1,721,035 research outputs found
Regenerate the healthcare building heritage to a new care model: the Houses of Health in Sardinia Region, Italy
No full textRegenerate the healthcare building heritage to a new care model: the Houses of Health in Sardinia Region, Italy
No full textThe new Regional Healthcare Plan in Sardinia (2008) describes a territorial geography of health and social assistance based on new organizational models - the houses of Health - planning the requalification of the existing health care buildings stock. During the implementation phase, a number of problems come out due to economic and social obstacles and because of the difficulty of adapting the spatial and architectural characteristics of the existing buildings to the new functional model. Starting from the results of PRIN research, this paper illustrates a design tool to verify the residual quality
of the building stock, as programming support for the functional adaptation and prediction of investments
Refurbishment in a life cycle perspective for an eco-oriented public planning
No full textThe refurbishment of building stock, more and more, get to achieve interesting energy savings levels, but often do not consider the impacts associated with the building activities: i.e. production of construction and demolition wastes; environmental impacts associated with high-tech materials. Here, the extension to the urban scale of the procedure already developed and applied to the single building, to enhance in life cycle perspective the building components and the pre-existing materials, is presented. The aim is to draw up a first filing of an urban area to orient further design options to control environmental impact associated to refurbishment
Approcci metodologici del progetto dell'esistente tra spazio architettonico, tecnologia ed ambiente
No full textRecycling, downcycling e upcycling in edilizia
No full textEuropean Union is strongly committed since years in promoting sustainable development, by both regulatory actions and research support. Among others, the recycling of waste coming from urban and industrial sectors is a main policy target, especially on the path towards the circular economy, also intensely EU supported. This gives recycling even greater importance than in the past, as it could provide the flow of resources that feeds the economic cycles with minimal environmental impact. As result, focus is moving on the effectiveness of the recycling process and the quality of its outputs, as indicated by the appearance of new terms and concepts. While the term “recycling” designates a “simple” process of converting waste into reusable material; the recent and successful notion of “upcycle” implies the reuse of discarded
objects or material “in such a way as to create a product of higher quality or value than the original”. On the contrary, recycled products with a lower value than the original ones configure a downcycling. Since it accounts for about 30% of all waste generated in EU, construction and demolition waste (CDW) is identified as a priority sector within which recycling emerges as crucial issue, as well as the challenge to push up the quality of its outputs. After providing some definitions of the notions supporting such new approach, this document identifies the most relevant specific CDW streams involved in it, outlining a tentative mapping both of possible upcycling and CDW whose quality cannot or does not seem convenient to be enhanced.
The first results of the survey suggest that further investigations are needed to better identify the many variables that influence the path, such as the material geometrical shapes, residual performances, assembling and joining techniques, dismantling methods, not to mention environmental impacts related to handling processes and criteria to apply to rate the value of the recycled products
Adaptation and Enhancement of Small Historic Centres: A Multidimensional Mapping Model
No full textAccording to the New European Bauhaus, sustainability, aesthetics and inclusion should guide the renewal of our consumption and production lifestyles, based on a place-based and human-centred approach at different scales: territorial, urban, neighbourhood or small municipality. On the other hand, both the ecological transition and the resource circularity should support the revolution of project processes, methods and tools in a life-cycle perspective. This will take at least 25 years, but immediate action is urgently needed to redefine the boundaries of the future balance between humankind, environment and resources that are at risk.
In this scenario, the architectural heritage could become a resource—cultural, social and economic, but also environmental—as a stock of materials and energy embedded in the built environment. The historic centres (HC), a particular part of this heritage, are threatened by increasing depopulation and abandonment phenomenon as a paradigm of the linear approach to the built environment: HC embody values and resources that should be preserved and kept in use with a view to resources circularity. However, possible valorisation and regeneration strategies presuppose interventions that put at risk the values as well as the embedded resources.
The paper presents an ongoing methodology for the analysis and representation of small historic centres, based on a multidimensional model mapping that aggregates complex data on state of conservation and use, material consistency, residual performances, material and immaterial values. The intersection of new uses, performance improvement and associated environmental impacts describes the small historic centre’s margins of adaptability and resilience to potential risk of loss and alteration, by providing future design scenarios for regenerating and adapting
Dalla città all'interazione abitante-città. Alcune considerazioni a sostegno di una progettazione di spazi e servizi pubblici a misura di tutti e di ciascuno: l'esempio delle dementia friendly communities
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Valutazione della sostenibilità ambientale di interventi di riqualificazione edilizia, secondo un approccio LCA
No full textIl recupero e il riutilizzo dei manufatti esistenti sono riconosciuti come strategie potenzialmente efficaci per ridurre il consumo di risorse, limitare la produzione di rifiuti e prolungare il ciclo di vita della materia e dell’energia incorporate, costituendo quindi una chiave per implementare la circolarità nel flusso delle risorse. L’approccio –oggi ampiamente condiviso in molti settori- se applicato al patrimonio edilizio lo fa emergere come un ingente giacimento di risorse materiali da valorizzare, in aggiunta a quelle culturali da tutelare. Tuttavia, il retrofitting non è ambientalmente neutro: ogni intervento di recupero genera impatti sull’ecosistema, differenziati in ragione della complessità, peculiarità e varietà dei manufatti edilizi, oltre che condizionati dai requisiti tecnici e funzionali che un loro nuovo utilizzo deve soddisfare. La rimozione di parti non più utili genera un flusso di residui solo in parte riciclabili -quindi una voce negativa nel bilancio delle risorse- mentre il risarcimento dell’obsolescenza e l’incremento delle prestazioni fino ai livelli richiesti si ottiene per addizione di nuovi materiali e componenti, gli impatti indotti. Tutto ciò incide significativamente sui livelli di sostenibilità presunti, che vanno
quantificati redigendo accurati bilanci ambientali, utili ad ottimizzare le scelte progettuali, privilegiando quelle più environmental friendly in termini di effetti sull’intero processo. Il presente contributo propone criteri operativi, indicatori e parametri propedeutici ad una valutazione analitica secondo un approccio LCA degli impatti ambientali di interventi di riqualificazione, analizzandone gli effetti su un caso studio di recupero di edificio esistente, con lo scopo di favorire un approccio sostenibile al progetto di retrofitting
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