Open AccessDetermination of the ultimate load for centrally compressed concrete filled steel tubular columns based on the deformation theory of plasticity
Author(s) -
M. N. Grigoryan,
Pavel Urvachev,
Антон Чепурненко,
T. V. Polyakova
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/913/2/022069
Subject(s) - structural engineering , finite element method , deformation (meteorology) , materials science , plasticity , algebraic equation , stress (linguistics) , composite material , nonlinear system , engineering , physics , linguistics , philosophy , quantum mechanics
The article presents a methodology for determining the stress-strain state and breaking load for concrete filled steel tubular columns in a physically non-linear setting. The calculation is performed step by step, for each step in the load, the problem is reduced to a system of three linear algebraic equations. The results are compared with known analytical dependences, as well as with the results of calculations in a three-dimensional formulation using the finite element method.