GNGTS 2023 - Atti del 41° Convegno Nazionale

Session 2.2 GNGTS 2023 parameters of hills, escarpments and ridges according to the requirements defined by Eurocode 8, NTC18 and SMG08. This approach allows a detailed and extensive analysis of the study area thanks to the resolution of the available DEM, and provides all topographic amplification (St) and amplification factor (AF) parameters, according to the requirements of Eurocode 8, NTC18 and SMG08. This allows the extensive and univocal identification (at the scale of tens of meters) of test sites where modeling and seismic data can be planned to confirm the occurrence of the expected amplification phenomena. Further investigations will allow the study of test sites where modeling and seismic data can confirm the occurrence of amplification phenomena and the quality of the proposed methods for extended application to the national territory Cited bibliography Bard P.-Y., Riepl-Thomas J., 1999. Wave propagation in complex geological structures and their effects on strong ground motion. In E. Kausel, G. Manolis (eds.) “Wave motion in earthquake engineering”, WIT Press, Southampton, UK EN 1998-1 Eurocode 8; 2004: Design of structures for earthquake resistance—part 1: general rules, seismic actions and rules for buildings, [Authority: The European Union per regulations 305/2011, Directive 98/34/EC, Directive 2004/18/EC]. Massa M., Barani S., Lovati S., 2014. Overview of topographic effects based on experimental observations: meaning, causes and possible interpretations. Geophys. J. Int., 197, 3, 1537–1550, https://doi.org/10.1093/gji/ggt341 Ministero delle infrastrutture e dei Trasporti; 2018: Norme Tecniche per le Costruzioni (NTC18). Decreto Ministero Infrastrutture. GU Serie Generale n. 42 del 20-02-2018 – Suppl. Ordinario n. 8. Nguyen K-V, Gatmiri B., 2007. Evaluation of seismic ground motion induced by topographic irregularity. Soil Dyn. Earthq.Eng., 27(2):183-188, DOI: 10.1016/j.soildyn.2006.06.005 WGSM (Working Group on Seismic Microzoning), 2008. Guidelines for seismic microzonation. Conferenza delle Regioni e delle Province autonome, Dipartimento della Protezione Civile, Rome, http://www.protezionecivile.gov.it/httpdocs/cms/attach_extra/GuidelinesForSeismicMicrozonatio n.pdf?. Pier Lorenzo Fantozzi – fantozzip@unisi.it