Abstract. This work deals with the evaluation of the seismic vulnerability of urban areas. The city of Florence has been selected to be the case-study of the analysis. The work is organized in two main parts. The first one consists of the representation of the area hazard. Starting from the PGA of the area, a map of the amplification factors and of the fundamental frequen-cies has been made, by performing an extensive experimental campaign. The second step is focused on the buildings properties, and on the increase in the seismic hazard – and the con-sequent vulnerability – due to the possible occurrence of resonance. A large data-bank of the buildings has been collected, and they have been classified after their structural material (masonry versus reinforced concrete) and height. As a result of the collected information, a map of the fundamental period of vibration of the buildings has been obtained, by adopting the expressions provided by the current International Codes. The comparison between the pe-riod of each building and the one of its foundation soil has provided the resonance index (RI), which can be considered as an hazard parameter related to each building.
SEISMIC HAZARD OF URBAN AREAS: A CASE-STUDY / Lacanna, Giorgio; Deguy, Pauline; Ripepe, Maurizio; Coli, Massimo; Paoletti, Barbara; Barducci, Sara; Tanganelli, Marco; Viti, Stefania; De Stefano, Mario. - STAMPA. - (2016), pp. 0-0. (Intervento presentato al convegno ECCOMAS Congress 2016 - VII European Congress on Computational Methods in Applied Sciences and Engineering tenutosi a Crete Island, Greece nel 5–10 June 2016).
SEISMIC HAZARD OF URBAN AREAS: A CASE-STUDY
LACANNA, GIORGIO;DEGUY, PAULINE ISABELLE;RIPEPE, MAURIZIO;COLI, MASSIMO;PAOLETTI, BARBARA;BARDUCCI, SARA;TANGANELLI, MARCO;VITI, STEFANIA;DE STEFANO, MARIO
2016
Abstract
Abstract. This work deals with the evaluation of the seismic vulnerability of urban areas. The city of Florence has been selected to be the case-study of the analysis. The work is organized in two main parts. The first one consists of the representation of the area hazard. Starting from the PGA of the area, a map of the amplification factors and of the fundamental frequen-cies has been made, by performing an extensive experimental campaign. The second step is focused on the buildings properties, and on the increase in the seismic hazard – and the con-sequent vulnerability – due to the possible occurrence of resonance. A large data-bank of the buildings has been collected, and they have been classified after their structural material (masonry versus reinforced concrete) and height. As a result of the collected information, a map of the fundamental period of vibration of the buildings has been obtained, by adopting the expressions provided by the current International Codes. The comparison between the pe-riod of each building and the one of its foundation soil has provided the resonance index (RI), which can be considered as an hazard parameter related to each building.File | Dimensione | Formato | |
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