高层建筑框架柱轴压比限值研究

Discussion on limit values of axial compression ratio of frame columns for high building

结合现行规范,从柱截面形式、混凝土强度等级、箍筋的形式和体积配箍率等方面分析了对轴压比限值的影响。指出对钢骨混凝土、钢管混凝土及框架—剪力墙结构柱的轴压比值可不进行限制,并对高层建筑框架柱轴压比限值给出了一些建议,以供设计时参考。

Combined with the standard, this paper analyzed the factors for the axial compression ratio form the cross-sections of columns, the strength of concrete, the beop reinforcement, the stirrup ratio. We find that the limited values of axial compression ratio of the steel reinforeed concrete columns, the concrete filled steel tubes columns and the columns of the frame-shear wall structure is unneeessary. Some suggestions on the limit values of the axial compression ratio of columns are given,which can be referred to for the design.