The use of high-strength longitudinal and transverse reinforcements in confined concrete columns can improve bearing capacity and deformability. Besides, experiments on confined concrete columns with side length of 400 mm can better reflect the behaviour of confined concrete columns in engineering project. Thus, the purpose of this study is to investigate the seismic behaviour of full-scale confined concrete columns with high-strength longitudinal and transverse reinforcements. Based on 15 confined concrete columns subjected to lateral cyclic loading, the effects of axial compression ratio, shear span ratio and volumetric ratio on the seismic behaviour of confined concrete columns were studied. The results showed that the ultimate drift ratios of the 15 confined concrete columns ranged from 1/43 to 1/20, i.e. 1.2–2.5 times as much as the specified limit (1/50) of rate earthquake, indicating excellent ductility. Additionally, the high-strength transverse reinforcements could not yield at peak load but could yield at the ultimate displacement. The high-strength transverse reinforcement stresses at the peak lateral load were 430–690 MPa, approximately 56–91% of the transverse reinforcement yield strength. Finally, an empirical formula was proposed to predict the ductility factor that was then evaluated by comparing the predicted values with the experimental results of 37 confined concrete columns.

在承压混凝土柱中使用高强度纵向和横向钢筋可以提高承载能力和变形能力。此外，边长为400 mm的承压混凝土柱的试验可以更好地反映工程项目中承压混凝土柱的性能。因此，本研究的目的是研究具有高强度纵向和横向钢筋的全尺寸承压混凝土柱的抗震性能。基于15根侧向循环荷载作用下的约束混凝土柱，研究了轴向压缩比，剪切跨度比和体积比对约束混凝土柱抗震性能的影响。结果表明，15根承压混凝土柱的极限位移比为1/43至1/20，即1.2–2。是倍率地震的指定极限（1/50）的5倍，表明其出色的延展性。此外，高强度横向钢筋不能在峰值荷载下屈服，而可以在极限位移下屈服。在峰值横向载荷下的高强度横向钢筋应力为430-690 MPa，大约是横向钢筋屈服强度的56-91％。最后，提出了一个经验公式来预测延性因子，然后通过将预测值与37个承压混凝土柱的试验结果进行比较来评估延性因子。在峰值横向载荷下的高强度横向钢筋应力为430-690 MPa，大约是横向钢筋屈服强度的56-91％。最后，提出了一个经验公式来预测延性因子，然后通过将预测值与37个承压混凝土柱的试验结果进行比较来评估延性因子。在峰值横向载荷下的高强度横向钢筋应力为430-690 MPa，大约是横向钢筋屈服强度的56-91％。最后，提出了一个经验公式来预测延性因子，然后通过将预测值与37个承压混凝土柱的试验结果进行比较来评估延性因子。