【摘要】 在轴压力及水平反复荷载作用下，对３８根截面核心用钢管砼增强的高强砼柱的抗震性能进行了试验研究．根据试验结果，分析了柱的破坏机理和影响柱强度及延性的主要因素．对最小体积配箍率、最小钢管面积比以及最大轴压比等参数提出了建议，以保证设计所要求的延性更多还原

【Abstract】 Thirty eight high strength concrete columns reinforced with concrete filled steel tube in the core of section have been tested under axial and cyclic lateral loadings. Based on the test results, the failure mechanism, the factors affecting the strength and ductility of these columns are analysed. The minimum ratio of stirrups, the minimum ratio of steel tube section to gross concrete section and the maximum ratio of the axial load to the compressive resistance of the column are proposed to ensure the designed ductility.更多还原