ESTUDO NUMÉRICO DE VIGAS DE AÇO SUBMETIDAS À FLEXÃO

Resumo

Structural analysis consists of identifying and predicting the behavior of the structure in the
analytical, experimental and numerical fields. For this, physical and mathematical theories resulting
from the formalization of structural engineering are used. Numerical modeling is the study of
mathematical problem approximation algorithms that converge to the real solution of the problem
through computational aid. Beams are generally structures used to resist transverse stresses along the
longitudinal axis and to transmit these loads to other structures. This type of element has internal
forces such as bending and shear. Bending bending causes a deformation of the pieces, which is
determined by the elastic line, resulting in displacement along the axis, the deflection. Thus, this work
will have as main objective to perform analytical and numerical study of an isostatic steel beam. After
the analytical study, the elaboration of the numerical model through the Finite Element Method (FEM)
through the SAP2000 modeling software will be made. Then we will compare the values obtained
with the methods used. According to the analytical and numerical results one can infer the
effectiveness of the numerical analysis performed, highlighting the efficiency of the nonlinear
analysis, in view of the approximation of the results obtained through SAP2000, as well as the
refinement of the results. The paper also presents results on the influence of beam variation on
deflection analysis, showing that the greater the stiffness of the profile, the smaller the displacement in
the vertical axis.