PSI - Issue 64

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ScienceDirect Structural Integrity Procedia 00 (2023) 000 – 000 Structural Integrity Procedia 00 (2023) 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 64 (2024) 1733–1742

SMAR 2024 – 7th International Conference on Smart Monitoring, Assessment and Rehabilitation of Civil Structures Sustainable structural retrofitting for historic buildings: a long-term decision analysis approach Raul Berto a *, Chiara Bedon a , Andrea Mio a , Alessandro Mazelli a , Paolo Rosato a a University of Trieste, Department of Engineering and Architecture, via Valerio 6/1, Treise 34127, Italy Abstract The structural design of retrofitting solutions for historic buildings is a complex decision-making process and can be effectively integrated by various approaches able to take into consideration the entire life cycle of the project. The present study develops a decision tool for the design of refurbishment interventions for historic buildings, adopting a Life Cycle Thinking approach and integrating the long-term multi-attribute decision analysis. Starting from the multi-parameter analysis of a selected building, two timber- and one concrete-based structural interventions of floors strengthening are analyzed using an ELECTRE-based method, and considering a combination of economic, architectural, environmental, and structural effects related to present, medium-, and long-term performance aspects. The study demonstrates that the rehabilitation of existing buildings can be effectively supported and optimized to integrate technological performances with long-term effects of different solutions. © 2024 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 SMAR 2024 Organizers Keywords: intertemporal Multi-Criteria Decision Analysis; Life Cycle Thinking; historic buliding; structural retrofit; timber; concrete 1. Introduction The structural design process for the retrofit of historic buildings must account for more than just technological aspects. It is crucial to consider the architectural compatibility of the intervention with the original characteristics of the building alongside the potential environmental impact and economic aspects of the project. The experience gained from the 1950s in the recovery of historical artifacts has brought contrasting positions to light that have often pitted SMAR 2024 – 7th International Conference on Smart Monitoring, Assessment and Rehabilitation of Civil Structures Sustainable structural retrofitting for historic buildings: a long-term decision analysis approach Raul Berto a *, Chiara Bedon a , Andrea Mio a , Alessandro Mazelli a , Paolo Rosato a a University of Trieste, Department of Engineering and Architecture, via Valerio 6/1, Treise 34127, Italy Abstract The structural design of retrofitting solutions for historic buildings is a complex decision-making process and can be effectively integrated by various approaches able to take into consideration the entire life cycle of the project. The present study develops a decision tool for the design of refurbishment interventions for historic buildings, adopting a Life Cycle Thinking approach and integrating the long-term multi-attribute decision analysis. Starting from the multi-parameter analysis of a selected building, two timber- and one concrete-based structural interventions of floors strengthening are analyzed using an ELECTRE-based method, and considering a combination of economic, architectural, environmental, and structural effects related to present, medium-, and long-term performance aspects. The study demonstrates that the rehabilitation of existing buildings can be effectively supported and optimized to integrate technological performances with long-term effects of different solutions. © 2024 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 SMAR 2024 Organizers Keywords: intertemporal Multi-Criteria Decision Analysis; Life Cycle Thinking; historic buliding; structural retrofit; timber; concrete 1. Introduction The structural design process for the retrofit of historic buildings must account for more than just technological aspects. It is crucial to consider the architectural compatibility of the intervention with the original characteristics of the building alongside the potential environmental impact and economic aspects of the project. The experience gained from the 1950s in the recovery of historical artifacts has brought contrasting positions to light that have often pitted © 2024 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 SMAR 2024 Organizers

* Corresponding author. Tel.: +39 040 558 3831. E-mail address: rberto@units.it * Corresponding author. Tel.: +39 040 558 3831. E-mail address: rberto@units.it

2452-3216 © 2024 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 SMAR 2024 Organizers 2452-3216 © 2024 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 SMAR 2024 Organizers

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