GNGTS 2017 - 36° Convegno Nazionale

GNGTS 2017 S essione 2.2 381 Gruppo di lavoro MS (2008): Indirizzi e criteri per la microzonazione sismica . Conferenza delle Regioni e delle Province Autonome - Dipartimento della Protezione Civile, Roma, 3 vol. e Dvd. Locati M., Camassi R., Rovida A., Ercolani E., Bernardini F., Castelli V., Caracciolo C.H., Tertulliani A., Rossi A., Azzaro R., D’Amico S., Conte S., Rocchetti E. (2016): DBMI15, the 2015 version of the Italian Macroseismic Database . Istituto Nazionale di Geofisica e Vulcanologia. doi :http://doi.org/10.6092/INGV.IT-DBMI15 Martelli L. (coord.), Bonini M., Calabrese L., Corti G., Ercolessi G., Molinari F. C., Piccardi L., Pondrelli S., Sani F., Severi P. (2017): Carta sismotettonica della Regione Emilia-Romagna e aree limitrofe, scala 1:250.000, ed. 2016. Con note illustrative . Regione Emilia-Romagna, SGSS – CNR, IGG sez. FI – Università degli Studi di Firenze, DST – INGV sez. BO. D.R.E.AM . Italia Naso G., Albarello D., Bramerini F., Castenetto S., D’Intinosante V., Moscatelli M. (2016): Zone di amplificazione nelle carte di MS: una proposta di classificazione della pericolosità . Atti del 35° Convegno Nazionale GNGTS, Lecce, 22-24/ 11/2016, sessione 2.2, 381-383. Von Thun J.L., Rochim L.H., Scott G.A., Wilson J.A. (1988): Earthquake ground motion for design and analysis of dams . In Earthquake Engineering and Soil Dynamics II – Recent Advance in Ground-Motion Evaluation, Geotechnical Special Publication 20, ASCE, New York, 463-4. PECULIARITIES OF LOCAL SEISMIC RESPONSE MODELLING FACED DURING THE THIRD LEVEL SEISMIC MICROZONATION STUDIES IN THE MUNICIPALITY OF ACCUMOLI (RIETI, ITALY) S. Martino 1 , M. Cercato 6 , A. Ciancimino 3 , M. Della Seta 1 , G. Di Martino 1 , C. Esposito 1 , S. Foti 3 , L.M. Giannini 1 , S. Hailemikael 2 , L. Lenti 4 , G. Martini 2 , A. Paciello 2 , F. Pallone 1 , F. Passeri 3 , A. Peloso 2 , S. Rivellino 1 , G. Scarascia Mugnozza 1 , L.V. Socco 7 , F. Troiani 1 , C. Varone 5 , V. Verrubbi 2 1 Department of Earth Sciences and Research Centre for Geological Risks (CERI), Sapienza University, Rome, Italy 2 Italian National Agency for New Technologies, Energy and Sustainable Economic Development (ENEA), Casaccia (Rome) and Frascati, Italy 3 Department of Structural, Building and Geotechnical Engineering, Politecnico di Torino, Italy 4 IFSTTAR – Institut Francais des Scences et Technologies des Transports, de l’Aménagement et des réseaux, France 5 École Supérieure d’Ingénieurs des Travaux de la Construction (ESITC) de Paris, Arcueil, France 6 Department of Civil, Building and Environmental Engineering DICEA, Sapienza University, Rome, Italy 7 Department of Environment, Land and Infrastructure Engineering, Politecnico di Torino, Italy The 2016-2017 seismic sequence of central Italy affected a large portion of the north-western Latium territory, with damages to a huge number of people, several road infrastructures and cultural heritage. In order to plan the reconstruction of this wide area, Seismic Microzonation - Level 3 (MS3) studies have been performed following the ICMS, 2008 guidelines. In this work is summarized the experience gained on several sites in the Municipality of Accumoli, focusing on peculiarities of the geological setting, associated to specific solutions requested in the definition of Seismic Microzonation - Level 1 (MS1) zones (MOPS) and to the numerical simulations necessary for the production of MS3 maps. The Municipality of Accumoli lies in the headwater portion of the Tronto River basin, encompassing the mountainous sectors of Mt. Utero, which eastward gradually pass to a slightly gentle hilly-mountain landscape characterizing the basin at the boundary of Amatrice Municipality. The bedrock of the area consists of Meso-Cenozoic limestones and marly-limestones formations outcropping in the mountain zone, whereas at the lowest elevations and moving eastward, the flysch terrains belonging to the Laga Formation crop out. The latter include alternating arenaceous, pelitic-arenaceous and arenaceous-pelitic layers, delineating three different formational members, respectively. In situ and laboratory geotechnical investigations have been integrated to geological reconstructions to provide synthetic cross-sections and to define a complete, well-constrained engineering-geological model. Additionally, this model has been improved by both active (i.e.