In this article, the seismic performance of box-shaped steel piers embedded with energy-dissipating shells under a multi-directional seismic load is investigated. A finite element (FE) model was accurately established and verified by the quasi-static test results. A parametric analysis of the hysteretic behaviour of a novel box-shaped steel pier under eccentric pressure was carried out on this basis. We discussed the influence of the eccentricity, axial compression ratio, thickness of embedded shell, ratio of slenderness, spacing of transverse stiffening ribs on the embedded shell, and width-to-thickness ratio of wallboard on the anti-seismic performance of a novel box-shaped steel bridge pier. The results revealed that the load carrying capacity and ductility coefficient of the specimen are substantially influenced by the eccentricity, variation in the axial compression ratio, and slenderness ratio. The specimen’s plastic energy dissipation capacity can be effectively improved by increasing the thickness of the embedded shell. The spacing of the transverse stiffening ribs only marginally affects seismic performance. In addition, the width-to-thickness ratio of the wallboard exerts a more considerable influence on the deformability of the square-section specimen. Finally, a formula for calculating the bearing capacity of the novel box-shaped steel piers under cyclic loading is proposed.

本文研究了多向地震荷载作用下嵌入消能壳的箱形钢桥墩的抗震性能。通过准静态试验结果准确建立并验证了有限元（FE）模型。在此基础上，对新型箱形钢桥墩在偏压作用下的滞回性能进行了参数分析。讨论了偏心距、轴压比、嵌壳厚度、细长比、嵌壳横向加强筋间距、墙板宽厚比对新型箱体抗震性能的影响型钢桥墩。结果表明，试件的承载能力和延性系数受偏心率影响较大，轴向压缩比和长细比的变化。增加预埋壳厚度可以有效提高试件的塑性耗能能力。横向加强筋的间距对抗震性能的影响很小。此外，墙板的宽厚比对方形截面试件的变形能力影响更大。最后，提出了循环荷载作用下新型箱形钢桥墩承载力的计算公式。墙板的宽厚比对方形截面试件的变形能力影响较大。最后，提出了循环荷载作用下新型箱形钢桥墩承载力的计算公式。墙板的宽厚比对方形截面试件的变形能力影响较大。最后，提出了循环荷载作用下新型箱形钢桥墩承载力的计算公式。