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通过对８根十字形截面钢筋砼柱在轴向力及双向弯矩共同作用下的反复加载试验，研究此类柱的延性及滞回曲线的一般规律。在此基础上，采用全过程非线性分析方法，编制了相应的电算程序，对其延性性能做了进一步的理论分析。最后，提出了十字形截面钢筋砼双向压弯柱截面延性的计算公式，并对轴压比、箍筋间距等一系列构造要求提出了设计建议。
Through the repeated loading tests of eight cruciform reinforced concrete columns under axial and biaxial bending moments, the general laws of the ductility and hysteretic curve of these columns were studied. On this basis, a full-process nonlinear analysis method was used to compile the corresponding computer program, and a further theoretical analysis was made of its ductility. Finally, the formulae for calculating the ductility of the cross-section reinforced concrete bi-compression bending columns with cruciform cross sections are proposed. The design suggestions for the series of structural requirements such as axial pressure ratio and stirrup spacing are also proposed.