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In Italy, as in many other European countries, a large part of the real estate was built before the issue of restrictive regulations regarding seismic resistance and energy efficiency. Consequently, most existing buildings show inadequate structural and energy performance. However, although a combined renovation is highly recommended, and despite relevant tax incentives which are currently available, the building retrofit market is still struggling to take off. In fact, the lack of information and/or awareness of the involved parties and the consequent difficulty for condominiums to approve the retrofit works are often insuperable obstacles. A Decision Support System (DSS) may help in evaluating and comparing different combined renovation scenarios, thus promoting the regeneration of the building stock. This study presents a new methodology for the selection of the optimal building renovation scenario through a DSS, which is conceived as a tool to allow a quick, simple and effective identification of the best retrofit strategy, based on a priority scale (e.g., costs and duration of intervention, disruption to the occupants, environmental sustainability, energy savings, thermal comfort, structural safety). For this purpose, the DSS calculates suitable performance indices and relative costs. Finally, the system proposes a ranking of the best combined retrofit scenarios. This research study is still ongoing and next steps will deal with the calibration of the proposed methodology.
Antonio Artino; Riccardo Caponetto; Gianpiero Evola; Giuseppe Margani; Edoardo Marino; Emanuele Murgano. Decision Support System for the Sustainable Seismic and Energy Renovation of Buildings: Methodological Layout. Sustainability 2020, 12, 10273 .
AMA StyleAntonio Artino, Riccardo Caponetto, Gianpiero Evola, Giuseppe Margani, Edoardo Marino, Emanuele Murgano. Decision Support System for the Sustainable Seismic and Energy Renovation of Buildings: Methodological Layout. Sustainability. 2020; 12 (24):10273.
Chicago/Turabian StyleAntonio Artino; Riccardo Caponetto; Gianpiero Evola; Giuseppe Margani; Edoardo Marino; Emanuele Murgano. 2020. "Decision Support System for the Sustainable Seismic and Energy Renovation of Buildings: Methodological Layout." Sustainability 12, no. 24: 10273.
All around the world, a huge amount of buildings have been built before the enforcement of specific codes for seismic resistance and energy efficiency. Particularly in Italy, over 74% of residential buildings were constructed before 1980, when only 25% of the territory was classified as seismic, and nearly 86% were built before 1991, when the first restrictive regulation on energy efficiency was issued. This means that most buildings need both seismic and energy renovation actions to improve their sustainability level. The proposed combined retrofit strategy for reinforced concrete framed buildings is based on the replacement of the external layer of double-leaf infill walls, made of hollow bricks, with high-performing AAC blocks: this solution can be implemented by operating mainly from the outside of the building, thus reducing occupants’ disruption during retrofitting. The generally neglected structural contribution of masonry infill panels is here considered using a recently developed macro-element modeling approach. The results suggest that, from a structural viewpoint, the proposed intervention involves the highest improvement at the damage limitation limit state, while lower upgrades are recorded at life safety limit state and near-collapse limit state. In regards to the energy issues, the energy demand can be reduced by 10% and 4% for heating and cooling, respectively, just by replacing the outer layer of blocks; further savings can be achieved through the application of a supplementary insulation layer.
Antonio Artino; Gianpiero Evola; Giuseppe Margani; Edoardo Marino. Seismic and Energy Retrofit of Apartment Buildings through Autoclaved Aerated Concrete (AAC) Blocks Infill Walls. Sustainability 2019, 11, 3939 .
AMA StyleAntonio Artino, Gianpiero Evola, Giuseppe Margani, Edoardo Marino. Seismic and Energy Retrofit of Apartment Buildings through Autoclaved Aerated Concrete (AAC) Blocks Infill Walls. Sustainability. 2019; 11 (14):3939.
Chicago/Turabian StyleAntonio Artino; Gianpiero Evola; Giuseppe Margani; Edoardo Marino. 2019. "Seismic and Energy Retrofit of Apartment Buildings through Autoclaved Aerated Concrete (AAC) Blocks Infill Walls." Sustainability 11, no. 14: 3939.