Eventos Anais de eventos
MECSOL 2022
8th International Symposium on Solid Mechanics
Time-dependent analysis of critical buckling load using optimization technique
Submission Author:
Kaique Moreira Matos Magalhães , BA , Brazil
Co-Authors:
Kaique Moreira Matos Magalhães, Alexandre de Macêdo Wahrhaftig, Marcelo Silva, Reyolando Brasil
Presenter: Kaique Moreira Matos Magalhães
doi://10.26678/ABCM.MECSOL2022.MSL22-0006
Abstract
An analytical and numerical analysis was developed to determine the time-dependent critical buckling load of a slender reinforced concrete column. The analytical solution was based on the Rayleigh method, where different trial functions were fitted to the numerical model, developed using the Finite Element Method (FEM), applying optimization techniques. In the analysis, the non-linearity due to the slenderness of the system together with the rheological property of the concrete considered through the Eurocode 2 was considered in the calculation. To compare results, two trial functions of the Rayleigh method were used, a trigonometric and a quadratic. In this context, the quadratic equation was used to apply the optimization technique with its coefficients adjusted to produce results as close as possible to that from FEM.
Keywords
Critical buckling load, Optimization, trial function
