论文部分内容阅读
纵向加劲肋可以有效提高方形或矩形薄壁钢管混凝土柱的整体性能。主要讨论轴压下加劲方形短柱的非线性分析与设计。运用有限元程序ABAQUS进行非线性分析。关于荷载-位移曲线和极限强度的试验与分析结果具有良好的一致性。运用这个模型同时也对柱的性能进行了研究,讨论板的宽厚比限值和加劲肋刚度需求,以及运用现有规范预测加劲复合柱承载能力的可行性。
Longitudinal stiffeners can effectively improve the overall performance of square or rectangular thin-walled CFST columns. Mainly discusses the non-linear analysis and design of stiffened rectangular stub under axial compression. The finite element program ABAQUS is used for nonlinear analysis. The test and analysis results on load-displacement curves and ultimate strengths are in good agreement. The model was also used to study the performance of the column, discussing the requirements of plate thickness-to-thickness ratio and stiffener stiffness, and the feasibility of predicting the bearing capacity of stiffened composite columns by using the existing code.