中文摘要：

柱作为重要的结构构件,其稳定性及承载力的计算非常重要,尤其是对于一些穿层柱。而现行规范（程）对柱计算长度的确定未给出合理解。选取典型工程实例,从整体结构屈曲稳定分析出发,得到各层柱的屈曲模态,结合欧拉公式反算柱计算长度,从而确定柱的承载能力。并与规范（程）关于钢柱计算长度计算方法进行了对比分析。分析结果表明,本文的计算方法合理,并易于在工程中实现。

英文摘要：

Column is an important structural unit, and calculation of its stability and effective length is very important, especially for some of the two or three layer-high columns. But there is no reasonable solution for the effective length of columns in the present codes. A typical case was chosen to study, and starting with buckling stability analysis, buckling modes for columns were obtained. The effective length of columns was inversely calculated combined with the Euler formula, then the carrying capacity of steel concrete columns was determined. Compared with the code methods on the steel column effective length, this calculation method is reasonable and easy to apply in the project.