PSI - Issue 44

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

www.elsevier.com/locate/procedia

ScienceDirect

Procedia Structural Integrity 44 (2023) 910–917

© 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 In long-term structural health monitoring (SHM), one of the main challenges is to correlate an observed variation of vibration period with a damage level for a structure. The aim of this paper is to propose a methodology to quantify the seismic damage in a building through SHM data. For this purpose, an existing reinforced concrete building has been selected as a case-study and non linear dynamics analyses have been carried out to estimate local and global damage levels. Ranges of variation of the vibration period of the building are derived for each damage level, and are compared with those previously assessed by the authors for single columns. © 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: Structural health monitoring; Period elongation; Damage level; Introduction Damage can be defined as those changes in a system that affect its current or future performance and can occur for a variety of reasons. The implicit concept in this definition is that damage is meaningless unless one compares two different configurations of the system, one of which is the default level (i.e., the undamaged level), and the other is the damaged one. Damage to civil structures can be caused by several phenomena such as ageing deterioration or extreme events, and the structural safety estimation is a critical issue for building's occupants. The aim of Structural Health Monitoring (SHM) is to detect and monitor changes of a specific features of a building to assess the presence of damage and its location, severity and type (Worden et al., 2007). The proper implementation of a monitoring system can help to detect the damage of structures at an early stage, increase the safety level and This is an open access article under the CC BY-NC-ND license ( XIX ANIDIS Conference, Seismic Engineering in Italy Correlation of local and global structural damage state for SHM Alessandro Lubrano Lobianco a *, Marta Del Zoppo a , Marco Di Ludovico a a University of Naples “Federico II”, Via Claudio 21, Naples (80125), Italy a a a

* Corresponding author. E-mail address: alessandro.lubranolobianco@unina.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.2023.01.118