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求解了承受双向偏心荷载任意开口薄壁截面的弹性平衡方程,获得此类柱适用于任何边界条件的弹性解析解。应用有限元法发展了任意开口薄壁截面柱在双向偏心荷载下的弹性理论,并编制了模拟计算程序,对有限元弹性解和弹性解析解进行了比较,理论计算和实验结果吻合较好。
The elastic equilibrium equation for any open thin-walled section subjected to biaxial eccentric load was solved and the elastic analytical solution for any boundary condition was obtained. The elastic theory of free-thin-walled thin-section columns under biaxial eccentric load was developed by using the finite element method. The simulation calculation program was compiled. The finite element elastic solution and the elastic analytical solution were compared. The theoretical calculation and experimental results are in good agreement.