This thesis focuses on the numerical modeling of the seismic behavior of non-structural masonry infills, considering both in-plane (IP) and out-of-plane (OOP) effects, and their interaction with reinforced concrete frames. After a critical review of the literature and of the main modeling strategies, the implementation of a two-strut macromodel, calibrated on the basis of experimental data and parametric analyses, has been evaluated. The model has been finally applied to a typical building through dynamic nonlinear simulations (time-history), in order to evaluate the global response of the structure, the damage limit states and the possible criticalities deriving from the progressive damage of the infills. The results highlight the importance of considering the frame-infill interaction in seismic design, especially with reference to local effects and to the distribution of the deformation demand along the height of the building.
Il presente lavoro di tesi si concentra sulla modellazione numerica del comportamento sismico delle tamponature in muratura non strutturale, considerando congiuntamente gli effetti in piano (In-Plane, IP) e fuori piano (Out-of-Plane, OOP), e la loro interazione con telai in cemento armato. Dopo una revisione critica della letteratura e delle principali strategie modellative, è stata valutata l'implementazione di un macromodello a due puntoni, calibrato sulla base di dati sperimentali e analisi parametriche. Il modello è stato infine applicato a un edificio-tipo mediante simulazioni non lineari dinamiche (time-history), al fine di valutare la risposta globale della struttura, gli stati limite di danno e le possibili criticità derivanti dal danneggiamento progressivo delle tamponature. I risultati evidenziano l’importanza di considerare l’interazione telaio-tamponatura nella progettazione sismica, soprattutto in riferimento agli effetti locali e alla distribuzione della domanda deformativa lungo l’altezza dell’edificio.
MODELLAZIONE DEL COMPORTAMENTO SISMICO COMBINATO IN PIANO E FUORI PIANO DELLE TAMPONATURE IN MURATURA E ANALISI DELLA LORO INTERAZIONE CON TELAI IN C.A.
ZANELLATO, GIULIO
2024/2025
Abstract
This thesis focuses on the numerical modeling of the seismic behavior of non-structural masonry infills, considering both in-plane (IP) and out-of-plane (OOP) effects, and their interaction with reinforced concrete frames. After a critical review of the literature and of the main modeling strategies, the implementation of a two-strut macromodel, calibrated on the basis of experimental data and parametric analyses, has been evaluated. The model has been finally applied to a typical building through dynamic nonlinear simulations (time-history), in order to evaluate the global response of the structure, the damage limit states and the possible criticalities deriving from the progressive damage of the infills. The results highlight the importance of considering the frame-infill interaction in seismic design, especially with reference to local effects and to the distribution of the deformation demand along the height of the building.| File | Dimensione | Formato | |
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Zanellato_Giulio.pdf
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https://hdl.handle.net/20.500.12608/89154