钢管混凝土抗剪承载力计算公式的推导与验证  

Deducing and proving of numerical formula for shear resistance of concrete-filled steel tube

作　　者：徐春丽 

机构地区：[1]上海宝冶集团有限公司,上海200941

出　　处：《四川建筑科学研究》2016年第4期17-21,共5页Sichuan Building Science

摘　　要：通过对54个钢管混凝土柱的抗剪承载力试验结果进行多元线性回归分析,考察了套箍指标、剪跨比和轴压比对钢管混凝土柱抗剪承载力的影响,推导出钢管混凝土抗剪承载力的计算公式,并将理论计算值和试验值进行了比较,得出计算公式的安全系数,该公式对将来规程的修订和工程设计均有参考价值。Based on the multivariate linear regression analysis of experimental results of shear resistance of 54 concrete-filled steel tube（ CFST） columns,the influence of confinement index,shear span ratio and axial compression ratio on shear resistance is emphatically researched. The numerical formula for shear resistance of CFST columns is proposed,and the numerical results are compared with experimental results. The safety coefficient of numerical formula is obtained. It＇s a value reference for the specification＇s revising and engineering design.

关 键 词：钢管混凝土 抗剪承载力 轴压比 剪跨比 套箍指标 回归分析 

分 类 号：TU317.1[建筑科学—结构工程]