GNGTS 2022 - Atti del 40° Convegno Nazionale

314 GNGTS 2022 Sessione 2.2 the spatial correlation of both short- and long-period IMs is well captured, as also supported by independent studies (Infantino et al., 2021). Conclusions. In this contribution we have presented the BB-SPEEDset, a new validated dataset of near-source broadband earthquake ground motions from 3D PBS obtained with the spectral element computer code SPEED. This is expected to provide researchers and practitioners with a large set of accelerograms obtained from the simulation of real or scenario earthquakes, which, due to the realistic geological and seismotectonic characteristics adopted in their simulation, can be used in place of real accelerograms when these are scarcely available, such as in the near field of strong earthquakes (with impulsive features) or in complex geological configurations. We envisage that the BB-SPEEDset, either in the present version, or in the following ones enriched by further simulated scenarios, will serve as the basis for several new achievements for an improved characterization and engineering usage of near-source earthquake ground motions, such as for the development of near-source non-ergodic GMMs, to provide region- and site- specific input motions for non-linear structural analyses of engineered systems, to construct region-specific models for spatial correlation of earthquake ground motion. References Chen Y, Baker J (2019) Spatial correlations in CyberShake physics-based ground-motion simulations Bull Seismol Soc Am 109:2447-2458. Douglas J, Edwards B (2016) Recent and future developments in earthquake ground motion estimation Earth-Sci Rev 160:203-219. Infantino M, Smerzini C, Lin J et al. (2021) Spatial correlation of broadband ground motions from physics-based numerical simulations Earthq Eng Struct Dyn 50:2575-2594. Mazzieri, I, M. Stupazzini, R. Guidotti, and C. Smerzini (2013) SPEED: SPectral Elements in Elastodynamics with Discontinuous Galerkin: a non-conforming approach for 3D multi-scale problems , Int J Numer Meth Eng 95, no. 12, 991–1010. McCallen, D.M., A. Petersson, A. Rodgers, A. Pitarka, M. Miah, F.M. Petrone, B. Sjogreen, N. Abrahamson, H. Tang (2021). EQSIM-A multidisciplinary framework for fault-to-structure earthquake simulations on exascale computers part I: Computational models and workflow. Earthq Spectra 37:707-735. Paolucci, R., I. Mazzieri, and C. Smerzini (2015). Anatomy of strong ground motion: near-source records and 3D physics-based numerical simulations of the Mw 6.0 May 29 2012 Po Plain earthquake , Italy, Geophys. J. Int. 203, 2001–2020. Paolucci, R., F. Gatti, M. Infantino, C. Smerzini, A. G. Özcebe, and M. Stupazzini (2018). Broadband Ground Motions from 3D Physics-Based Numerical Simulations Using Artificial Neural Networks, Bull. Seism. Soc. Am. 108, 1272- 1286. Paolucci, R., I. Mazzieri, G. Piunno, C. Smerzini, M. Vanini, A.G. Özcebe (2021a). Earthquake ground motion modelling of induced seismicity in the Groningen gas field , Earthquake Engineering and Structural Dynamics 50, 135–154, doi: 10.1002/eqe.3367. Paolucci R, Smerzini C, Vanini M (2021b) BB-SPEEDset: A Validated Dataset of Broadband Near-Source Earthquake Ground Motions from 3D Physics-Based Numerical Simulations Bull Seismol Soc Am 111:2527-2545. Paolucci R, Chiecchio A, Vanini M (2022) The older the better? The strange case of empirical ground motion models in the near-source of moderate-to-large magnitude earthquakes Bull Earthq Eng 20:1325-1342. Schiappapietra E, Smerzini C (2021) Spatial correlation of broadband earthquake ground motion in Norcia (Central Italy) from physics-based simulations Bull Earth Eng 19:4693-4717. Sgobba, S., C. Felicetta, G. Lanzano, F. Ramadan, M. D’Amico, and F. Pacor, (2021). NESS2.0: an updated version of the worldwide dataset for calibrating and adjusting ground motion models in near-source , Bull. Seism. Soc. Am, submitted. Shahi, S.K., and J.W. Baker (2014). An Efficient Algorithm to Identify Strong-Velocity Pulses in Multicomponent Ground Motions, Bull. Seism. Soc. Am. 104, no. 5, 2456–2466. doi: 10.1785/0120130191. Smerzini, C., K. Pitilakis, and Hashemi K. (2017). Evaluation of earthquake ground motion and site effects in the Thessaloniki urban area by 3D finite-fault numerical simulations, Bulletin of Earthquake Engineering 15, no. 3, 787–812. Wald DJ, Worden CB, Thompson EM, Hearne M. (2021) ShakeMap operations, policies, and procedures. Earthquake Spectra, doi:10.1177/87552930211030298.