中文摘要：

本文基于变分法理论,分析不同壁宽比空心柱的剪力滞效应,并与有限元分析结果进行对比验证;采用有限元方法分析了不同壁宽比对空心柱刚度和最大应力的影响规律;最后对空心柱-箱型转换层-剪力墙结构进行整体分析,研究壁宽比对空心柱轴压比的影响规律。结果表明,随着壁宽比的减小,空心柱的剪力滞与轴压比逐渐增大,刚度整体呈下降趋势。当壁宽比大于等于0.2时,结构轴压比满足规范要求,结构整体受力性能较好。

英文摘要：

In this paper,based on the variational principle,the shear lag effect of hollow column under different ratios of thickness to width is analyzed and compared with the result of finite element analysis. Finite element method is adopted to analyze the influence of different ratios of thickness to width on the stiffness and maximum stress of hollow column. At last,the effect on the axial load ratio is studied by analyzing the hollow columnconversion layer-shear wall structure system. The results indicate that,the shear lag and axial load ratio of hollow column increase gradually with the decrease of ratio of thickness to width,and the curve of stiffness shows a downward trend obviously. When the value of ratio of thickness to width is more than 0. 2,the axial load ratio of whole structure can meet the limits of norm,and the overall mechanical performance of structure is well.