917 resultados para Façades of buildings
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Depuis le début du XXe siècle, les architectes et ingénieurs anticipaient et idéalisaient l'industrialisation des bâtiments afin que les pièces des édifices puissent être conçues dans une usine de montage pour procéder ensuite à leur assemblage sur les chantiers. À l'heure actuelle, grâce à des chercheurs dédiés, cette industrialisation s’est concrétisée et de nombreux systèmes de construction industrialisés existent dans le monde entier, adaptés à des environnements particuliers. Dans ce contexte, cette étude a pour but d'analyser comparativement plusieurs systèmes à l’aide de certains critères d’évaluation, et de sélectionner, deux systèmes préfabriqués les mieux adaptés aux habitations multifamiliales verticales destinées à une population de classe moyenne aisée de la ville de Recife, au Brésil. La méthodologie s’inspire de l'approche systémique, utilisée par White (1970) et Richard (2002), les deux se caractérisant par une démarche évaluative. Ainsi avons-nous choisi comme étant les plus appropriés, parce que répondant bien au cadre général de Recife, le système préusiné en panneaux DESCON ainsi que celui de poutres et colonnes, commercialisé par les entreprises T&A et PDI, les deux en béton.
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The information contained in this Annual Safety and Security Report is provided to new and prospective students and employees, as well as their families, and all current members of the campus community. It contains Public Safety Services and Programming,Building Threat and Vulnerability Assessment Program,Campus Security authorities, Annual Preparation of Crime Statistics, Disclosure of Crime Statistics, Daily Crime Log, How to Report a Crime, Suspicious Activity or Emergency, Silent Witness Program, Relationship with Local Authorities, Off-Campus Violations & Criminal Activity, Confidential Reporting, Timely Warning Procedures, Emergency Response, Notification and Evacuation Procedures Activation Authority, Available Communications Media, Emergency Notification Tests, Emergency Evacuation Procedures, Shelter-in-Place Procedures,Crime Prevention and Safety Awareness Programs, Emergency Telephones, Access To Facilities, Maintenance of Buildings and Grounds, Alcohol and Other Drugs, Domestic Violence, Dating Violence, Sexual Assault, and Stalking, Sex Offender Registration, Weapons on Campus, Referrals for Disciplinary Action, Crime Information: Definitions and Statistics, Uniform Crime Reporting Definitions, Reporting Areas. Crime Statistics
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Face aos padrões atuais de vida, em que despendemos a maior parte do nosso tempo no interior de edifícios, com um nível de conforto que ninguém quer abdicar, urge o desenvolvimento de tecnologias de climatização sustentáveis. Devido a uma combinação única de fatores, casas de baixo consumo de energia (e também casas passivas) em Portugal, são particularmente adequadas de explorar as vantagens da energia solar térmica, especialmente quando combinado com armazenamento sazonal de energia. No entanto nenhum exemplo documentado existe de como esta sinergia pode ser explorada com sucesso em Portugal, ilustrando assim o modo em que a necessidade de aquecimento pode ser colmatada de uma forma sustentável sem o uso de combustíveis fósseis. A energia solar é uma excelente alternativa de fonte de energia para aquecimento de edifícios. Um principal fator que limita a sua aplicação é que é uma fonte de energia com uma disponibilidade média de variação cíclica. O uso de armazenamento sazonal de energia pode reduzir substancialmente o custo do sistema solar que é capaz de fornecer até 100% das necessidades energéticas dos edifícios. Estes sistemas são projetados para armazenar a energia solar durante o verão e reter o calor armazenado para posterior utilização durante o inverno; Abstract: SEASONAL SOLAR THERMAL ENERGY STORAGE FOR LOW TEMPERATURE HEATING BUILDINGS. Given the current standards of living, where we spent most of our time inside buildings, with a level of Comfort that no one wants to give up, urges the development of sustainable climate control technologies. Due to a unique combination of factors, low energy (and also passive) houses in Portugal are particularly well suited to exploiting the advantages of solar thermal energy especially when combined with seasonal energy storage. However no documented example there of how this synergy can be exploited successfully in Portugal, illustrating the way in which the need for heating can be addressed in a sustainable manner without the use of fossil fuels. Solar energy is an important alternative energy source for heating applications. One main factor that limits its application is that it is an energy source with an average availability of cyclical variation. The use of seasonal thermal energy storage can substantially reduce the cost of solar energy systems that can supply up to 100% of buildings energy needs. Such systems are designed to collect solar energy during the summer and retain the stored heat for use during the winter.
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Resumo A partir da segunda metade do século XIX e XX assistiu-se à introdução de novos materiais, como o ferro fundido, o aço e o vidro, na remodelação ou construção de edifícios que procuravam dar resposta às novas necessidades de gestão urbana e de criação de espaços de lazer e sociabilidade. Nestas intervenções, que ficaram marcadas pela arquitectura do ferro, os engenheiros, grupo profissional detentor de competências técnicas que os habilitavam a trabalhar com estes materiais, tiveram um papel determinante. Na cidade de Évora a ligação entre a utilização de novos materiais e os engenheiros, é visível no papel que o Engenheiro Adriano Monteiro teve na reconversão do Palácio D. Manuel e na remodelação do edifício dos Paços do Concelho. Palavras-chave: Engenheiro, Arquitectura do Ferro, Évora, Palácio D. Manuel, Paços do Concelho Abstract From the second half of the nineteenth century onwards, there was the introduction of new materials, such as cast iron, steel and glass, in the remodeling or in the construction of buildings that sought to satisfy the new needs of urban management and the creation of leisure spaces and sociability. In these interventions that were marked by the iron architecture, the engineers, a professional group with technical skills that enabled them to work with these materials, played a decisive role. In the city of Évora this link between the utilization of new materials and engineers, is visible in the role that engineer Adriano Monteiro had in the conversion of the D. Manuel Palace and in the remodeling of the Town Hall building. Keywords: Engineers, Iron Architecture, Évora, D. Manuel Palace, City Hall
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Ciudad Cortés, en un pequeño pueblo localizado al sur del país, que ha sido afectado desde hace varios años por las inundaciones de los ríos Térraba y Balsar, se han estimado los costos de la infraestructura dañada en áreas de alto riesgo. De acuerdo con esta información, se han seleccionado ejemplos de construcciones, realizando cálculos económicos y relacionados con un mapa diseñado con curvas isográficas por cada metro. El mapa final muestra las áreas de riesgo y algunas estrategias para reducir las pérdidas de vidas y propiedades.Abstract:In a small town located in the southern part of the country, that is affected since many years by the floods Térraba and Balsar rivers, we try to estimate the costofthc infrastructure which isbuild in the areas of high risk. According with this information, we seLcct a sample of buildings, made a calculation of its econornic value and related them with a map designed with hipsographic contours each one-meter. We obtain at the end a map that shows risks areas and sorne strategies for reducing ¡oss of lives and properties.
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Experimental characterization and implementation of an integrated autoregressive model to predict the thermal performance of vegetal façades
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The study on the thermal performance of the air-conditioned buildings of the new research centre of the Brazilian Petroleum Company, in the tropical climate of Rio de Janeiro, was part of a bigger research and consultancy, project involving environmental issues. The architectural design was the subject of a national competition in 2004, encompassing over 100,000 m(2). According to the design brief, out of the 10 buildings of the new research centre, 7 have to be either completely or partially air-conditioned, due to specific occupation requirements. The challenge for better thermal performance was related to systems` energy efficiency, to the introduction of natural ventilation and to the notion of adaptive comfort, which were verified with the support of thermal dynamic simulations. At the early stages of the assessments, the potential for natural ventilation in the working spaces considering the mixed-mode strategy achieved 30% of occupation hours. However, the development of the design project led to fully air-conditioned working spaces, due to users` references regarding the conventional culture of the office environment. Nevertheless, the overall architectural approach in accordance to the climatic conditions still showed a contribution to the buildings` energy efficiency. (C) 2008 Elsevier B.V. All rights reserved.
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This chapter is concerned with acquisition and analysis of test data for determining whether or not the flexural strength of granite cladding under extreme conditions is adequate to assure that reliability requirements are satisfied.
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This paper studies the application of commercial biocides to old maritime pine timber structures (Pinus pinaster Ait.) that have previously been impregnated with other products. A method was developed in the laboratory to be used in situ to determine the impregnation depth achieved by a new generation biocide product applied to timber from an old building. This timber had once been treated with an unknown product difficult to characterize without extensive analysis. The test was initially developed in laboratory conditions and later tested on elements of the roof structure of an 18th century building. In both cases the results were promising and mutually consistent with penetration depths for some treatments reaching 2.0 cm. The application in situ proved the tests viability and simplicity of execution giving a clear indication on the feasibility of possible re-treatments.
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The Azores archipelago is a zone with a vast cultural heritage, presenting a building stock mainly constructed in traditional stone masonry. It is known that this type of construction exhibits poor behaviour under seismic excitations; however it is extensively used in seismic prone areas, such as this case. The 9th of July of 1998 earthquake was the last seismic event in the islands, leaving many traditional stone constructions severely damaged or totally destroyed. This scenario led to an effort by the local government of improving the seismic resistance of these constructions, with the application of several reinforcement techniques. This work aims to study some of the most used reinforcement schemes after the 1998 earthquake, and to assess their effectiveness in the mitigation of the construction’s seismic vulnerability. A brief evaluation of the cost versus benefit of these retrofitting techniques is also made, seeking to identify those that are most suitable for each building typology. Thus, it was sought to analyze the case of real structures with different geometrical and physical characteristics, by establishing a comparison between the seismic performance of reinforced and non-reinforced structures. The first section contains the analysis of a total of six reinforcement scenarios for each building chosen. Using the recorded 1998 earthquake accelerograms, a linear time-history analysis was performed for each reinforcement scenario. A comparison was then established between the maximum displacements, inter-storey drift and maximum stress obtained, in order to evaluate the global seismic response of each reinforced structure. In the second part of the work, the examination of the performance obtained in the previous section, in relation to the cost of implementing each reinforcement technique, allowed to draw conclusions concerning the viability of implementing each reinforcement method, based on the book value of the buildings in study.
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Dissertation submitted in partial fulfillment of the requirements for the Degree of Master of Science in Geospatial Technologies.
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Dissertation submitted in partial fulfillment of the requirements for the Degree of Master of Science in Geospatial Technologies.
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International Conference Durable Structures: from construction to rehabilitation. Lisbon, LNEC, 31 May-1 June 2012
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The main purpose of the research is to present a proposal for a methodology to support the rehabilitation project of renders of old buildings in Portugal. To achieve the objective it was considered essential to define the main types of participants and aspects to integrate the proposal. The research methodology consists in an inquiry presented to professional participants in rehabilitation, a market study of materials and products available in Portugal, the design of a methodology proposal and its application to a case study. The inquiry sample totals 24 answers from the targeted professionals. A sequence of relevant supporting procedures consists in the proposal, which aims to provide a supporting methodology to decide and project in this context and also to be tested with its application to the building. This proposal was applied to an old building with load-bearing stone masonry walls and air-lime based renders. It was concluded that the assessment of the building and external renderings’ condition, its diagnosis and of the supporting walls, the definition of intervention, the specification of materials to be used and performance requirements to comply, and also plans for conservation and periodic maintenance, are crucial. From the inquiry, compatibility between materials and complementary roles and points of view of different types of participants in rehabilitation must be highlighted. A proposal for a methodology to support the project could provide useful guidance particularly for architects and construction engineers, and improve the understanding of direct participants on site, therefore contributing for the correct implementation of intervention.
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The main purpose of the research is to present a proposal for a methodology to support the rehabilitation project of renders of old buildings. To achieve the objective it was considered essential to define the main types of participants and aspects to integrate the proposal. The research methodology consists in an inquiry presented to several professional participants in rehabilitation, a market study of materials and products available in Portugal, the design of a methodology proposal and its application to a case study. The inquiry sample totals 24 answers from the targeted professionals. A sequence of relevant supporting procedures consists in the proposal, which aims to provide a supporting methodology to decide and project in this context and also to be tested with its application to the building. This proposal was applied to an old building with load-bearing stone masonry walls and air-lime based renders. It was concluded that the assessment of the building and external renderings’ condition, its diagnosis and of the supporting walls, the definition of intervention, the specification of materials to be used and performance requirements to comply, and also plans for conservation and periodic maintenance, are crucial. From the inquiry, compatibility between materials and complementary roles and points of view of different types of participants in rehabilitation must be highlighted. A proposal for a methodology to support the project could provide useful guidance particularly for architects and construction engineers, and improve the understanding of direct participants on site, therefore contributing for the correct implementation of the intervention.