STUDYING THE EFFECT OF SOME PARAMETERS ON THE STABILITY ANALYSIS OF THE PLANE FRAME USING FINITE ELEMENT METHOD

Abstract

The paper presents the principle and construction of computer program on stability analysis of multi-bay and multi-story plane frame by finite element method. Research on influence of the parameters: ratio of bending stiffness of beams and columns, ratio of length of beams and columns, and number of element per every column on the critical load parameters corresponding to symmetric buckling modes and antisymmetric buckling modes. The results show two-finite-element model per every column is sufficiently accurate for the stability analysis of multi-bay and multi-story plane frame.