caa a22 4500 445846615 CHVBK 20180317145400.0 cr unu---uuuuu 170323e20110201xx s 000 0 eng 10.1007/s10518-010-9227-1 doi (NATIONALLICENCE)springer-10.1007/s10518-010-9227-1 Peak and integral seismic parameters of L'Aquila 2009 ground motions: observed versus code provision values [Elektronische Daten] [A. Masi, L. Chiauzzi, F. Braga, M. Mucciarelli, M. Vona, R. Ditommaso] The M w 6.3 L'Aquila earthquake of April 6, 2009 hit a wide area of the Abruzzo region (Central Italy). The epicentre of the main shock was very close to the urban centre of L'Aquila, the regional capital, with an epicentral distance less than 10km. It was the strongest earthquake ever recorded in Italy which has provided ground motion recordings from accelerometric stations located in close proximity to the epicentre. Because of this, several remarkable results can be achieved by analysing the strong motion recorded signals in terms of peak (PGA, PGV and PGD) and integral (Housner Intensity, I H) seismic parameters. Additionally, an alternative time-domain representation of recorded signals has been used to furnish a rapid comparison of traces recorded at different stations and along different directions. Some comparisons between the response spectra derived from the recordings and the elastic demand spectra provided in the new seismic Italian code have also been performed. PGA recorded values are very high and generally higher than code values for seismic actions with return period T R=475 years. In some cases, this also happens for seismic actions with T R up to 2,475years. With regard to I H, recorded values are generally higher for T R=475 years, whilst they are remarkably lower for T R= 2,475years. Accurate analyses have been carried out in the article to better understand the above differences and their significance and implications. Springer Science+Business Media B.V., 2010 Seismic parameters nationallicence L'Aquila earthquake nationallicence Strong motion nationallicence Action design nationallicence Housner Intensity nationallicence Masi A. DiSGG, Università della Basilicata, Potenza, Italy aut Chiauzzi L. DiSGG, Università della Basilicata, Potenza, Italy aut Braga F. DiSG, Università La Sapienza, Rome, Italy aut Mucciarelli M. DiSGG, Università della Basilicata, Potenza, Italy aut Vona M. DiSGG, Università della Basilicata, Potenza, Italy aut Ditommaso R. DiSGG, Università della Basilicata, Potenza, Italy aut Bulletin of Earthquake Engineering Springer Netherlands 9/1(2011-02-01), 139-156 1570-761X 9:1<139 2011 9 10518 https://doi.org/10.1007/s10518-010-9227-1 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10518-010-9227-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Masi A. DiSGG, Università della Basilicata, Potenza, Italy aut NATIONALLICENCE 700 1- Chiauzzi L. DiSGG, Università della Basilicata, Potenza, Italy aut NATIONALLICENCE 700 1- Braga F. DiSG, Università La Sapienza, Rome, Italy aut NATIONALLICENCE 700 1- Mucciarelli M. DiSGG, Università della Basilicata, Potenza, Italy aut NATIONALLICENCE 700 1- Vona M. DiSGG, Università della Basilicata, Potenza, Italy aut NATIONALLICENCE 700 1- Ditommaso R. DiSGG, Università della Basilicata, Potenza, Italy aut NATIONALLICENCE 773 0- Bulletin of Earthquake Engineering Springer Netherlands 9/1(2011-02-01), 139-156 1570-761X 9:1<139 2011 9 10518 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer