Vulnerability analytical models at the regional scale through archetype buildings: an application to the Abruzzi region

Cianchino, Giorgia; Cocco, Giulio; Rapone, Davide; Lallo, Ylenia Di; Masciotta, Maria Giovanna; Brando, Giuseppe

doi:10.1016/j.prostr.2023.01.029

Cited by 2 publications

(1 citation statement)

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“…In each of these three approaches, the results are statistically processed and fitted for deriving fragility curves for building typological class. Latest studies propose an extension of these applications to derive overall fragility curves with regard to entire historical centres, urban areas, and regional territories [27][28][29][30][31].…”

Section: Introductionmentioning

confidence: 99%

A Typological-Mechanical Approach to Assess Large-Scale Seismic Fragility of Masonry Buildings in Historical Centres

Tosto,

Leggieri,

Ruggieri

et al. 2023

Proceedings of the 8th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

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The paper presents a mechanical approach for the assessment of large-scale seismic fragility for recurrent masonry building typologies in historical centres. Especially in the context of regional-scale analysis, the poor level of information drives analysts to develop suitable approaches to characterize in a synthetic way the seismic behaviour of the existing masonry building stock. Hence, the proposed framework arises from a matching between historical centres macro-classes and recurrent masonry building typologies defined by exploiting multisources data integration in GIS environment (e.g., census data, topographic cartographies, and information provided by the CARTIS form application). After, sets of mechanical models, which are sufficiently representative of the most widespread typologies on the regional territory, can be realized accounting for structural and morpho-typological features variability, as evincible from the available georeferenced database. Subsequently, nonlinear static analysis is adopted as analysis method where, for each model, Capacity/Demand ratio can be estimated for increasing levels of Peak Ground Acceleration. The obtained results are then processed according to Multiple Stripe Analysis method to derive typological fragility curves, which can be properly associated to historical centre macro-classes, covered by certain percentage of masonry building typologies. The proposed procedure was applied to the case study of Puglia region, allowing to investigate large portions of the building stock characterizing historical centres, by managing few information and by providing a methodology easily extendible to different context of applications.

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