【摘要】 以有限元分析软件ANSYS为工作平台,基于双重非线性板壳有限元分析方法,对轻型门式刚架结构 中的等、变截面H型钢梁的相关屈曲性能进行了深入对比研究,重点考察了纯弯状态下梁腹板的局部屈曲 对其整体性能的影响．更多还原

【Abstract】 Based on the finite element method, the interactive buckling of straight and tapered H- section steel beams used in portal frame structures are analyzed by ANSYS, in which geometric and material non - linearity is considered and shell element is adopted. According to the load - deflection curves obtained, the effect of local buckling of thin web on global behaviors of H - section tapered beams under pure bending are discussed.更多还原