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Comparação de elementos estruturais em aço e madeira de um pavilhão industrial
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Abstract(s)
Nos últimos anos, tem havido uma tendência crescente das empresas para construírem pavilhões
industriais. É comum os pavilhões industriais serem projetados, deixando um pouco de parte a estética.
Por este facto, a estrutura fica na sua globalidade a cargo do engenheiro projetista, tendo este a
responsabilidade de encontrar uma forma de minimizar os custos desta, sendo que para isso tem à sua
disposição inúmeras soluções estruturais possíveis para o mesmo problema.
Com recurso ao software de cálculo automático Robot Structural Analysis® e com base nos Eurocódigos
estruturais NP EN 1995-1-1:2022 e NP EN 1993-1-1:2010, foi efetuada a modelação e dimensionamento
de elementos estruturais isolados, nomeadamente pórtico e treliça, em aço e madeira, constituintes de
um pavilhão industrial com as dimensões 21,19x32,05x9,20 m, localizado na Maia, que sofreu obras de
ampliação. Também foi realizado o dimensionamento de madres de aço com o auxílio do software
MaxBox da empresa Constalica, e de madres de madeira com o software Microsoft Excel.
Para a análise comparativa das diferentes soluções estruturais elegeram-se as variáveis peso|volume e
área de pintura. Para a variável peso, os elementos estruturais isolados em aço, treliça na direção X,
treliça na direção Y e pórtico na direção X têm um peso superior comparativamente aos mesmos
elementos em madeira, 26,50%, 41% e 91% respetivamente. Relativamente às madres ocorre o
contrário, isto é, os elementos em madeira têm um peso sensivelmente 38% superior aos elementos em
aço. Para a variável área de pintura, os elementos estruturais isolados em madeira, treliça na direção X e
treliça na direção Y têm uma área de pintura superior comparativamente aos mesmos elementos em
aço, 26% e 51% respetivamente.
In recent years, there has been a growing trend for companies to build industrial pavilions. It is common for industrial pavilions to be designed leaving aesthetics aside. As a result, the structure as a whole is the responsibility of the design engineer, who is responsible for minimize costs, and for this he has at his disposal numerous structural solutions to the same problem. Using the automatic calculation software Robot Structural Analysis® and based on the structural Eurocodes NP EN 1995-1-1:2022 and NP EN 1993-1-1:2010, the modeling and design of isolated structural elements was perfomed, namely frames, trusses, in different structural materials, specifically steel and wood, of an industrial pavilion with the dimensions 84x30x9.20 m, located in Maia, which underwent expansion works. It was also carried out the design of steel purlins with the Constalica's MaxBox software, and of wooden purlins with the Microsoft Excel software. The variables weight|volume and painting area were chosen for the comparative analysis of the different structural solutions. For the weight variable , the isolated structural elements in steel, truss in the X direction, truss in the Y direction and frame in the X direction have a higher weight compared to the same wooden elements, 26,50%, 41% and 91% respectively. Regarding purlins, the wooden elements weight approximately 38% more than the steel elements. For the painting area variable, the isolated structural elements in wood, truss in the X direction and truss in the Y direction have a higher painting area compared to the same steel elements, 26% and 51% respectively.
In recent years, there has been a growing trend for companies to build industrial pavilions. It is common for industrial pavilions to be designed leaving aesthetics aside. As a result, the structure as a whole is the responsibility of the design engineer, who is responsible for minimize costs, and for this he has at his disposal numerous structural solutions to the same problem. Using the automatic calculation software Robot Structural Analysis® and based on the structural Eurocodes NP EN 1995-1-1:2022 and NP EN 1993-1-1:2010, the modeling and design of isolated structural elements was perfomed, namely frames, trusses, in different structural materials, specifically steel and wood, of an industrial pavilion with the dimensions 84x30x9.20 m, located in Maia, which underwent expansion works. It was also carried out the design of steel purlins with the Constalica's MaxBox software, and of wooden purlins with the Microsoft Excel software. The variables weight|volume and painting area were chosen for the comparative analysis of the different structural solutions. For the weight variable , the isolated structural elements in steel, truss in the X direction, truss in the Y direction and frame in the X direction have a higher weight compared to the same wooden elements, 26,50%, 41% and 91% respectively. Regarding purlins, the wooden elements weight approximately 38% more than the steel elements. For the painting area variable, the isolated structural elements in wood, truss in the X direction and truss in the Y direction have a higher painting area compared to the same steel elements, 26% and 51% respectively.
Description
Keywords
EC5 EC3 Análise estrutural Pavilhões industriais Structural analysis Industrial pavillions