Structural performance assessment of full-scale masonry wall systems using operational modal analysis: Laboratory testing and numerical simulations
Metadatos
Mostrar el registro completo del ítemAutor
Meoni, Andrea; D'Alessandro, Antonella; Mattiacci, Michele; García Macías, Enrique; Saviano, Felice; Parisi, Fulvio; Lignola, Gian Piero; Ubertini, FilippoEditorial
Elsevier
Materia
Masonry structures Structural health monitoring Operational modal analysis
Fecha
2024-02-17Referencia bibliográfica
Meoni, Andrea, et al. Structural performance assessment of full-scale masonry wall systems using operational modal analysis: Laboratory testing and numerical simulations. Engineering Structures 304 (2024) 117663 [10.1016/j.engstruct.2024.117663]
Patrocinador
Italian Ministry of University and Research (MUR) through the PRIN-2017 project DETECTAGING (Degradation Effects on sTructural safEty of Cultural heriTAGe constructions through simulation and health monitorING, Project code 201747Y73L); European Union - NextGenerationEU and the University of Perugia for supporting the work through the project Vitality framed within the National Innovation Ecosystem Grant ECS00000041Resumen
Operational Modal Analysis (OMA) is a powerful approach to be used in structural performance assessment of
historical masonry buildings during their service life. OMA is effective for detecting global damage to masonry
buildings, although in some conditions it may exhibit poor sensitivity in detecting local/slight structural
damage. Additionally, establishing robust correlations between changes in modal features and the residual
load-bearing capacity of monitored buildings is an unresolved task in most of real-world applications. To
deepen into these aspects, this paper presents an experimental and numerical program involving two full-scale
masonry wall specimens tested under controlled laboratory conditions. Progressive damage was induced in
diverse structural settings, and OMA was used to identify the modal features of the wall systems at increasing
damage levels. Damage-induced decays in modal features were correlated with performance limit states related
to the structures’ residual load-bearing capacity, while non-linear Finite Element (FE) models were defined to
replicate the tests. The obtained results contribute to filling current research gaps by demonstrating that natural
frequencies and mode shapes can be sensitive to local and slight structural damage, also proposing correlations
between damage-induced decays in modal features and performance limit states, hence corroborating the use
of FE models for replicating damage-induced decays in both vibration frequencies and mode shapes.