Title: Dynamic identification and numerical model updating of an old bell-tower in Marche Region (Italy)

Authors: Ersilia Giordano; Angela Ferrante; Georgios P. Salachoris; Mattia Schiavoni; Francesco Clementi; Stefano Lenci

Addresses: Department of Civil and Building Engineering and Architecture, Polytechnic University of Marche, Ancona, Italy ' Department of Civil and Building Engineering and Architecture, Polytechnic University of Marche, Ancona, Italy ' Department of Civil and Building Engineering and Architecture, Polytechnic University of Marche, Ancona, Italy ' Department of Civil and Building Engineering and Architecture, Polytechnic University of Marche, Ancona, Italy ' Department of Civil and Building Engineering and Architecture, Polytechnic University of Marche, Ancona, Italy ' Department of Civil and Building Engineering and Architecture, Polytechnic University of Marche, Ancona, Italy

Abstract: In this paper, the dynamic characterisation of the civic bell-tower of Rotella (a small village in the Marche Region, Central Italy) is presented. The tower after being monitored, using four tri-axial piezo-electric accelerometers, and obtaining its dynamic characteristics, was modelled through a finite element software. The difference between measured and real values has been smoothed out by acting on all unknown parameters such as Young's moduli, thus obtaining a model with frequency differences, compared to reality, less than 5% and the MAC values between the modal shapes close to the unit.

Keywords: dynamic identification; numerical models; masonry towers; monumental buildings; structural health monitoring; finite element model; FEM; model updating; modal assurance criteria; Marche Region; Italy.

DOI: 10.1504/IJMRI.2023.131838

International Journal of Masonry Research and Innovation, 2023 Vol.8 No.4/5, pp.509 - 519

Received: 18 Aug 2021
Accepted: 08 Dec 2021
Published online: 04 Jul 2023 *

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