1. Αποθετήριο Παραδοτέων Υποτρόφων Δράσεων ΕΣΠΑ Τριτοβάθμιας Εκπαίδευσης 2017-2023
2. Όλο το Αποθετήριο
3. Μεταδιδακτορικοί ερευνητές

Τύπος:	Πρακτικά συνεδρίου
Τίτλος:	How much may the precision of site conditions modelling affect seismic risk assessment at large urban scale? The case of Thessaloniki, Greece.
Συγγραφέας:	[EL] Ρήγα, Ευλαμπία-Ευτέρπη[EN] Riga, Evlampia-Efterpi [EL] Καρατζέτζου, Άννα[EN] Karatzetzou, Anna [EL] Αποστολάκη, Στεφανία[EN] Apostolaki, Stefania [EL] Αναστασιάδης, Αναστάσιος[EN] Anastasiadis, Anastasios [EL] Πιτιλάκης, Κυριαζής[EN] Pitilakis, Kyriazis [EL] Λοντζετίδης Κωνσταντίνος[EN] Lontzetidis, Kostas
Ημερομηνία:	25/03/2021
Περίληψη:	The accurate knowledge of the geological, geotechnical, geophysical and geometrical characteristics of soil conditions at urban area, usually obtained through microzonation studies, is generally important to the seismic hazard and risk assessment, and consequently for decision-making with respect to the reduction of earthquake-induced losses and insurances. However, the level of precision of the knowledge of soil conditions required for seismic risk assessment at urban scale, usually described with a single parameter (e.g. Vs,30) is still debated. The aim of the present study is to investigate whether a very detailed knowledge of site conditions in terms of Vs,30 may affect the seismic risk assessment compared to more simplified approaches, using as case study the city of Thessaloniki, Greece where we have a very good knowledge of the soil conditions. For this purpose, the European seismic risk model recently developed in the framework of the H2020 EU SERA project was applied to the residential building stock of Thessaloniki, Greece. We used different Vs,30 models of increasing accuracy, including a simplified one obtained via correlation to topographic slope and a rigorous one, obtained from measured Vs profiles. For the risk assessment we applied the taxonomy scheme and vulnerability models developed by the Global Earthquake Model. The results are presented in terms of average annual losses. For the specific case study and seismic hazard model, the estimated economic losses at urban scale are not significantly affected by the precision of Vs,30 model, although significant discrepancies may occur at local scale.
Γλώσσα:	Αγγλικά
Τόπος δημοσίευσης:	Dunedin, New Zealand
Σελίδες:	10
Θεματική κατηγορία:	[EL] Πολιτική μηχανική[EN] Civil Engineering
Κάτοχος πνευματικών δικαιωμάτων:	© The Author(s) 2021.
Ηλεκτρονική διεύθυνση του τεκμηρίου στον εκδότη:	https://fl-nzgs-media.s3.amazonaws.com/uploads/2022/06/Riga_NZGS2020_Submission_Ref-0037-TR-1.pdf https://www.nzgs.org/libraries/how-much-may-the-precision-of-site-conditions-modelling-affect-seismic-risk-assessment-at-large-urban-scale-the-case-of-thessaloniki-greece/
Ηλεκτρονική διεύθυνση περιοδικού:	https://fl-nzgs-media.s3.amazonaws.com/uploads/2022/06/NZGS-Symposium-2021-Proceedings-1.pdf
Τίτλος πηγής δημοσίευσης:	Handbook of the 21st Symposium of the New Zealand Geotechnical Society
Όνομα εκδήλωσης:	21st Symposium of the New Zealand Geotechnical Society
Τοποθεσία εκδήλωσης:	Dunedin, New Zealand
Ημ/νία έναρξης εκδήλωσης:	24/03/2021
Ημ/νία λήξης εκδήλωσης:	26/03/2021
Σημειώσεις:	The research described herein has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreements No 730900 (Seismology and Earthquake Engineering Research Infrastructure Alliance for Europe ‘SERA’ project). The authors would like to thank Helen Crowley and Venetia Despotaki for supporting this work. The second author would like to thank the state scholarships foundation of Greece (IKY) for providing financial support for this research. Originally scheduled for October 2020, due to the COVID-19 pandemic we have been able to host this symposium in March 2021
Εμφανίζεται στις συλλογές:	Μεταδιδακτορικοί ερευνητές