64 research outputs found
An innovative school building design in the town of montemiletto
No full textBackground: This paper presents an innovative design for a school building, awarded in the concourse “Scuole innovative”, published by the italian Ministry of Education, University and Research. The new school building is located in a newly built urban area of Montemiletto (Avellino, Italy), at the southeast of the Leonessa castle and the ancient nucleus of the town. The Comprehensive Institute that includes a kindergarten, a primary school and a secondary school, is proposed as a Civic Center, an “urban place”, characterized by new spaces of relationship and aggregation. Objective: The main idea of the project design is the creation of an innovative school with respect to the architectural, structural and plant system aspects and to the energetic efficiency and characterized by the presence of new environments of learning and openness to the territory. Materials and Methods: The project proposals can be summarized in the different points: a) unit of the morphological-settlement solution and the articulation of the Civic Center, to be identified as new reference point in the city; b) adherence of the characters of the school to the landscape and visual connection with the castle; c) urban and architectural role of the system of the paths and connections, which surround and enter in the intervention area; d) extension and permeation between the natural and artificial environments assigning to the roof the task of increasing open spaces; e) accentuation of the public and multi-functional character of the different spaces, so that the school can be a place for meeting and comparison, in which it is possible to test new ways of teaching; f) use of different types of green open spaces as gardens, flowerbeds, educational vegetable gardens that change with the seasons, sporting fields, cycle-forgave routes among the green. Moreover, with respect to the structural aspects, seismic isolation at the basis of the building is proposed. This paper focuses mainly on the aspects related to energy and environmental sustainability and life cycle cost with reference to the case study design. The goal is to reduce the impact on the ecosystem, trying to make the school building organic to the existing environment. The containment of energy consumption for the air conditioning of the rooms is done through the isolation of the massive walls of the façade, covered with local stone (Irpinia breccia) and polycarbonate. Water-saving is obtained by reusing rainwater for the irrigation of vegetable gardens, vegetation and sanitary use. Results and Conclusion: The use of recycled materials and components is proposed: the Irpinia breccia covering the façade and, with different grain sizes, the external roofing and flooring; the polycarbonate; the polyester insulation; the outdoor furniture in recycled wood. In addition, dry reinforced concrete construction technologies are chosen. Definitively, the main concept is to have “a school in the park”
Experimentation on lime mortars reinforced with jute fibres: Mixture workability and mechanical strengths
No full textGiven the high number of masonry buildings on the Italian territory, which was scenario of numerous devastating earthquakes, it is clear the importance of restoration programs. Thanks to a renewed technique sensitivity towards sustainable interventions, it is evident that the recovery techniques to protect the historical heritage should be carried out with innovative green compound materials, such as mortars reinforced with natural fibres. In the current paper laboratory tests on lime mortars strengthened with raw jute fibres have been performed. Workability of the fibre-reinforced mixture has been assessed through shaking table tests and the mechanical resistances of standard specimens has been evaluated by bending and compression tests. Given the hygroscopic nature of jute, it has been identified the optimal water/lime ratio and the maximum water percentage absorbed by jute fibres. From analysis results it has been evaluated how the spreading of the mixture, which is indicative of the mortar consistency, changes with the water/lime ratio. From bending tests, it has been noticed an effective behaviour of fibres, which provide a cracks seam effect able to make more ductile the behaviour of investigated fibre-reinforced lime mortars. Finally, the results of compression tests have shown that the examined fibre-reinforced mortars can be effectively used as building products according to the actual Italian technical code NTC 2018
Experimental shear tests on tuff blocks triplets with hemp fibres reinforced lime mortar
No full textThis paper deals with experimental shear tests carried out on triplet samples made of tuff masonry blocks joined by lime mortars without and with hemp fibres. The experimental campaign has been performed at the laboratory of the Architecture Faculty of the University of Naples "Federico II". Three samples manufactured with hemp fibres, having a percentage of 1% with respect to the mortar weight, have been tested and their behaviour has been compared to that of the triplet made of the simple lime mortars linking tuff blocks. The comparison has been done in terms of both force-displacement and shear stress-deformation angle curves. In addition, the failure modes of fibre-reinforced mortar specimens have been individuated. The performance increase deriving from the use of hemp fibres in lime mortar has been evaluated through the increment of shear stress (force), drift angle (displacement) and shear modulus. The achieved results have proved the effectiveness of hemp fibres in manufacturing reinforced lime mortars able to join together top sustainable features with high mechanical characteristi
Comparative seismic evaluation between numerical analysis and Italian Guidelines on Cultural Heritage applied to the case study of a masonry building compound
No full textThe general objective of the work is to draw attention to the issue of seismic vulnerability analysis of masonry building compounds, which characterise most of the Italian historic towns. The study is, in particular, based on the analysis of an aggregated construction falling in the town of Arsita (Teramo, Italy) damaged after the 2009 L’Aquila earthquake. A comparison between the seismic verifications carried out by using the 3Muri commercial software and those deriving from the application of the Italian Guidelines on Cultural Heritage has been performed. The comparison has shown that Guidelines provide results on the safe side in predicting the seismic behaviour of the building compound under study. Further analyses should be performed aiming at suggesting some modifications of the simplified calculation method to better interpret the behaviour of building compounds under earthquake
Seroprevalence for toxoplasmosis in individuals living in North West Tuscany: access to Toxo-test in central Italy.
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