Estudo do dimensionamento de um pavilhão industrial com estrutura em aço
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Data
2018-10-10
Autores
Orientador
Schmitz, Rebeca Jéssica
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Resumo
As edificações com estrutura em aço são de grande importância no cenário da construção civil e vem sendo muito usadas em pavilhões industriais. Podem apresentar diversas vantagens, principalmente quando utilizados perfis laminados que, por conta da sua fabricação industrial, proporcionam ao projetista um
conhecimento mais amplo de algumas propriedades específicas do material. Devido à importância deste tema, o presente trabalho se propôs a realizar um estudo sobre o dimensionamento do pórtico principal da estrutura de aço de uma edificação hipotética, no estado limite último, sob o ponto de vista das recomendações de duas diferentes normas. As normas brasileiras NBR 8800 (ABNT, 2008) e europeia
Eurocódigo 3 (COMITÊ EUROPEU DE NORMAS TÉCNICAS, 2010) foram comparadas de modo que os resultados encontrados proporcionassem uma análise dos perfis com maior eficiência e também, do peso total da estrutura considerada para cada uma delas. Para tanto, os pilares e vigas da edificação foram projetados
de maneira que tivessem a capacidade para suportar as cargas atuantes na edificação, sob as mais diversas combinações com possibilidades de ocorrência. Os efeitos de vento atuantes na edificação foram determinados de acordo com as suas características aerodinâmicas, assim como a localização para onde esta estava sendo projetada; considerando os vários sentidos de atuação e as diversas combinações com possibilidade de ocorrência. Desta forma, foram verificados os perfis que atendessem as condições de segurança tanto para as vigas quanto para os pilares, buscando no dimensionamento sempre a escolha das menores seções possíveis para proporcionar a garantia de viabilidade econômica do projeto. Na norma brasileira o perfil escolhido para os pilares foi o W360x72 enquanto que para as vigas foi W360x44. Já para a norma europeia o perfil dos pilares foi o IPE 330x49,1 enquanto que para as vigas foi o IPE 300x42,4. Com isso o dimensionamento do pórtico principal da edificação para a norma brasileira teve um peso total de 2.155,44 kg, o que representou um resultado mais conservador em 24% em relação ao dimensionamento sugerido pela norma europeia, que por sua vez totalizou um peso de 1.640,57 kg.
The buildings with steel structure are of great importance in the civil construction scenario and have been used extensively in industrial sheds. They can present several advantages, especially when using rolled profiles that, because of their industrial manufacture, give the designer a more complete knowledge of some specific properties of the material. Due to the importance of this theme, the present work has proposed to realize a study about the dimensioning of the principal frame of the steel structure of a hypothetical building, in ultimate last limit state, from the point of view of the recommendations of two different norms. The standards Brazilian NBR 8800 (ABNT, 2008) and European Eurocode 3 (EUROPEAN TECHNICAL STANDARDS COMMITTEE, 2010) were compared in such a way that the results found gave an analysis of the profiles with greater efficiency and also of the total weight of the structure considered for each one of them. In order to do so, the pillars and beams of the building were designed in such a way as to have the capacity to withstand the loads acting on the building, under the most diverse combinations with possibilities of occurrence. The wind effects in the building were determined according to their aerodynamic characteristics, as well as the location to where it was being projected; considering the various senses of action and the various combinations with possibility of occurrence. In this way, the profiles that met the safety conditions for both the beams and the pillars were verified, always scaling the choice of the smallest possible areas to provide the guarantee of economic feasibility of the project. In the Brazilian standard the profile chosen for the pillars was the W360x72 while for the beams it was W360x44. For the European standard the profile of the pillars was the IPE 330x49,1 while for the beams was the IPE 300x42,4. Thus, the design of the building structure for the Brazilian standard had a total weight of 2.155,44 kg, which represented a more conservative result in 24% in relation to the design suggested by the European standard, which in turn totaled a weight of 1.640,57 kg.
The buildings with steel structure are of great importance in the civil construction scenario and have been used extensively in industrial sheds. They can present several advantages, especially when using rolled profiles that, because of their industrial manufacture, give the designer a more complete knowledge of some specific properties of the material. Due to the importance of this theme, the present work has proposed to realize a study about the dimensioning of the principal frame of the steel structure of a hypothetical building, in ultimate last limit state, from the point of view of the recommendations of two different norms. The standards Brazilian NBR 8800 (ABNT, 2008) and European Eurocode 3 (EUROPEAN TECHNICAL STANDARDS COMMITTEE, 2010) were compared in such a way that the results found gave an analysis of the profiles with greater efficiency and also of the total weight of the structure considered for each one of them. In order to do so, the pillars and beams of the building were designed in such a way as to have the capacity to withstand the loads acting on the building, under the most diverse combinations with possibilities of occurrence. The wind effects in the building were determined according to their aerodynamic characteristics, as well as the location to where it was being projected; considering the various senses of action and the various combinations with possibility of occurrence. In this way, the profiles that met the safety conditions for both the beams and the pillars were verified, always scaling the choice of the smallest possible areas to provide the guarantee of economic feasibility of the project. In the Brazilian standard the profile chosen for the pillars was the W360x72 while for the beams it was W360x44. For the European standard the profile of the pillars was the IPE 330x49,1 while for the beams was the IPE 300x42,4. Thus, the design of the building structure for the Brazilian standard had a total weight of 2.155,44 kg, which represented a more conservative result in 24% in relation to the design suggested by the European standard, which in turn totaled a weight of 1.640,57 kg.
Descrição
Palavras-chave
Dimensionamento NBR 8800; Dimensionamento Eurocódigo 3; Pavilhão industrial; Estruturas Metálicas
Citação
SILVA, Martin Douglas Da. Estudo do dimensionamento de um pavilhão industrial com estrutura em aço. 2018. Monografia (Graduação em Engenharia Civil) – Universidade do Vale do Taquari - Univates, Lajeado, 11 jul. 2018. Disponível em: http://hdl.handle.net/10737/2253.