Smart Nanotechnology To Deliver Zero Carbon Eco-neighborhoods: Case Study – Neighborhoods Of The Functional City, “H” Building Typology In Mediterranean Countries

Smart cities are a necessary step towards a new sustainability scenario that accommodates the objectives of sustainability from a cross and synergistic perspective, with the support of new technologies, networks and more efficient large-scale systems (such as a minimum unit neighborhood). This paper addresses the urban renovation of the actual city by improving the envelope of an urban typology, using nanotechnology materials on the façades, roofs, and external renovations. This research presents the role of nanomaterials to enhance a sustainable society, on the existing city, with suitable constructive systems and in an easier way. The opportunity to use nanotechnology for the rehabilitation of residential neighborhoods built after the Second World War, which combines a number of advantages, will be presented

Shear capacity of HPFRC beams flexurally reinforced with steel and prestressed GFRP bars

This paper presents the relevant results from an experimental program to assess the shear capacity of high performance fiber reinforced concrete (HPFRC) beams flexurally reinforced with a hybrid system of passive steel and prestressed GFRP longitudinal bars. Three series of two beams with different level of prestressing were tested. The effect of prestressing level on the shear capacity of the beams was the main investigated parameter. The results showed an enhancement of the load carrying capacity, ductility and energy absorption with the increase of the prestress level. Based on the obtained results, the predictive performance of the analytical formulations of CEB-FIP Model Code 2010 and RILEM TC 162-TDF for the shear capacity of FRC beams was assessed. Both formulations seem appropriate for design purposes, but the CEB-FIP formulation predicts more conservative shear capacity. The experimental results demonstrated that the prestressing level has an effect on the shear capacity much higher than the one recommended by the codes

Sharing Innovation. The Acceptability of Off-site Industrialized Systems for Housing

From the sixties, innovation and industrialization have been a returning mantra for the construction sector at every new building cycle passage after an economic crisis, as a tool of overcoming difficulties. This positivism has always been disregarded, especially for housing and for Italy. To avoid this dynamic recur-rence even in the current ecological transition passage, research must provide, in parallel with innovative products and techniques, innovative cultural approaches so that extraordinary products and techniques can be accepted by the market, demon-strating how the synergy between them leads to a high added value for sustainable quality of living. Most of the actors (from designers to builders and maintainers) agree that innovative systems, especially industrialized off-site, are more sustainable, espe-cially today when sustainability and resilience are the core of the construction sector; despite this, these systems are struggling to spread. This contribution focuses on acceptability and decision-making processes that lead to innovative choices, iden-tifying the innovation of the functional, social and economic management of the buildings as the “missing ring” for housing. This acceptability has certainly increased today because of new form of “atypical” living, such as senior/student and temporary housing and co-living, which contribute to intensifying the demand of “industrial-ized”, flexible, affordable and reliable houses. Technological innovation, in fact, actives only if technical innovation is combined with strategies and new approaches in organization, marketing and after-sales services focused on sharing and partici-pation. Through an example of a realized off-site transformable residential building and case studies of new form of management, this contribution proposes innovation perspectives capable of overcoming design and decision-making obstacles to the spread of off-site systems, also identifying in the institutional sustainability one of the cores of this subject

Innovative Clay Unit Reinforced Masonry System: Testing, Design and Applications in Europe

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