1,720,985 research outputs found

    Plastic is seen as a resource for architecture and not as a waste for the environment

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    The research work that is being carried out foresees being able to apply and use a material that in this historical moment it turns out to be an environmental problem that does not it involves specific and well-defined territorial locations but it is compromising health and nature of the whole earth globe, compromising not only human health but also compromising the state of health of flora, fauna and seabed and its inhabitants ultimately the topic in question turns out to be "the plastic". For years until today the plastic has always been identified as a waste from dispose of all the advantages and recycling capacities that can be obtained, and our work research consists of re-evaluating this waste in a fundamental product "as raw material" is for architecture and both for construction by giving it an important role and as a material for construction from a structural and non-structural point of view both as an ornamental and furnishing material. Previously, research work has already been carried out on the subject of plastics such as the one to build near the Department Luigi Vanvitelli of Aversa, the project of a shelter for the bus stop, structurally efficient and modern, contemporary and both the use and recovery of worn tires in order to replace the gravel as an inert of the concrete having as a result the realization of the covering layer of the slopes airport runway. This research work on plastic is raising a considerable number of European scholars, academics and intellectuals as recently happened in the Netherlands where they are aiming to create works and infrastructures with recycled plastic, creating a runway first cycle from the waste of bottles, bottle tops etc. The objective as anticipated in the title of the article is not only to make works with recycled plastic material, but to make a material that today appears to be a burden and an environmental problem, turning it into a big one resource and to entrust him with a much wider employment in architecture and in construction but above all to experience the use in the structural field

    The out of plane behaviour of masonry infilled frames

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    The great interest about out of plane behavior of masonry infill walls has recently increased since it is a key point in the seismic modelling of framed structures. Their contribute to the whole seismic resistance of a framed building cannot be skipped. After a review of the literature on the subject, this paper presents a trilinear constitutive model for the out of plane behavior of masonry infills based on the tensile strength of the constituents. Comparisons with literature model are provided and the identification of the model is based on experimental tests

    Palazzo Ducale in Parete: remarks on code provisions

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    The masonry have been studied with idealistic model, for historical masonry of a centuries-old building, it is really difficult to apply the above said simplifications, the intriguing rules deduced from laboratory studies and also the numerical patterns are more and more sophisticated. Below are some considerations made in reference to a specific case study: Palazzo Ducale in Parete, of Caserta province. In this palace, it was quite impossible to imagine a model which could faithfully reflect the masonry history of over a thousand years. Some extremely simplified approaches are able to provide information about the capacity of the structure. Furthermore, results from nonlinear static analyses are presented. Indications on the congruence between codes rules and results from numerical analyses performed according to the Italian seismic code are supplied. The results show that generally imposing the best approach for the generic case could not be satisfying for the particular one

    Forest management for urban environment-nature connection

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    In the evolutionary history of the human species, the time spent living in industrialised cities much less than that spent in almost natural contexts. The concept of promoting the so-called regenerative environments is spreading. These are types of places that promote the well-being of individuals, groups, and communities. The wild natural environment itself is the proper regenerative environment. But people who are not used to spending time in nature cannot have the direct ability to come into contact with it. So, promoting the presence of natural elements urban contexts would be desirable. The first step is choosing wood as the primary building material. It constitutes a viable answer accepted by the scientific community to the issue of sustainable building as a renewable resource with the ability to store CO2. However, the use of this resource depends on the study of proper forest management, which is the only guarantee for obtaining a certified product to use in construction. South Italy has no managed forest areas, so it cannot have locally certified woods that are usable for structural purposes. In this scenario, this study aims at the dual objective of: (i) analyse and promote the short wood supply chain in South Italy (ii) propose an experimental case study, Euterpe (c), to be realised with wood species of South Italy. Euterpe (c) is an island/musical classroom, acoustically adequate and entirely autonomous, usable not only for teaching music in high schools but also to offer the opportunity to listen to natural sounds, recorded even during direct forest therapy practices. It is becoming, in effect, an indirect driving force to approach such practices

    STRENGTHENING OF MASONRY ARCHES: THE "SANTA MARIA DELLE GRAZIE" CHURCH

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    The "Santa Maria delle Grazie" church is a monumental masonry complex on the isle of Ischia. The monument is on a mountaintop near the panoramic road leading from the city centre to the mouth of the Arso crater. The structural restoration, still ongoing, involves every part of the building to improve the seismic response. The main intervents concern the reinforcement of the walls, the reconstruction of the timber roof, the slabs and the collapsed portions and the strengthening of the intrados of the vaults and arches with the FRCM system. Two of the four facades, the South and the Est, are buttressed by a system of arches. The south arcades appear more vulnerable since they insist on a slope. The arcades' reinforcement work involves applying a grid of PBO tapes in a cementitious matrix on the intrados. The purpose is to compensate for the lack of tensile strength of the masonry apparatus by counteracting the opening of plastic hinges. PBO (Polyparafenilenbenzobisoxazole) is a synthetic fibre used in structural reinforcement systems with a cementitious matrix. Compared to the most commonly used composite materials, it possesses remarkable mechanical characteristics and has high chemical compatibility with inorganic compounds. It is often used for reinforcing masonry buildings thanks to the high compatibility of the matrix with which it is applied to the masonry support. The purpose of this research is to develop a simplified modelling strategy for FRCM-reinforced curved masonry structures able to use by technicians with a sufficiently accurate description of the mechanical behaviour of arches reinforced with FRCM composites
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