145401.0 cr unu---uuuuu 170323e20110201xx s 000 0 eng 10.1007/s10518-010-9239-x doi (NATIONALLICENCE)springer-10.1007/s10518-010-9239-x Recorded ground motion and site effects evaluation for the April 6, 2009 L'Aquila earthquake [Elektronische Daten] [M. Maugeri, A. Simonelli, A. Ferraro, S. Grasso, A. Penna] On April 6, 2009 a ML = 5.8 earthquake hit the city of L'Aquila on the Apennine chain in central Italy. Notwithstanding the moderate-size event the L'Aquila city and several small villages along the Aterno river valley suffered severe damage, because of the unusual strong motions, mainly due to proximity to the fault (estimated hypocentral depth of about 10 km). In this paper the main features of the recorded motion are discussed. Four accelerometric stations were located within the surface projection of the fault and recorded peak values ranging from 0.4 to 0.6 g. The recorded motions were characterised by short durations and high peak accelerations both in the horizontal and vertical directions. The strong portions of vertical and horizontal motions occurred almost simultaneously due to the short travel paths of P and S waves from the fault to the ground surface near the fault area. Hence site response analyses were performed for the sites where recording stations were located. The geotechnical subsoil model was derived by boreholes, in situ dynamic tests (D-H and SDMT) and by laboratory tests (RCT). One-dimensional numerical analyses were carried out employing the well known computer code EERA. The numerical model was calibrated, in the linear equivalent range, by comparing numerical results with the horizontal acceleration recorded components. Springer Science+Business Media B.V., 2011 L'Aquila earthquake nationallicence Seismic action nationallicence Site response analysis nationallicence Soil non linearity nationallicence Seismic code nationallicence Maugeri M. Department of Civil and Environmental Engineering, University of Catania, Catania, Italy aut Simonelli A. Department of Engineering, University of Sannio, Benevento, Italy aut Ferraro A. Department of Civil and Environmental Engineering, University of Catania, Catania, Italy aut Grasso S. Department of Civil and Environmental Engineering, University of Catania, Catania, Italy aut Penna A. Department of Engineering, University of Sannio, Benevento, Italy aut Bulletin of Earthquake Engineering Springer Netherlands 9/1(2011-02-01), 157-179 1570-761X 9:1<157 2011 9 10518 https://doi.org/10.1007/s10518-010-9239-x text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10518-010-9239-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Maugeri M. Department of Civil and Environmental Engineering, University of Catania, Catania, Italy aut NATIONALLICENCE 700 1- Simonelli A. Department of Engineering, University of Sannio, Benevento, Italy aut NATIONALLICENCE 700 1- Ferraro A. Department of Civil and Environmental Engineering, University of Catania, Catania, Italy aut NATIONALLICENCE 700 1- Grasso S. Department of Civil and Environmental Engineering, University of Catania, Catania, Italy aut NATIONALLICENCE 700 1- Penna A. Department of Engineering, University of Sannio, Benevento, Italy aut NATIONALLICENCE 773 0- Bulletin of Earthquake Engineering Springer Netherlands 9/1(2011-02-01), 157-179 1570-761X 9:1<157 2011 9 10518 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer