ANÁLISE DO COMPORTAMENTO DO DIAFRAGMA HORIZONTAL E VERTICAL EM EDIFICAÇÕES UTILIZANDO O SISTEMA LIGHTWEIGHT WOOD-FRAME

Abstract

The desire to build buildings faster with clean and organized construction sites, combined with the necessity of sustainable economic practices, make the lightweight wood-frame construction system an attractive alternative to combat the housing deficit that exists in modern-day Brazil. To execute the construction of wood-frame buildings in a safe and economically viable manner, it is important to understand the structural behavior of this constructive system with regards to the parameters that a project demand. In comparison to conventional reinforced concrete construction, wood-frame construction experiences the impact of wind forces significantly more. Therefore, the objective of this work is to analyze the structural behavior of wood-frame buildings with respect to horizontal loads of wind; specifically, the horizontal and vertical diaphragm effect as the mechanism responsible for bracing the structure. Thus, using a computational model developed in the SAP2000 software, it was intended to apply wind loads and model diaphragm and shear wall, in order to analyze the behavior of the load path, as well as to compare the results found, with the theory about the theme, references and works carried out with experimental models in lightweight wood-frame. The results obtained showed that despite the fact that it is a lightweight wood-frame construction system, the wind loads did not significantly impact the absolute axial and shear forces on the structure, due to factors related to the total height and location of the building.