Multicell concrete-filled steel tubulars (MCFSTs) have been widely utilized in super-high-rise buildings. Hexagonal six-cell CFST columns have received attention from scholars, and a series of investigations have been conducted. However, investigations on their behavior under lateral cyclic loads are rare. Hence, 8 samples were designed, and an experimental study was conducted under lateral cyclic loads. The parameters included 3 loading directions (strong axis, 45 degrees, and weak axis), 2 axial loads (750 kN and 1500 kN), and 2 types of cross-sectional structures (angle steel-reinforced type and basic type). Analysis was conducted on bearing capacity, the failure mode, ductility, residual deformation, accumulated energy dissipation and strain development. The experimental results indicate that the angle steel can decrease the residual deformation and improve the accumulated energy dissipation and bearing capacity of samples. The performances of samples under different loading directions were significantly different. With the loading directions changing from the strong axis to the weak axis, the accumulated energy dissipation and bearing capacity decreased. The influence of the axial load ratio was related to the loading direction. A calculation model using the fiber-based method was established considering the differences among the different cells. According to the calculation results of this method, the limit axial load ratio decreased with the loading directions changing from the strong axis to the weak axis. The stress-strain relationships of plain concrete and confined concrete based on single-cell CFSTs were conservative in predicting the F-Δ curves, and the error increased with an increasing axial load ratio, while the separation model showed the best agreement.

多单元混凝土填充钢管（MCFST）已被广泛用于超高层建筑。六角六孔CFST色谱柱受到了学者的关注，并进行了一系列研究。但是，很少研究它们在横向循环载荷下的行为。因此，设计了8个样品，并在横向循环载荷下进行了实验研究。参数包括3个载荷方向（强轴，45度和弱轴），2个轴向载荷（750 kN和1500 kN）和2种横截面结构类型（角钢增强型和基本型）。对承载力，破坏模式，延性，残余变形，累积能量耗散和应变发展进行了分析。实验结果表明，该角钢可以减少残余变形，提高试样的累积能量耗散和承载能力。样品在不同加载方向下的性能差异显着。随着载荷方向从长轴到弱轴的变化，累积的能量消散和承载力下降。轴向载荷比的影响与载荷方向有关。考虑到不同单元之间的差异，使用基于纤维的方法建立了计算模型。根据该方法的计算结果，极限轴向载荷比随着载荷方向从长轴到弱轴的变化而减小。F - Δ曲线，并且误差随着轴向载荷比的增加而增加，而分离模型显示出最佳的一致性。