带约束拉杆L形钢管混凝土轴压短柱的承载力计算  

ULTIMATE STRENGTH EQUATIONS FOR L-SHAPED CFT STUB COLUMNS WITH BINDING BARS

作　　者：孙刚[1] 蔡健[2] 

机构地区：[1]仲恺农业工程学院城市建设学院,广州510225 [2]华南理工大学土木工程系,广州510640

出　　处：《建筑技术》2010年第1期31-33,共3页Architecture Technology

基　　金：广东省自然科学基金资助项目(012356);仲恺农业工程学院基金资助项目(G2360288)

摘　　要：在试验的基础上,分析了带约束拉杆L形钢管混凝土短柱的受力机理,将带约束拉杆L形钢管混凝土短柱划分成一个方形和两个带约束拉杆的矩形钢管混凝土短柱,提出了轴压下带约束拉杆L形钢管混凝土短柱的承载力计算公式,并结合试验数据确定了计算公式中的参数。用建议计算公式对有关试件进行计算,计算结果与试验结果吻合良好。The interaction within the components of L-shaped concrete filled steel tube （CFT） stub columns with binding bars subjected axial load is analyzed. The L-section is divided into a square and two rectangular sections. The rectangular sections have binding bars while the square section has no one. The ultimate strength equations for L-shaped CFT stub columns with binding bars are proposed and the parameters of the equations are confirmed through experimental data. Finally,The experimental specimens are calculated by the proposed equations. The calculating results of the ultimate strength of the specimens are good agreement with the experimental ones.

关 键 词：L形钢管混凝土短柱 约束拉杆 约束混凝土 极限承载力 局部屈曲 

分 类 号：TU398[建筑科学—结构工程]