GNGTS 2019 - Atti del 38° Convegno Nazionale

GNGTS 2019 S essione 2.2 383 associated with the 5 NTC18 soils categories. The agreement is adequate, on average, except for the shallow deposits (class E), for which, however, data are scarce. This proposed method is easy to implement, but it needs rich and qualified dataset; these analyses may be integrated with the results of numerical modelling that allows to investigate a large variety of soil profiles. Further applications will be devoted to test other seismic standards, such as the new EC8 proposal (CEN 2019; EC8draft). EC8draft proposes 6 soils categories, defined based on two parameters: the equivalent shear wave velocity, V S,H , similarly defined according to NTC18, and the depth of bedrock, H800, i.e. the depth of the bedrock formation identified by V S larger than 800 m/s. Furthermore, other flatfiles including records from strong events (e.g. Japanese records) may be analyzed with our procedure in order to investigate the factors introduced in the codes to take into account non-linear effects. References Bindi D., Pacor F., Luzi L., Puglia R., Massa M., Ameri G., and Paolucci R.; 2011: Ground motion prediction equations derived from the Italian strong motion database. Bulletin of Earthquake Engineering, 9 (6), 1899-1920. Bindi D., Massa M., Luzi L., Ameri G., Pacor F., Puglia R., and Augliera P.; 2014: Pan-European ground-motion prediction equations for the average horizontal component of PGA, PGV, and 5%-damped PSA at spectral periods up to 3.0 s using the RESORCE dataset. Bulletin of Earthquake Engineering, 12 (1), 391-430. Cauzzi C., Faccioli E., Vanini M., and Bianchini A.; 2015: Updated predictive equations for broadband (0.01–10 s) horizontal response spectra and peak ground motions, based on a global dataset of digital acceleration records. Bulletin of Earthquake Engineering, 13 (6), 1587-1612. CEN; 2004: EuroCode 8: Design of structures for earthquake resistance - Part 1: general rules, seismic actions and rules for buildings. Brussels: European Committee for Standardization. CEN/TC 250/SC 8 (2019). Eurocode 8: Earthquake resistance design of structures. EN1998-1-1 Working Draft N832 25-08-2019. Dawood H. M., Rodriguez-MarekA., Bayless J., Goulet C. and Thompson E.; 2016: A flatfile for the KiK-net database processed using an automated protocol . Earthquake Spectra, 32 (2), 1281-1302. Lanzano G., D’Amico M., Felicetta C., Luzi L., and Puglia R.; 2017: Update of the single-station sigma analysis for the Italian strong-motion stations. Bulletin of Earthquake Engineering, 15 (6), 2411-2428. Lanzano G., Sgobba S., Luzi L., Puglia R., Pacor F., Felicetta C., D’Amico M., Cotton F. and Bindi D.; 2019: The pan-European engineering strong motion (ESM) flatfile: compilation criteria and data statistics.  Bulletin of Earthquake Engineering, 17 (2), 561-582. Luzi L., Puglia R., Russo E., D’Amico M., Felicetta C., Pacor F., Lanzano G., Çeken U., Clinton J., Costa G., Duni L., Farzanegan E., Gueguen P., Ionescu C., Kalogeras I., Özener H., Pesaresi D., Sleeman R., Strollo A. and Zare M.; 2016: The engineering strong-motion database: A platform to access pan-European accelerometric data. Seismological Research Letters, 87(4), 987-997. NTC2008;2008: Norme Tecniche per le Costruzioni “Decreto Ministeriale 14 Gennaio 2008”. NTC2018; 2018: Norme Tecniche per le Costruzioni “Decreto Ministeriale 17 Gennaio 2018”. Pacor F., Paolucci R., Luzi L., Sabetta F., Spinelli A., Gorini A. and Dolce M.; 2011: Overview of the Italian strong motion database ITACA 1.0. Bulletin of Earthquake Engineering, 9 (6), 1723-1739. Stafford P. J.; 2014: Crossed and nested mixed - effects approaches for enhanced model development and removal of the ergodic assumption in empirical ground - motion models . Bulletin of the Seismological Society of America,  104 (2), 702-719.