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中文摘要：
采用带约束拉杆方形钢管混凝土的本构关系,建立了基于纤维模型法的模拟带约束拉杆方形钢管混凝土短柱承载力-变形全过程曲线的非线性分析方法,计算结果与试验结果吻合良好。利用经试验验证的计算程序对带约束拉杆方形钢管混凝土短柱的单向和双向偏压延性进行较系统的参数分析,回归了带约束拉杆方形钢管混凝土单向和双向偏压延性简化计算公式,公式的计算精度高,形式简单。
英文摘要：
To adopt the constitutive relationship of square CFT with binding bars,nonlinear analysis method of the whole process curve of capacity-deformation of square CFT stub columns with binding bars subjected to eccentric loading is carried out based on fiber model method.The analysis results are in good agreement with the experimental ones.The parameters analysis of the curvature ductility of the CFT stub columns subjected to uniaxial and biaxial eccentric loading are performed by using verified programs,simplified formulas to calculate curvature ductility of square CFT with binding bars are regressed,which have high accuracy and simple expression.
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