PSI - Issue 44

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

www.elsevier.com/locate/procedia www.elsevier.com/locate/procedia

Procedia Structural Integrity 44 (2023) 418–425

© 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 reinforced concrete buildings, non-structural elements (NSE), such as masonry infills and parapets, constitute the cause of a considerable number of fatalities and huge economic losses in developed countries, in the case of medium magnitude earthquakes (4-6 Mw). As an example, during the 5.2Mw 2011 Lorca (Spain) earthquake, falling debris from unreinforced masonry NSE gave rise to the nine fatalities incurred. The majority of these elements were located in 4 to 6-storey reinforced concrete residential buildings. Within this framework, this contribution addresses the characterization of the seismic demand of NSE through the study of the response of a building in Lorca pertaining to the described structural type, by means of the Floor Response Spectra (FRS) method. For this purpose, the infilled frame model was created in SAP2000 with masonry infills simulated by equivalent struts. The infilled frame model is calibrated so as to fit with the main elastic period of the building, identified by means of ambient vibration tests conducted with a Tromino device. The FRS results obtained with the numerical model by a Linear Time-History (THA) analysis simulating the Lorca earthquake, are compared with the results suggested by the Eurocode in force and by the Italian Building Code. Specifically, in the case of the Italian Building Code, both the simplified formulation for moment resisting frame buildings and the modal superposition spectrum-to-spectrum approaches are considered. Finally, the potential resonance of the dynamic behaviour between the obtained FRS and the natural periods of the masonry parapets located at the top of the building is discussed. © 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: Non-Structural Elements; Reinforced Concrete Buildings; Floor Response Spectra; Lorca 2011 Earthquake Abstract In reinforced concrete buildings, non-structural elements (NSE), such as masonry infills and parapets, constitute the cause of a cons derable number of fatal tie a d huge economic los es in developed countries, the case of medium magni ude arthquakes (4-6 Mw). As an example, dur ng the 5.2Mw 2011 Lorca (Spain) earthquake, falling debris from unreinforced masonry NSE gave rise to the nine fatalities incurred. The majority of these elements were located in 4 to 6-st rey reinforced concrete residential buildings. Within his framewo k, this contribu ion address s th charact rization of the seismic dema d of NSE through the study of the re ponse of a building in Lorca per a ning to the describ d stru tu al type, by mean of th Floor Response Spectra (FRS) me od. F r this purpose, the infilled frame model was created in SAP2000 with masonry infills simulat d by equivalent struts. The infilled frame mod l is calibrated so as t fit ith th main elastic period of the building, identified by means of ambient vibration tests conducted with a Tromin device. The FRS results obtained with the numerical model by a Linear Time-History (THA) analy is sim lating the Lo ca earthquak , ar compared with the resul s suggested by the Eurocode fo ce and by the Italian Building Code. Specifically, in the case of the Italian Building Code, bo h the simplified form lati n for moment resisting fr me buildings an the modal superposition spectrum-to-spectrum appr aches are considered. Finally, the potential r sonance of the dynamic beh viour between the obta ned FRS and the natural periods of the masonry pa apets located at the top of the building is discussed. © 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 re ponsibility of scientific committe of the XIX ANIDIS C nference, Seismic Engineering in Italy K ywords: Non-Structural Elements; Reinforced Con rete Buildings; Floor Response Spectra; Lorca 2011 Earthquake XIX ANIDIS Conference, Seismic Engineering in Italy NSE seismic demand characterization: the case of a Spanish RC residential building L. Navas-Sánchez a,b, *, F. Ferretti a , M. Savoia a , C. Gamboa-Canté b , J. Cervera Bravo b XIX ANIDIS Conference, Seismic Engineering in Italy NSE seismic demand characterization: the case of a Spanish RC residential building L. Navas-Sánchez a,b, *, F. Ferretti a , M. Savoia a , C. Gamboa-Canté b , J. Cervera Bravo b a University of Bologna, DICAM Department, Viale Risorgimento 2, 40136 Bologna, Italy b Universidad Politécnic de Madrid, ETSAM, Avd . Juan de H rrera , 28040 Madrid, Spain a University of Bologna, DICAM Department, Viale Risorgimento 2, 40136 Bologna, Italy b Universidad Politécnica de Madrid, ETSAM, Avda. Juan de Herrera 4, 28040 Madrid, Spain

* Corresponding author. Tel.: +34-627-976-233 E-mail address: laura.navas.sanchez@upm.es * Corresponding author. Tel.: +34-627-976-233 E-mail address: laura.navas.sanchez@upm.es

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 © 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.2023.01.055