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A madeira é um dos principais materiais de construção usados atualmente. Utilizado desde pequenas construções até grandes obras de arte, seu uso, além de trazer algumas vantagens ambientais, proporciona vantagens econômicas em seu processo de pré-fabricação. Um dos sistemas mais amplamente utilizados nos processos de pré-fabricação industrial para unir elementos de madeira é a chapa metálica dentada (CMD). Seu uso implica num complexo processo de projeto e dimensionamento, mais precisamente na obtenção dos esforços resultantes nas linhas de ruptura das placas. Neste trabalho, são estudados cinco modelos da transferência de esforços em linhas de ruptura de ligação em CMD com a finalidade da obtenção dos esforços resultantes. Os esforços resultantes são obtidos nas linhas de ruptura de uma ligação estudo de caso e verificados de acordo com as prescrições dadas pelo Eurocódigo 5. São determinados os esforços mais críticos obtidos através de cada modelagem e são verificadas características de criticidade de cada modelo através da comparação entre os esforços críticos e os esforços obtidos em cada método. Apesar da ser possível realizar uma análise com a combinação crítica, seu uso não se mostra interessante na verificação dos critérios de dimensionamento.
Wood is one of the main building materials used today. Used from small buildings to large works of art, its use, besides bringing some environmental advantages, provides economic advantages in its prefabrication process. One of the most widely used systems in industrial prefabrication processes for joining wood elements is the punched metal plate fastener (CMD). Its use implies a complex design and sizing process, more precisely in obtaining the resulting efforts in the plate rupture lines. In this work, five models of stress transfer on break lines of CMD connections are studied in order to obtain the resulting stresses. The resulting stresses are obtained on the breaking lines of a case study connection and verified according to the requirements given by Eurocode 5. The most critical stresses obtained by each modeling are determined and the criticality characteristics of each model are verified by comparison. between the critical efforts and the efforts obtained in each method. Although it is possible to perform an analysis with the critical combination, its use is not interesting in checking the sizing criteria.
Wood is one of the main building materials used today. Used from small buildings to large works of art, its use, besides bringing some environmental advantages, provides economic advantages in its prefabrication process. One of the most widely used systems in industrial prefabrication processes for joining wood elements is the punched metal plate fastener (CMD). Its use implies a complex design and sizing process, more precisely in obtaining the resulting efforts in the plate rupture lines. In this work, five models of stress transfer on break lines of CMD connections are studied in order to obtain the resulting stresses. The resulting stresses are obtained on the breaking lines of a case study connection and verified according to the requirements given by Eurocode 5. The most critical stresses obtained by each modeling are determined and the criticality characteristics of each model are verified by comparison. between the critical efforts and the efforts obtained in each method. Although it is possible to perform an analysis with the critical combination, its use is not interesting in checking the sizing criteria.
Descrição
Mestrado de dupla diplomação com a UTFPR - Universidade Tecnológica Federal do Paraná
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Renewable energies Microgrid Pico-hydro systems Photovoltaic inverters