Evaluation of soil-building resonance effect in the urban area of the city of Matera (Italy)

CLARA WebGIS: Sharing Soil and Building Geophysical Data for Seismic Characterization of the City of Matera (Southern Italy)

“…In the framework of the CLARA project, we have evaluated the interaction effect between near-surface geology and all overlying buildings in the urban area of the city of Matera as thoroughly described by [8]. To this end, we planned and performed 107 singlestation seismic ambient noise measurements on the main urban lytologies and 62 on the main building typologies.…”

“…The scientific and technological challenge of the "CLARA'' project has consisted in developing, from a Smart Cities perspective, innovative products and services for the mitigation of seismic and hydrogeological risks in urban and semi-urban areas through the active involvement of public administrations (service oriented approach). In the framework of this project we have pursued two objectives: i) the development of systemic approach for the characterization of the main physical properties of the urban subsoil and overlying built environment based on the full integration of the most modern, non-invasive, expeditious and lowcost geophysical technologies [7][8][9][10]; ii) digital archiving of all geological, geotechnical, geophysical and engineering data for the city of Matera, acquired during the CLARA project and already available. In this sense, a high potential is present in the synergistic use of modern information and communication technologies and in the paradigm of open data.…”

“…The soilbuilding interaction effect for a single/limited number of closed-spaced buildings has been numerically and experimentally studied [36,35,37,38], while for the urban scale as a whole only numerical simulation approaches have been proposed [39,40,33,[41][42][43][44][45]. Recently, Agea-Medina et al (2020) [46] have evaluated the probability of resonance effect in several districts of municipalities of Alicante and Elche while other authors have produced soilbuildings resonance level maps based on numerical relations provided by seismic regulations [47], Tallini et al (2020) [48] and on extensive collection of experimental data [8]. As a legislative point of view the microzonation studies focus exclusively on seismotectonic, lithostratigraphic and geotechnical aspects of shallow soil, completely neglecting the presence and role of buildings [8].…”

“…Recently, Agea-Medina et al (2020) [46] have evaluated the probability of resonance effect in several districts of municipalities of Alicante and Elche while other authors have produced soilbuildings resonance level maps based on numerical relations provided by seismic regulations [47], Tallini et al (2020) [48] and on extensive collection of experimental data [8]. As a legislative point of view the microzonation studies focus exclusively on seismotectonic, lithostratigraphic and geotechnical aspects of shallow soil, completely neglecting the presence and role of buildings [8]. Thanks to seismic microzonation studies it is possible to know exactly the areas susceptible to seismic amplification and instabilities, but there is not at all information about areas of cities where the soil -building resonance effect could take place during earthquakes.…”

“…The increasing availability of new high-resolution optical spaceborne sensors allows to produce precise DSMs (such as the one included in the CLARA WebGIS) ensuring low cost, speed of data acquisition and processing, and relaxed logistic requirements [52]. For detailed presentation of the experimental design and the methodology adopted to produce the soil-building resonance map and to generate the DSM, the interested readers can refer to Gallipoli et al (2020) [8] and to Lastilla et al (2021) [53], respectively.…”