818 resultados para Asbestos in building


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No setor de energia elétrica, a área que se dedica ao estudo da inserção de novos parques geradores de energia no sistema é denominada planejamento da expansão da geração. Nesta área, as decisões de localização e instalação de novas usinas devem ser amplamente analisadas, a fim de se obter os diversos cenários proporcionados pelas alternativas geradas. Por uma série de fatores, o sistema de geração elétrico brasileiro, com predominância hidroelétrica, tende a ser gradualmente alterada pela inserção de usinas termoelétricas (UTEs). O problema de localização de UTEs envolve um grande número de variáveis através do qual deve ser possível analisar a importância e contribuição de cada uma. O objetivo geral deste trabalho é o desenvolvimento de um modelo de localização de usinas termoelétricas, aqui denominado SIGTE (Sistema de Informação Geográfica para Geração Termoelétrica), o qual integra as funcionalidades das ferramentas SIGs (Sistemas de Informação Geográfica) e dos métodos de decisão multicritério. A partir de uma visão global da área estudada, as componentes espaciais do problema (localização dos municípios, tipos de transporte, linhas de transmissão de diferentes tensões, áreas de preservação ambiental, etc.) podem ter uma representação mais próxima da realidade e critérios ambientais podem ser incluídos na análise. Além disso, o SIGTE permite a inserção de novas variáveis de decisão sem prejuízo da abordagem. O modelo desenvolvido foi aplicado para a realidade do Estado de São Paulo, mas deixando claro a viabilidade de uso do modelo para outro sistema ou região, com a devida atualização dos bancos de dados correspondentes. Este modelo é designado para auxiliar empreendedores que venham a ter interesse em construir uma usina ou órgãos governamentais que possuem a função de avaliar e deferir ou não a licença de instalação e operação de usinas.

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The use of sustainable materials is becoming a common practice for noise abatement in building and civil engineering industries. In this context, many applications have been found for porous concrete made from lightweight aggregates. This work investigates the acoustic properties of porous concrete made from arlite and vermiculite lightweight aggregates. These natural resources can still be regarded as sustainable since they can be recycled and do not generate environmentally hazardous waste. The experimental basis used consists of different type specimens whose acoustic performance is assessed in an impedance tube. Additionally, a simple theoretical model for granular porous media, based on parameters measurable with basic experimental procedures, is adopted to predict the acoustic properties of the prepared mixes. The theoretical predictions compare well with the absorption measurements. Preliminary results show the good absorption capability of these materials, making them a promising alternative to traditional porous concrete solutions.

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The increase of building pathologies related to the use of stone materials and the use of ventilated stone veneers, requires the reformulation of design concepts in building façades and also the reformulation of the architectural project. The aim of this paper is to identify, analyze and evaluate synthetically building pathologies in stone ventilated façades in order to obtain the main technical conditions to be considered in the architectural design, by interpreting its mechanical behavior and capabilities to prevent such pathologies and to ensure the proper features during the building lifetime. The methodology is based on both laboratory stone tests and in situ tests about construction systems, by analyzing physical and mechanical behavior of the outer layer in relation to other building requirements. The results imply the need of proper sizing, specific quality control and practical application of calculation methods, to control high concentration pressures in ventilated façades by reaching appropriate project solutions. In conclusion, the research about different pathologies of stone ventilated façades, the study of their mechanical behavior, their anchorage and their connection with their constructive aspects, will help to improve the construction quality of the stone ventilated façade in buildings and to enhance the use of natural stone in modern architecture.

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La condición tridimensional de la construcción edificatoria precisa del uso del dibujo en 3D como la mejor herramienta de proyecto y transmisión de conocimientos técnicos y formales. El objetivo de esta comunicación es mostrar la aplicación de la expresión gráfica en 3D en un análisis histórico sobre la evolución de la envolvente industrializada en arquitectura, identificando sus principales condicionantes técnicos y constructivos. El estudio compara la evolución del uso de sistemas constructivos industrializados mediante un análisis gráfico de las soluciones constructivas más destacables. La metodología empleada se basa en la identificación y estudio de determinados sistemas constructivos industrializados compuestos por materiales ligeros así como de obras de arquitectura representativas por su influencia en la evolución de la envolvente arquitectónica en la segunda mitad del siglo XX. La representación gráfica en 3D ayuda a comparar las obras analizadas desde aspectos tecnológicos y formales, constatándose la utilidad del dibujo asistido por ordenador en el análisis constructivo realizado. En conclusión, el uso del dibujo arquitectónico en 3D contribuye, por la mejor comprensión de las características espaciales de las soluciones constructivas, al análisis de las propiedades materiales y funcionales de los sistemas constructivos industrializados y su aplicación al diseño arquitectónico, ayudando a perfeccionar su conocimiento e incrementando la calidad constructiva y compromiso social de las propuestas arquitectónicas.

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En este estudio se presenta y analiza, proyectándola en su contexto, la producción de vivienda protegida acometida por la Obra Sindical del Hogar en la ciudad de Albacete, desde la creación de este organismo hasta su disolución, es decir, a lo largo de la dictadura franquista. La investigación viene, por un lado, a llenar el vacío que, en la bibliografía de referencia, existía, habida cuenta de que se trata de una arquitectura en su mayoría modesta, generalmente mal conservada, periférica y, en ocasiones, injustamente marginada que apenas ha interesado ni a los eruditos ni a los críticos. Por otro lado, el trabajo se alinea con el interés disciplinar que, desde hace ya bastante tiempo, despierta en el panorama nacional la vivienda social, tema clave tanto en el quehacer profesional de los arquitectos como en el conocimiento del devenir de la historia de la arquitectura moderna española y sus relaciones, intercambios e influencias con el ámbito internacional. Así, se estudian y documentan seis promociones que abarcan desde la escala del barrio (Barrio Hogar Nacional Sindicalista, al oeste del casco urbano), hasta la actuación puntual en un solar (Gabriel Ciscar, al norte), pasando por actuaciones que juegan con varios bloques y su composición (grupos San Juan Bautista, Emperador Carlos V o Lope de Vega, al sur), culminando con la construcción de un nuevo barrio (Hermanos Falcó), al dictado tanto de los aires que respira el urbanismo europeo (1ª fase), como de la entrega sin reservas a la especulación inmobiliaria (2ª fase, no realizada).

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This paper presents a numerical approach with finite element method in order to predict both the behaviour and the performance of the wooden slabs with rectangular perforations under fire exposure. These typical constructions have good sound absorption, thermal insulation and relevant architectonic features, they are used in many civil engineering applications. These slabs are normally installed at lower level in building constructions essentially due to an easy maintenance requisite. Depending on the installation requirement, the perforated wooden slabs could have an additional insulation material inside the cavities. The proposed numerical model could be applied to different design constructive slab solutions. For this purpose a 3D numerical simulation was conducted with particular attention to the wood thermal properties variation with temperature. The numerical results were compared with those obtained experimentally in laboratory, for two wooden slabs. The fire resistance (performance criteria related to the insulation (I) and integrity (E)) was evaluated, as well as the effect of rectangular perforations into the residual cross section of the slab. This study was conducted in accordance with European Standard EN 1365-2 and using a fire resistance furnace which complies the requirements of EN 1363-1 in the experimental test.

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Relatório de estágio de mestrado, Educação (Área de especialidade em Administração Educacional), Universidade de Lisboa, Instituto de Educação, 2016

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In examining the long-awaited opinion given January 22nd by the CJEU in the case concerning the European Securities and Markets Authority (ESMA), this Commentary argues that the ruling is important for the insights it yields into the modern understanding of the Meroni non-delegation doctrine. The authors, Jacques Pelkmans and Marta Simoncini, aim to extract the potential implications of the ESMA case for the place and significance of the Meroni doctrine in building up the single market. They demonstrate that the ESMA case is yet another manifestation of a slow process of “mellowing Meroni’, which is a critical condition for a new single market strategy aiming to end the remaining fragmentation of the single market – not only in financial markets but also in network industries – and to ensure its ‘proper functioning’.

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The EU’s Central Asia Strategy approaches its fourth anniversary. In that time the EU has placed its relationship with Central Asia on a more structured footing. Although progress has been made in building dialogue and in furthering engagement, the strategy’s limitations are increasingly obvious. This brief argues that the driving force of the EU engagement should be based on a closer link between security and development. Engagement in this broad field should be underpinned by a values based approach that seeks to promote more explicitly reform on human rights, rule of law, governance and democracy. The momentous changes sweeping across the Middle East and North Africa have demonstrated that even the most apparently durable authoritarian regimes are vulnerable to sudden political shocks.

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From the Introduction. In 2012, China approached the countries of Central-Eastern Europe (CEE) with a proposal concerning regional cooperation in the ‘16+1’ formula. According to Chinese analysts, the rationale behind this breakthrough decision was Beijing’s acknowledgment of the growing importance of the region’s states within the European Union as well as a partial elimination of the ideological differences which had hamstrung cooperation in previous years. It seems that the eurozone crisis may be perceived as the reason for the CEE states’ increased interest in developing their cooperation with China. These circumstances have opened a ‘window of opportunity’ which Beijing has decided to exploit to create a kind of bridgehead in the region which it could later use in its further economic expansion in Europe. Apart from opening the CEE region up for investments, the ‘16+1’ format was intended to facilitate the shaping of relations between China and the EU and to become a tool in building a positive image for China. Chinese experts agree that after three years of functioning, the ‘16+1’ regional cooperation format has helped Beijing achieve its goals only to a limited extent. The major obstacles have included: the immense diversification of the region, barriers related to EU law, insufficient expertise on the part of Chinese companies, the asymmetry of economic needs on both sides, and no willingness within the region itself to develop cooperation. Regardless of the limited effectiveness of activities carried out so far, China has continued its ‘16+1’ initiative. This continuation and the progressing institutionalisation of cooperation in the ‘16+1’ format have often seemed superficial. China has been using this multi-party formula to improve its long-term bilateral relations with selected states in the region and thereby to create a basis for Beijing’s political and economic presence in Central-Eastern Europe.

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The ongoing consultation process on the European Union Global Strategy (EUGS) presents an occasion for the European Union (EU) to redress the European Security Strategy’s (ESS) shortcomings and update its stance on multilateralism. As rule-based multilateralism remains deeply entrenched in the Union’s DNA, the EUGS is unlikely to represent ground-breaking innovations as to how the EU should act in international affairs. The key challenge in respect of the EU’s multilateralism is twofold. The first challenge lies in setting out clear priorities for the EU’s multilateral action to be pursued collectively by the member states; and the second in determining the form of multilateralism that would best suit the promotion of the priorities concerned. In this collection of six essays, policy analysts and academics are presented with the question: Over a five year horizon, what do you think should be the focus of the EU’s multilateral agenda? The answers dwell on the EU playing a proactive role in relation to emerging powers especially China, and Latin America as a whole; furthering the EU’s soft power through ‘science diplomacy’; and EU leadership in building a global energy and climate community, and counter terrorism measures.

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"July 1997"--Vol. 5.

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John Scott, architect. There is a discrepancy in building date. Sources cite both 1902 and 1896. Barbour Gymnasium (for women) was attached to the north side of the Waterman Gymnasium.

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John Scott, architect. There is a discrepancy in building date. Sources cite both 1902 and 1896. Barbour Gymnasium (for women) was attached to the north side of the Waterman Gymnasium.

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John Scott, architect. There is a discrepancy in building date. Sources cite both 1902 and 1896. Barbour Gymnasium (for women) was attached to the north side of the Waterman Gymnasium. On verso: Ivory Photo. Ann Arbor. Correctives-4. Department of Physical Education for Women, Barbour Gymnasium, University of Michigan.