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) 998–1005

© 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 Masonry elements modeling criteria and capacity models are useful for a correct numerical simulation. At first, this work refers to the piers and spandrels strength models according to the Italian design code, investigated in a dimensionless form. Then, the paper presents some preliminary results referring to the masonry strength and in-plane floor flexibility influence on the masonry buildings seismic behavior. Nonlinear pushover analyses are conducted on an ideal existing masonry case study, having three floors and assuming three specific masonry strengths and three floor behaviors. The pushover analyses, performed according to the equivalent frame model, show that in the case of poor masonry the response is not influenced by the in-plane floor stiffness, while it affects the response in the case of masonry of good quality. A mixed global failure mechanism is observed in all analyses performed. © 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: existing buildings; masonry; modeling criteria; numerical methods; pushover analysis 1. Introduction The architectural heritage of Italian cities and landscapes is mainly represented by historical masonry buildings, such as churches, castles and towers. The construction quality and techniques have been modified over time as function This is an open access article under the CC BY-NC-ND license ( htt XIX ANIDIS Conference, Seismic Engineering in Italy Modeling criteria for the seismic assessment of existing masonry buildings Roselena Sulla a *, Michele D’Amato a , Rosario Gigliotti b , Domenico Liberatore b a DiCEM, Dept. of European and Mediterranean Cultures: Architecture, Environment and Cultural Heritage, University of Basilicata, Via Lanera, Matera 75100, Italy b DISG, Dept. of Structural and Geotechnical Engineering, Sapienza University of Rome, Via Eudossiana 18, Rome 00184, Italy a a o b b

* Corresponding author. Tel.: +39 3272393953. E-mail address: roselena.sulla@unibas.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.2023.01.129