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Projeto de estruturas em vidro
| Name: | Description: | Size: | Format: | |
|---|---|---|---|---|
| 4.39 MB | Adobe PDF |
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Advisor(s)
Abstract(s)
Nos dias de hoje começam a surgir nos mais diversos tipos de construções alguns casos de
aplicação de vidro em que toma uma função estrutural. Embora a sua aplicação atualmente não seja tão
extensiva, acredita-se que isso se deva ao facto de ser um material que apresenta alguma fragilidade, e
a investigação desenvolvida e as normas disponíveis são ainda escassas, comparativamente aos materiais
de construção mais correntes, como o betão e o aço.
O vidro é um material isotrópico, possui um comportamento elástico, é resistente quando se
encontra no estado sólido, mas é extremamente frágil, tal como já mencionado. Pode ser transparente,
translúcido ou brilhante, dependendo das quantidades dos seus constituintes básicos.
Neste sentido, nesta dissertação apresenta-se o material propriamente dito, em termos das suas
propriedades químicas, físicas, mecânicas e térmicas. Acrescenta-se ainda, os diversos tipos de vidros
que é possível encontrar no mercado, bem como os sistemas de fixação utilizados nas suas aplicações.
É possível aferir que embora a aplicação do vidro com função estrutural não seja tão extensiva, existem
alguns exemplos de aplicação no estrangeiro, em Portugal Continental e no Arquipélago da Madeira.
O vidro é um material que tem vindo a ser estudado nas últimas décadas como um material a ser
aplicado na construção com função estrutural. Como tal, nesta dissertação são apresentados alguns dos
resultados obtidos em diversos estudos. Além disso, são abordadas algumas normas destinadas ao
dimensionamento de elementos em vidro, nomeadamente EN 16612 e CNR-DT 210.
Posteriormente, são propostos tabelas e gráficos de pré-dimensionamento que visam auxiliar a
escolha, em termos de espessuras e dimensões de elementos estruturais, como vigas, pilares, glass fins,
painéis aplicados em pavimentos, coberturas e fachadas.
Por fim, procede-se à aplicação das tabelas e gráficos mencionados anteriormente a um caso de
estudo. Este consiste numa estrutura totalmente em vidro, com dois pisos, onde os elementos estruturais
(vigas, pilares, glass fins, pisos e fachadas) são dimensionados de acordo com as normas adotadas para
o estudo.
Nowadays, in the most diverse types of constructions, some cases of application of glass in which it takes on a structural function begin to appear. Although its application is currently not so extensive, it is believed that this is because it is a material that presents some brittleness, and the research carried out and the standards available are still scarce, compared to the most common construction materials, such as the concrete and steel. Glass is an isotropic material, it has an elastic behavior, it is resistant when it is in the solid state, but it is extremely brittle, as already mentioned. It can be transparent, translucent or shiny, it depends on the amounts of its basic constituents. This dissertation intends to present the material itself, in terms of chemical, physical, mechanical, and thermal properties. There are several types of glass that can be found on the market, as well as the fixing systems used in their applications. Even if the application of glass with a structural function is not so extensive, there are some examples in Portugal and in the Madeira Island. The glass is a material that has been studied in recent decades as a material to be applied in construction with a structural function. Thus, it is possible to check some examples of studies in this dissertation. Some standards for the design of glass elements are addressed, namely EN 16612 and CNR DT 210. Tables and graphs are also proposed that aim to help the choice, in terms of thickness and dimensions of structural elements, such as beams, columns, glass fins, panels applied to floors, roofs and facades. Finally, the above mentioned tables and graphs are applied to a case study. case study. It has an all-glass structure, with two floors, where the structural elements (beams, columns, glass fins, floors and facades) are dimensioned in accordance with the standards adopted for the study.
Nowadays, in the most diverse types of constructions, some cases of application of glass in which it takes on a structural function begin to appear. Although its application is currently not so extensive, it is believed that this is because it is a material that presents some brittleness, and the research carried out and the standards available are still scarce, compared to the most common construction materials, such as the concrete and steel. Glass is an isotropic material, it has an elastic behavior, it is resistant when it is in the solid state, but it is extremely brittle, as already mentioned. It can be transparent, translucent or shiny, it depends on the amounts of its basic constituents. This dissertation intends to present the material itself, in terms of chemical, physical, mechanical, and thermal properties. There are several types of glass that can be found on the market, as well as the fixing systems used in their applications. Even if the application of glass with a structural function is not so extensive, there are some examples in Portugal and in the Madeira Island. The glass is a material that has been studied in recent decades as a material to be applied in construction with a structural function. Thus, it is possible to check some examples of studies in this dissertation. Some standards for the design of glass elements are addressed, namely EN 16612 and CNR DT 210. Tables and graphs are also proposed that aim to help the choice, in terms of thickness and dimensions of structural elements, such as beams, columns, glass fins, panels applied to floors, roofs and facades. Finally, the above mentioned tables and graphs are applied to a case study. case study. It has an all-glass structure, with two floors, where the structural elements (beams, columns, glass fins, floors and facades) are dimensioned in accordance with the standards adopted for the study.
Description
Keywords
Vidro estrutural EN16612 CNR-DT 210 Dimensionamento Vidro laminado Tabelas de dimensionamento Caso de estudo Structural glass Design Laminated glass Design tables Case study Engenharia Civil . Faculdade de Ciências Exatas e da Engenharia