PSI - Issue 44

Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2022) 000 – 000

www.elsevier.com/locate/procedia

ScienceDirect

Procedia Structural Integrity 44 (2023) 1562–1569

© 2023 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the scientific committee of the XIX ANIDIS Conference, Seismic Engineering in Italy. Abstract Historical buildings are of foremost importance due to their unique and irreplaceable value. However, their ageing structure and materials make them particularly vulnerable to structural damage. This may result in catastrophic failure under strong motions, which are unfortunately not uncommon in seismic areas such as Italy. This numerical study discusses the application of Wavelet Level Decomposition (WLD) to the seismic response of such historical structures. The simulated data are obtained from a calibrated Finite Element (FE) model of the Santa Maria and San Giovenale Cathedral bell tower in Fossano (Northern Italy). This structure suffered major structural damage during an earthquake in 1887; it then underwent several interventions, the last one being in 2012. It is also currently scheduled for further reinforcement works in the near future. The FE analyses consider a set of realistic earthquake inputs in accordance with the seismic hazard zone of Fossano, with and without damage (modelled as a stiffness reduction in the façades, considering several possible crack patterns). The results show the potential for WLD-based retrospective analysis after seismic events on recorded signals. © 2022 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license ( https://creativecommons.org/licenses/by-nc-nd/4.0 ) Peer-review under responsibility of the scientific committee of the XIX ANIDIS Conference, Seismic Engineering in Italy Keywords: wavelet analysis; discrete wavelet transform; multiresolution analysis; earthquake engineering; cultural heritage. This is an open access article under the CC BY-NC-ND license ( https://creativecommons.org/licenses/by XIX ANIDIS Conference, Seismic Engineering in Italy Wavelet level decomposition of the seismic response of a historic masonry bell tower with and without simulated structural damage Marco Civera a *, and Cecilia Surace a a Politecnico di Torino, Department of Structural, Building and Geotechnical Engineering, Corso Duca degli Abruzzi, 24, 10129, Turin, Italy al damage

* Corresponding author. E-mail address: marco.civera@polito.it E-mail address: marco.civera@polito.it

2452-3216 © 2022 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the scientific committee of the XIX ANIDIS Conference, Seismic Engineering in Italy

2452-3216 © 2023 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the scientific committee of the XIX ANIDIS Conference, Seismic Engineering in Italy. 10.1016/j.prostr.2023.01.200