Previous studies have investigated the mechanical behavior of steel ring restrainers (SRRs) under monotonic loading, while that of SRRs under cyclic loading is unclear. This study investigates the effects of configuration dimensions and steel grades on the cyclic behavior of the SRRs through an experiment and numerical simulations. An experimental study on six SRR specimens was conducted under cyclic loading. Then, numerical models were validated by the experimental results and further employed to carry out an extensive parametric analysis. A hysteretic model of the SRRs and corresponding formulae were proposed. Finally, a design procedure of the SRRs was presented. The results show that the proposed SRR has much higher deformation capacity compared with conventional restrainers such as cable restrainers and stoppers. It is also found that the envelope curve under cyclic loading is consistent with the force-displacement curve under monotonic loading. The unloading and reloading stiffnesses of the proposed SRR are low at small displacement ranges, while increasing significantly as the displacement increases. They close to the peak load decreases significantly, and a subsequent fracture occurs soon after the peak load is reached. Moreover, predictions given by the proposed hysteretic model are in good agreement with experimental and numerical results.

以前的研究已经研究了钢环限制器 (SRRs) 在单调载荷下的力学行为，而 SRRs 在循环载荷下的力学行为尚不清楚。本研究通过实验和数值模拟研究了配置尺寸和钢种对 SRR 循环行为的影响。在循环载荷下对六个 SRR 试样进行了实验研究。然后，数值模型通过实验结果进行验证，并进一步用于进行广泛的参数分析。提出了 SRR 的滞后模型和相应的公式。最后，介绍了 SRR 的设计程序。结果表明，与传统的限制器（例如电缆限制器和限位器）相比，所提出的 SRR 具有更高的变形能力。还发现循环加载下的包络线与单调加载下的力-位移曲线一致。所提出的 SRR 的卸载和重新加载刚度在小位移范围内较低，而随着位移的增加而显着增加。它们在接近峰值载荷时显着下降，并且在达到峰值载荷后很快就会发生随后的断裂。此外，所提出的滞后模型给出的预测与实验和数值结果非常一致。并且在达到峰值载荷后不久就会发生随后的断裂。此外，所提出的滞后模型给出的预测与实验和数值结果非常一致。并且在达到峰值载荷后不久就会发生随后的断裂。此外，所提出的滞后模型给出的预测与实验和数值结果非常一致。