86,631 research outputs found
Densificare altrimenti: norme e condizioni per una trasformazione socialmente sostenibile del patrimonio esistente
No full textThe idea of dedicating an issue of the magazine to the relationship between housing and density was born of the
observation of recent phenomenon influencing dynamics of growth in the world’s principal cities and metropolises.
I am speaking of the trend of developing compact residential models based on the modernist principles of the
building-city that places all of the complex relations and dynamics typical of an urban condition in a single building.
The intention is to occupy the least amount of land while creating space for the highest number of residents and
functions to limit the consumption of land and energy and protect the environment. Any city that considers itself, or
aspires to become internationally competitive, now contains projects of this type. Projects designed by the world’s
leading architects whose experiments are designed to respond to the “inexorable” and global phenomenon of the
progressive rise in the number of people living in large cities (forecasts for 2050 place this value at 70% of the world’s
population). Densification is considered the most effective and most environmentally sustainable remedy against the
consumption of more land. This phenomenon is affecting numerous communities in different geographic areas of the
world whose urban development policies, a response to the pressing demand for new housing, above all in South East
Asia, appear to be dictated more by economic and speculative logics than by effective principles of environmental and
above all social sustainability. This is demonstrated on the one hand by the preference for vertical development and,
on the other hand, by the disappearance of the individual and the sphere of personal emotions; people are reduced to
mere users of housing that, be it high-end or low-cost, proposes standardised solutions dictated by market logics that
show little interest in the expectations of inhabitants or the research of architects.
The selection of projects presented in this issue offers a partial though significant cross section of this trend, focusing
on examples of high quality architecture. However, it takes more than the formal exploits, no matter how interesting,
of internationally recognised architects, capable of skilfully and inventively overcoming stringent restrictions imposed
by the over-concentration of people and things in a single project, to convince us that this is the correct way forward.
Thus, despite the attempt to reacquire portions of exterior space by creating vertiginous terraces in a tower in
Montpellier (Sou Fujimoto Architects, p. 34), the creation of areas where the community can meet in a dense
apartment block in Pune, India (MVRDV, p. 50), the panoramic views offered by a tower in Stockholm (OMA, p. 58) or
the elegant and sophisticated sequences of interior-exterior space of high-density low-rise housing in Madrid (Studio
MK27 Marcio Kogan, p. 76), numerous questions remain. Questions and issues that introduce a broader and
constructive debate on the themes of dwelling and urban densification. Considered today, in the context of the global
pandemic, these issues are as actual as ever and cause for further reflection. An initial important consideration is that
design research in the field of housing has lost the vitality that, from early Modernism to the late 1970s, framed it
within an urban vision supported by significant moments of social redemption and shared values. Once considered at
the human scale, it was successively levelled by the growing dominance of private clients that transformed housing
into a mere investment, privileging globalised and pre-packaged solutions, often highly attractive though generally not
sustainable in terms of human inhabitation
Abitare gli spazi della norma. Inerzie e sovversioni
No full textNella produzione e nella trasformazione degli alloggi e degli spazi abitativi, le norme hanno un ruolo fondamentale. Conquista civile e culturale, alcune di queste frenano oggi la sperimentazione di soluzioni capaci di innovare e meglio aderire ai profili abitativi emergenti. Da alcuni anni a questa parte si riconosce una chiara e ricorrente domanda di innovazione dell’offerta abitativa, ma il disegno di risposte in forma di politiche e progetti si scontra con l’inerzia al cambiamento del sistema delle norme esistenti. La nostra tesi è che al mutare dei caratteri della domanda abitativa, alcuni dei vincoli normativi che hanno guidato sino ad ora i caratteri dell’offerta siano da ridiscutere. Questo orientamento non è scontato: i vincoli correlati a leggi, decreti, regolamenti, normative sono assunti come ineluttabili. L’attenzione semmai investe la possibilità di muovere entro lo spazio, più o meno serrato, dei margini di discrezionalità e delle occasioni di sperimentazione. A partire da un insieme di casi italiani ed europei, istruiti nell’ambito di una ricerca di base finanziata dal Dipartimento di Architettura e Studi Urbani rivolgendo l’attenzione a quelle pratiche progettuali e d’uso che hanno saputo mettere in rilevo tensioni e snodi critici rispetto alle norme vigenti, proponiamo una prima interpretazione degli elementi emergenti
Ripensare il nesso casa-città nei luoghi dell’‘excel urbanism’
No full textIl contributo presenta i primi esiti di una ricerca interdisciplinare condotta con una particolare attenzione alla relazione tra progetto architettonico, strumenti urbanistici e politiche abitative. La ricerca pone lo sguardo su parti relativamente recenti delle nostre città: insediamenti a carattere residenziale e disegno unitario, appartenenti a una prima stagione di interventi di riqualificazione di aree produttive dismesse sviluppati a cavallo del millennio. Esito di concertazione pubblico-privato, hanno svolto un ruolo importante nell’offerta residenziale, coniugando politiche abitative pubbliche e libero mercato, con esiti spesso contrastanti in termini qualitativi. Questa ricerca solleva l’esigenza di una revisione progettuale che, per quanto precoce, ci pare necessaria per anticipare processi di fragilizzazione dovuti alla mancata capacità degli spazi di adattarsi ai noti cambiamenti socio-demografici fortemente accelerati dalla pandemia. Il contributo esplora questi temi a partire dallo studio di alcuni dei cosiddetti P.R.U. (Programmi di Riqualificazione Urbana o Programmi Integrati di Intervento) di Milano. Dall’analisi di cinque tra i più importanti emergono caratteri comuni generati da una risposta prevalentemente quantitativa alla domanda residenziale, che raduneremo sotto il nome di excel urbanism. A distanza di soli quindici anni, questi luoghi mostrano segni di obsolescenza e portano a interrogarsi su come intervenire. Da qui la proposta di ripensare la concatenazione degli spazi a cavallo tra casa e città, e quindi i rapporti tra individuo e collettività. Il contributo
si propone di: restituire una lettura critica degli esiti spaziali e sociali di questa stagione di insediamenti, adottando un punto di vista originale tra policy analysis, architettura e disegno urbano; e rilanciare le sfide poste dal mutare del tessuto socio-demografico, evidenziando opportunità, testando scenari e proponendo strategie per trasformazioni che impattino positivamente sul nesso casa-città
Accuracy of complex internal channels produced by laser powder bed fusion process
No full textAdditive manufacturing (AM) technology has great potential in manufacturing complex internal channels for several applications such as satellite-communication microwave systems. These systems can have complex shapes and make traditional finishing processes a challenge for additive parts. Therefore, it is desirable that the internal surfaces are as close as possible to the tolerance of the field of application. In this study, a complex component, a unique waveguide device with bending, twisting and filtering functionalities, has been designed and manufactured in AlSi10Mg alloy through laser powder bed fusion (L-PBF) process. Three different prototypes with three different curvature (R of 50 mm, 40 mm and 30 mm), operating in Ku/K band, have been manufactured and tested showing a very good agreement with the desired performances. Using 3D scan data, the internal deviations from the CAD model have been evaluated showing an average deviation of the internal areas of about 0.08 mm, 0.046 mm and 0.023 mm from the CAD model for the R of 50 mm, 40 mm and 30 mm respectively The surface roughness measured in the internal channel is about Ra (arithmetic average roughness) of 8 μm ± 1.3 μm and Rz (average maximum height of the roughness profile) of 62.3 μm ± 0.34 μm
Purificanti e detersivi: immagini e passioni del quotidiano
No full textthis essay analyzes some cases of hygiene product advertising to uncover the forms of valorization and affective dynamics related to the pure/impure cultural dichotom
3D Printing of Ka band Orthomode Transducers
No full textIn this paper, the advance of an on-going research activity jointly developed by CNR-IEIIT, IIT and Politecnico di Torino in the design and SLM manufacturing of high performances microwave devices is reported. In particular, two prototypes of Ka-band Orthomode Transducers, based on a novel AM-oriented layout, are presented. All the component building blocks, such as, coupling junction, bends and twists are integrated in a single mechanical part suitable for 3D printing
Additive Manufacturing of K/Ka/Q/V-Band Feed-Horns
No full textIn this work the design and the Selective Laser Melting (SLM) manufacturing of single- and dual-band high-performance horns operating within the Ku to V bands are considered. A smooth wall architecture has been preferred in order to simplify the manufacturing and enhancing the SLM quality. Three prototypes have been designed, built and successfully tested
Quando il brand destina la città: Billund e LEGO
No full textThe contribution aims to explore the link between brand and city, starting from the case of Billund, which is not an example of a city becoming a brand (a common occurrence by now), but, conversely, of a brand becoming a city. This small town in southern Denmark has in fact been the headquarters, for about a century, of LEGO, the well-known bricks company that has settled in the district, thus permeating its streets and neighbourhoods, cultural heritage and toponymy, visitor flows and the composition of its citizens
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