PSI - Issue 44

Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2022) 000 – 000 Available online at www.sciencedirect.co ci c ir ct Structural Integrity Procedia 00 (2022) 000 – 000

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

ScienceDirect

Procedia Structural Integrity 44 (2023) 1164–1171

© 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 To reach the ambitious target of decarbonization by 2050, a deep transformation of the construction sector and a systematic renovation of the existing building stock, is required. To be effective, such a renovation requires the adoption of a Life Cycle Thinking (LCT) approach and the implementation of new digital tools to maximize the performances, while enabling the reduction of impacts and costs along the whole building life cycle. The paper proposes a retrofitting intervention, applied to a real case study, that accounts for all these aspects and it is conceived to be applied from the outside, without relocating the inhabitants as to overcome one of the major renovation barriers. From a structural point of view, the retrofit solution entails the adoption of a wooden shell made of CLT prefabricated panels, connected to the building and to the foundations by means of dry, standardized and easy demountable connections, also lumping damage in case of earthquakes. For improving the energy efficiency an optimized thermal layer is applied on the envelope, and a new plant system is introduced around the structural shell. The new plant system enables inspectability and the possibility of further implementation of components over time without interrupting the building functions. Finally, additional sensors are adopted for the continuous monitoring of structural health, energy consumption and comfort relevant metrics. © 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 ie unde responsibility of the scientific committee of the XIX ANIDIS Conf rence, Seismic Engineering in Italy Abstract To reach the ambitious target of decarbonization by 2050, a deep transformation of the construction sector and a syste atic renovation of the existing building stock, is required. To be effective, such a renovation requires the adoption of a Life Cycle Thinking (LCT) approach and the implementation of new digital tools to maximize the performances, while enabling the reduction of impacts and costs along the whole building life cycle. The paper proposes a retrofitting intervention, applied to a real case study, that accounts for all these aspects and it is conceived to be applied from the outside, ithout relocating the inhabitants as to overco e one of the ajor renovation barriers. Fro a structural point of vie , the retrofit solution entails the adoption of a wooden shell made of CLT prefabricated panels, connected to the building and to the foundations by means of dry, standardized and easy demountable connections, also lu ping da age in case of earthquakes. For improving the energy efficiency an optimized thermal layer is applied on the envelope, and a ne plant syste is introduced around the structural shell. The new plant syste enables inspectability and the possibility of further i ple entation of co ponents over ti e ithout interrupting the building functions. Finally, additional sensors are adopted for the continuous onitoring of structural health, energy consu ption and co fort relevant etrics. © 2022 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license ( https://creativeco ons.org/licenses/by-nc-nd/4.0 ) Peer-review under responsibility of the scientific committee of the XIX ANIDIS Conference, Seismic Engineering in Italy XIX ANIDIS Conference, Seismic Engineering in Italy Application of CLT prefabricated exoskeleton for an integrated renovation of existing buildings and continuous structural monitoring J. Zanni* a , S. Castelli a , M. Bosio a , C. Passoni a , S. Labò a , A.Marini a , A. Belleri a , E. Giuriani b , G. Brumana a , C. Abrami, S. Santini, G. Venturelli, A.L. Marchetti XIX ANIDIS Conference, Seis ic Engineering in Italy li ti f r f ri t s l t f r i t r t r ti f isti il i s ti s str t r l nitoring J. Zanni* a , S. Castelli a , . osio a , . assoni a , . abò a , . arini a , . elleri a , E. iuriani b , . ru ana a , . bra i, . antini, . enturelli, . . archetti a University of Bergamo, Viale Marconi 5, Dalmine 24044 (BG), Italy b University of Brescia, Via Branze 38, Brescia 251234 (BS), Italy a University of Bergamo, Viale Marconi 5, Dalmine 24044 (BG), Italy b University of Brescia, Via Branze 38, Brescia 251234 (BS), Italy

* Corresponding author. Tel.: +0-000-000-0000 ; fax: +0-000-000-0000 . E-mail address: jacopo.zanni@unibg.it * Corresponding author. Tel.: +0-000-000-0000 ; fax: +0-000-000-0000 . E-mail address: jacopo.zanni unibg.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 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

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.2023.01.150