1,720,994 research outputs found

    Mitigation strategies for reduction of embodied energy and carbon, in the construction systems of contemporary quality architecture

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    The criticality related to the consumption of operational energy and related greenhouse gas (GHG) emissions of existing buildings is clearly decreasing in new buildings due to the strategies tested and applied in recent years in the energy retrofit sector. Recently, studies have been focusing on strategies to reduce environmental impacts related to the entire life cycle of the building organism, with reference to the reduction of embodied energy (and related greenhouse gas emissions) in building materials. As part of EEA's European EBC project, Annex 57, a wide range of case studies have been promoted with the aim of identifying design strategies that can reduce the embodied energy and related greenhouse gas emissions of buildings. The aim of this paper is to investigate the most common construction systems in the construction industry (concrete, steel, wood) through the analysis of three contemporary architectural works, with the aim of identifying the predisposition for environmental sustainability of each technological system, thus guiding the operators in the sector towards design choices more compatible with the environmental requirements recommended by European legislation

    Proposal for a new housing model for the inland areas regeneration. The BioVillage 4.0

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    In addition to cities and metropolises, the European territory is made up of many small settlements, custodians of a vast material and immaterial heritage, very often of great historical, cultural and environmental value. In recent decades, these realities have undergone a significant demographic decline induced by the new requirements of contemporary life: the lack of job opportunities, inadequate infrastructure, and poor essential services have encouraged the population to move to the cities, starting a process of social, cultural and economic marginalisation of rural areas. However, the current environmental crisis and the problems of urban densification are encouraging the birth of a “new perspective” that considers the enhancement of inland areas and small towns as a possible driver for the sustainable development of territories and the definition of a new city-countryside relationship. Therefore, recovering inland areas is becoming an increasingly important necessity, which is leading to the drafting of many plans and interventions aimed at reversing the demographic decline trend. Among the most representative projects, two European strategies are based on the Ecovillage and Smart Villages models. Both models emphasise the role of local communities in deciding what action should be carried out to valorise small towns. However, the modalities and nature of the interventions and their methodological approach are substantially different. In view of the above, and starting from the analysis of some emblematic case studies, the paper investigates the peculiarities of the Ecovillage and Smart Villages models, with the aim of highlighting their main criticalities and potentials. From the comparison between the two strategies, a new model for the recovery and valorisation of small towns is proposed, which is called BioVillage 4.0

    HIGH-ALTITUDE CONSTRUCTIONS: SUSPENDED SCAFFOLDINGS AND INNOVATIVE PRESIDES

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    In the construction industry, temporary works, especially fixed metal scaffolding, represent the type of temporary structure necessary for the construction of the work and to ensure preventive actions aimed at guaranteeing the safety of workers in the workplace. All this requires a technical-organizational process able to guarantee careful planning, problem solving, content processing and an approach able to reduce the risks present in the construction process. In this context the following work is born with the intent of deepening the study of special high-altitude scaffolding which require particular requirements and great ingenuity for what concerns the design and organization. The goal is to define a valid design approach that aims to combine structural aspects with those of operator safety, which includes: on the one hand, the design of the scaffolding in operating conditions and in the assembly / dismantling phases; on the other hand to its correct use through the use of effective tools for the training of employees, monitoring and control in progress. The aim was first pursued through a preliminary investigation of the regulatory aspects, then an analysis of the knowledge and characteristics of the different types of scaffolding, an in-depth analysis of special applications for work with particular constraints, the design of a real scaffolding case suspended to high altitude through an FEM analysis, and finally, the identification of hypotheses of implementation and improvement of the control system for a correct assembly and use of the scaffolding through a new technological scenario

    Strategie di riqualificazione integrata per il riuso di fabbriche dismesse. Due casi-studio nel distretto conciario di Solofra in Campania (Italia).

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    The abandoned industrial buildings represent a significant part of the building heritage, both in Italy and worldwide. Many of these abandoned buildings, although heterogeneous due to their typological-constructive characteristics, generally have good potential for recovery and reuse. However, adapting to new functions requires some considerations on numerous aspects. They include both urban and territorial analysis as well as investigations related to the problems of the single artefact. The aim of this paper is the definition of some intervention methods and strategies, which will be explained through two case studies of former tanneries in the industrial district of Solofra, located in Campania

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
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