NUMERICAL EVALUATION TO DETERMINE THE LOAD CAPACITY OF LIGHT STEEL FRAME WALLS
KILDENBERG KAYNAN FELIX NUNES1; ANNE CAROLINE LINHARES MONTEIRO1; HIDELBRANDO JOSÉ FARKAT DIÓGENES1; ANDREA BRASILIANO SILVA1; PAULO VITOR MENDONÇA REZENDE1
1 UNIVERSIDADE FEDERAL DA PARAÍBA
doi:10.20906/CPS/CILAMCE2017-0955
Resumo
The industrialization of construction proposes to optimize the deficient stages of the construction processes, improving them or creating new methods that can generate greater efficiency and quality. Among the rational construction methods, stands out a system that is not widespread in Brazil, but already well established in developed countries, the Light Steel Frame (LSF). Because it is a recent structural system, especially in Brazil, there are not many studies on the structural behavior of LSF walls. Thus, they are commonly used only as dividing walls, poorly resistant, or incapable of contributing to the improvement of overall structure behavior. It is fundamental to understand the structural behavior of the system that is idealized so that the design of the structure is done safely, rationally and economically. According to Silva (2013), computational numerical modeling is an essential tool in structural analysis, ensuring a more in-depth study of tensions and deformations. Considering the importance of the insertion of new technologies in civil construction and the need to understand the structural behavior of the technique used, this study aims to study the structural performance of LSF panels, from numerical modeling using the Finite Element Method, focusing on the linear analysis of the structural behavior, when subjected to compression efforts. Numerical models were developed in SAP2000® software and simulated small LSF walls of dimension 1.20 x 1.20 meters. The methodology used was to apply vertical loads linearly distributed on the top of the walls and to evaluate the deformation at specific points of the central studs, comparing them with the theoretical values. In addition, in order to evaluate the influence of the holes, intended for the passage of electrical and hydraulic installations through the studs, in the resistant capacity of the walls, two different modeling methodologies were considered. The numerical responses were compared to the expected theoretical ones, obtained from analytical formu
Palavras-chave: NUMERICAL MODELING; LIGHT STEEL FRAME; AXIAL COMPRESSION