对钢框架结构体系中的轴心受压构件进行失稳屈曲分析，以钢柱为例，进行ABAQUS有限元建模，并得出在不同特征值下的力学屈曲模型形式，并用理论知识来探究钢柱轴心受压构件的失稳屈曲机理，主要是从整体稳定性以及局部稳定性两个大的方面进行理论计算阐述分析，同样也简单的介绍了一下轴心受压构件的强度、刚度计算理论，其中整体稳定性问题研究主要是弯曲屈曲、扭转屈曲、弯扭屈曲三个屈曲形式的稳定性研究，局部失稳主要研究的是实腹式轴心受压柱的局部稳定性相关计算理论。
The buckling analysis of axial compression members in steel frame structure system is carried out. Taking steel column as an example, finite element modeling of ABAQUS is carried out, and the form of mechanical buckling model under different eigenvalues is obtained and theoretical knowledge is used. To investigate the instability buckling mechanism of steel column axial compression members, mainly from the two aspects of overall stability and local stability, theoretical calculations and analysis, also briefly introduce the axial compression members. The theory of strength and stiffness calculation, in which the overall stability problem is studied, is the stability study of three buckling modes of bending buckling, torsional buckling and bending-torsional buckling. The local instability is mainly studied by the local stability of the solid abdominal compression column and sexual correlation calculation theory.
