高层建筑下部柱截面选型比较

Comparison on the selection of the section of lower columns in high-rise building

阐述了高层建筑下部柱的四种截面类型,介绍了这些柱型的性能和轴压比限值,并给出了如何根据轴力大小进行选型的算例,结果显示,选用钢管混凝土柱、型钢混凝土柱等均能满足其使用要求。

Four types of the section of lower column of high-rise building are elaborated. The performances of those columns and ultimate axial compression ratio of them are introduced, at the same time calculation example is introduced for the type selection of cohmms according to the value of axial force. Results show concrete filled steel tubular column and steel reinforced concrete column both can meet service requirements.