Measuring the modal parameters of a cultural heritage tower by using strong-motion signals
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Título: | Measuring the modal parameters of a cultural heritage tower by using strong-motion signals |
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Autor/es: | Diaferio, Mariella | Foti, Dora | Giannoccaro, Nicola Ivan | Ivorra, Salvador |
Grupo/s de investigación o GITE: | Grupo de Ensayo, Simulación y Modelización de Estructuras (GRESMES) |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Ingeniería Civil |
Palabras clave: | Operational Modal Analysis (OMA) | Forced vibrations of historical buildings | Strong motion modal parameters identification | Vibrodyne excitation |
Área/s de conocimiento: | Mecánica de Medios Continuos y Teoría de Estructuras |
Fecha de publicación: | oct-2018 |
Editor: | International Measurement Confederation (IMEKO) |
Cita bibliográfica: | Acta IMEKO. 2018, 7(3): 86-94. doi:10.21014/acta_imeko.v7i3.601 |
Resumen: | This paper presents the dynamic experimental campaign carried out on a stocky masonry clock tower situated in the Swabian Castle of Trani (Italy). The main objective of this paper is, after estimating the main frequencies and vibration modes of the considered structure, defining the transmission of vibrations along the height of the tower by varying the forced frequency at the base. At this aim, short acceleration records have been acquired simultaneously in 20 points of the tower at different levels, due to a series of sinusoidal forced vibrations applied at the base by using a pneumatic shaker device specifically designed for the tests. The proposed procedure permits to extract for each monitored point the amplitude of the sinusoidal component related to the excitation frequency and the phase shift due to the structure damping. The results of the proposed procedure are compared with the results of a classical operational modal analysis in environmental conditions in order to demonstrate that the short forced tests permit to classify the typology of the structural mode shapes. |
Patrocinador/es: | This work was supported by Structural Monitoring of ARTistic and historical BUILding Testimonies - (S.M.ART. BUIL.T.) Project of the European Territorial Cooperation Programme Greece-Italy 2007-2013 and by PRIN-MIUR 2010 research project entitled “Dynamics, Stability and Control of Flexible Structures”. |
URI: | http://hdl.handle.net/10045/82587 |
ISSN: | 2221-870X |
DOI: | 10.21014/acta_imeko.v7i3.601 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | © 2018 IMEKO. This is an open-access article distributed under the terms of the Creative Commons Attribution 3.0 License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited |
Revisión científica: | si |
Versión del editor: | https://doi.org/10.21014/acta_imeko.v7i3.601 |
Aparece en las colecciones: | INV - GRESMES - Artículos de Revistas |
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2018_Diaferio_etal_Acta-MEKO.pdf | 1,14 MB | Adobe PDF | Abrir Vista previa | |
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