Transfer columns are the essential elements in a building frame structure wherein some stories are constructed with steel-reinforced concrete (RC) columns and others with RC columns. The stories with transfer columns may suffer severe damage due to sudden changes in strength and stiffness along their heights. This study investigates the structural behavior of transfer columns subjected to axial compressive loading and bending about major/minor axes. Forty transfer columns are modeled in the finite element software ABAQUS to study their failure mechanism, lateral bearing capacity, and ductility ratios. The parameters investigated are the levels of embedment length of the structural steel, and the detailing of lateral ties and the base plate at the truncation zone in the column. It is concluded that hybrid columns have higher lateral strengths than the RC columns but exhibit limited ductility due to the sudden shear failure. The specimen with structural steel extended by 50–60% of clear column height exhibited improved ductility. The precipitous failure of the transfer column is alleviated with the provision of a base plate and anchor bolts at the end of the structural steel section.

转换柱是建筑框架结构中的基本元素，其中一些楼层采用钢筋混凝土 (RC) 柱，其他楼层采用 RC 柱。由于沿其高度的强度和刚度突然变化，带有转换柱的楼层可能会遭受严重损坏。本研究研究了承受轴向压缩载荷和绕长/短轴弯曲的转换柱的结构行为。在有限元软件 ABAQUS 中对 40 个转换柱进行建模，以研究其失效机制、横向承载能力和延展性比。研究的参数包括结构钢的埋置长度水平、侧向拉杆和柱截断区底板的细节。结论是，混合柱比钢筋混凝土柱具有更高的横向强度，但由于突然的剪切破坏而表现出有限的延性。结构钢延伸净柱高度 50-60% 的样本表现出更好的延展性。通过在钢结构截面末端设置底板和地脚螺栓，可以缓解转换柱的急剧失效。