核芯型钢混凝土柱承载力的计算与分析  

COMPUTION AND ANALYSIS ON THE STRENGTH OF THE CORE STEEL REINFORCED CONCRETE COLUMNS

作　　者：张建文[1] 王付洲[1] 

机构地区：[1]南阳理工学院土木工程系,河南南阳473004

出　　处：《南阳理工学院学报》2009年第3期47-50,共4页Journal of Nanyang Institute of Technology

摘　　要：研究核芯型钢混凝土(CSRC)柱和含钢量相同的钢筋混凝土(RC)柱在承载能力方面的异同。计算了四个不同钢骨含钢率核芯型钢混凝土柱在不同轴压比下的正截面承载力;绘制了N—M相关曲线,并与含钢量相同的钢筋混凝土柱承载力进行对比分析。结果表明:轴压比n较大时,0.45≤n≤nb(nb为界限轴压比),核芯型钢混凝土柱的正截面承载力高于用钢量相同的钢筋混凝土柱;轴压比较小时,n<0.45,核芯型钢混凝土柱的正截面承载力低于用钢量相同的钢筋混凝土柱。Strength capacities are investigated between CSRC （core steel reinforced concrete） and RC columns with the same steel ratio. Computation and analysis are performed at different axial compression ratio on flexural and shear strength of CSRC columns with four different steel ratio and N--M curves were drawn and the strength is compared with RC columns. The results indicate that when axial compression ratio is bigger, the flexural-compression capacity of CSRC columns is higher than the RC columns, vice verse.

关 键 词：核芯型钢混凝土柱 钢骨含钢率 轴压比 N—M曲线 承载力 

分 类 号：TU375.3[建筑科学—结构工程]