Joint deconvolution of building and downhole seismic recordings: an application to three test cases

Petrović, Bojana; Parolai, Stefano; Pianese, Giovanna; Dikmen, S. Umit; Moldobekov, Bolot; Orunbaev, S.; Paolucci, Roberto

doi:10.1007/s10518-017-0215-6

Cited by 13 publications

(3 citation statements)

References 39 publications

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“…Veletsos and Meek (1974) and Luco (1988) already pointed out that the interaction between structures and the foundation soil may have signi cant effects on the response due to three principal factors: 1) a exibly supported structure has more degrees of freedom and, consequently, different dynamic characteristics than a rigidly mounted structure; 2) a signi cant part of the vibrational energy of a exibly supported structure may be dissipated by radiation of waves into the supporting medium (e.g. Petrovic and Parolai 2016; Petrovic et al 2018a) or by damping in the foundation material; 3) the deformation of buildings associated with ground compliance lead to a rigid-body motion of the superstructure that may account for a signi cant portion of the total response (Veletsos and Meek 1974).…”

Section: )mentioning

confidence: 99%

FRIBAS database for better characterization of RC and URM buildings: Towards specific T-H relationships

Gallipoli

Petrović

Calamita

et al. 2022

Preprint

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FRIBAS database is an open access database (https://doi.org/10.5281/zenodo.6505442) made up of the characteristics of 313 buildings (71 masonry, 238 reinforced concrete and 4 mixed types). It collects and harmonizes data from different surveys performed on buildings in the Basilicata and Friuli Venezia Giulia regions (Southern and North-eastern Italy, respectively). Each building is defined by 37 parameters related to the building and foundation soil characteristics. Building and soil fundamental periods were estimated experimentally based on ambient noise measurements. FRIBAS gave us the opportunity to study the influence of the main characteristics of buildings to their structural response and soil-building interaction effect. In this study, we have used FRIBAS dataset to investigate how the building period varies as a function of building typologies and soil conditions. Our results motivate the need of going beyond a ‘one-fits-all’ numerical period-height (T-H) relationship for generic building typologies provided by seismic code, towards a specific characterization of T-H relationships that account for both soil and building typologies.

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Section: )mentioning

confidence: 99%

FRIBAS database for better characterization of RC and URM buildings: Towards specific T-H relationships

Gallipoli

Petrović

Calamita

et al. 2022

Preprint

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“…); however, there is no information about city areas where the soil-building interaction effect could take place thus increasing the damage during earthquakes. Several studies (Ganev et al 1995;Mucciarelli and Monachesi 1998;Castro et al 1998Castro et al , 2000Gallipoli et al 2004;Mucciarelli et al 2004;Gallipoli et al 2006;Mucciarelli et al 2011;Castellaro et al 2012;Ditommaso et al 2013;Petrovic et al 2018;Varone et al 2019) support the hypothesis that the soil-building resonance phenomenon can produce a significant damage increase on buildings during earthquakes; whenever the main vibration frequency of a building is very close to that of the underlying soil, the soil-building resonance phenomenon is triggered. During seismic events, when the interaction involves the entire built environment and shallow urban soils, then it is called site-city interaction.…”

Section: Introductionmentioning

confidence: 96%

Soil-building resonance effect in the urban area of Villa d’Agri (Southern Italy)

Gangone

Gallipoli

Tragni

et al. 2023

Bull Earthquake Eng

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This study aims to evaluate the possible occurrence during seismic shaking of interaction effects between the shallow subsoil and the overlying buildings of the Villa d’Agri town (Southern Italy). From the geological and building heritage points of view, the investigated area represents a typical town along the Apennines chain and therefore the obtained results could be easily exported to similar urban areas. A total of 239 single-station seismic ambient noise measurements were thus performed, 154 on the urban soils and 85 within buildings. Both subsets of measurements were planned to cover the main outcropping lithologies and building typologies. By means of the Horizontal-to-Vertical Noise Spectral Ratio technique, isofrequency and isoamplitude maps have been reconstructed for the whole area. The results evaluated on the 65 tested buildings allowed to infer the empirical relationship between the first vibrational period, T(s), and their height, H(m). Using this relationship and available information on the height of each building, the first vibrational frequency was estimated for 659 buildings belonging to the urban area of Villa d'Agri. Finally, in order to assess the possible occurrence of the double resonance phenomenon, we compared the main frequency of each building with that interpolated for the underlying foundation soil. The results show that the probability of being affected by the double resonance effect is very high only for a couple of buildings, high for about 16% of the buildings, moderate for the 23% and practically null for most buildings (60%).

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“…Over the past few decades, the application of such techniques in structural engineering has considerably increased due to the awareness that the dynamic properties of a building can provide a reliable overview of the state of integrity of the monitored structure. Considerable progress has been made in the field of structural monitoring and dynamic identification, using approaches based on the analysis of the variations of wave propagation [1][2][3][4][5][6][7] and on the techniques operating in the time-frequency domain [8][9][10][11][12][13][14][15][16][17]. The latter are particularly effective when the structural dynamic characteristics rapidly change over time.…”

Section: Introductionmentioning

confidence: 99%

Damage Detection and Localization on Real Structures Subjected to Strong Motion Earthquakes Using the Curvature Evolution Method: The Navelli (Italy) Case Study

et al. 2021

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In recent years, structural health monitoring (SHM) has received increasing interest from both research and professional engineering communities. This is due to the limitations related to the use of traditional methods based on visual inspection for a rapid and effective assessment of structures and infrastructures when compared with the great potential offered by newly developed automatic systems. Most of these kinds of systems allow the continuous estimation of structural modal properties that are strictly correlated to the mechanical characteristics of the monitored structure. These can change as a result of material deterioration and structural damage related to earthquake shaking. Furthermore, a suitable configuration of a dense sensor network in a real-time monitoring system can allow to detect and localize structural and non-structural damage by comparing the initial and a final state of the structure after a critical event, such as a relevant earthquake. In this paper, the modal curvature evaluation method, used for damage detection and localization on framed structures, considering the mode curvature variation due to strong earthquake shaking, is further developed. The modified approach is validated by numerical and experimental case studies. The extended procedure, named “Curvature Evolution Method” (CEM), reduces the required computing time and the uncertainties in the results. Furthermore, in this work, an empirical relationship between curvature variation and damage index has been defined for both bare and infilled frames.

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Joint deconvolution of building and downhole seismic recordings: an application to three test cases

Cited by 13 publications

References 39 publications

FRIBAS database for better characterization of RC and URM buildings: Towards specific T-H relationships

FRIBAS database for better characterization of RC and URM buildings: Towards specific T-H relationships

Soil-building resonance effect in the urban area of Villa d’Agri (Southern Italy)

Damage Detection and Localization on Real Structures Subjected to Strong Motion Earthquakes Using the Curvature Evolution Method: The Navelli (Italy) Case Study

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