To enable rapid recovery of a steel bridge column after an earthquake, a novel tubular-section steel bridge column equipped with low-yield-point (LYP) steel tubular plates in the root replaceable pier is proposed. For the purpose of discussing the seismic behavior of the novel steel bridge column, quasi-static tests and finite element simulation analyses of the specimens were carried out. The effects of parameters such as the axial compression ratio, eccentricity, and thickness and material strength of the tubular plate in the energy-dissipating zone are discussed. Experimental results from seven specimens that were subjected to four failure modes are presented. The damage to the quasi-static specimens is localized to the replaceable energy-dissipating pier. The seismic behavior of the novel steel bridge columns is significantly influenced by the axial compression ratio and eccentricity of specimens. Numerical results show that the high stress area of the specimens is mainly concentrated in the connection zone between the LYP steel tubular plate and the bottom steel plate, which is consistent with the position of the quasi-static specimen when it was prone to fracture. Finally, a calculation formula is proposed to facilitate the capacity prediction of this new steel tubular bridge column under repeated loading.

为了使钢桥柱在地震后能够快速恢复，提出了一种在根部可更换墩中配备低屈服点 (LYP) 钢管板的新型管状截面钢桥柱。为探讨新型钢桥柱的抗震性能，对试件进行了准静力试验和有限元模拟分析。讨论了轴压比、偏心距、管板厚度和耗能区材料强度等参数的影响。给出了七个试样经受四种失效模式的实验结果。准静态试件的损坏局限于可更换的消能墩。新型钢桥柱的抗震性能受试件的轴压比和偏心率影响很大。数值结果表明，试件的高应力区域主要集中在LYP钢管板与底钢板的连接区，这与准静态试件易发生断裂时的位置一致。最后，提出了一个计算公式，以便于预测这种新型钢管桥柱在重复荷载作用下的承载力。这与准静态试件易断裂时的位置一致。最后，提出了一个计算公式，以便于预测这种新型钢管桥柱在重复荷载作用下的承载力。这与准静态试件易断裂时的位置一致。最后，提出了一个计算公式，以便于预测这种新型钢管桥柱在重复荷载作用下的承载力。