This paper analytically investigates the application of cushion stoppers to a flat-sliding structure having a non-modern sliding interface to suppress its residual sliding displacement during earthquakes. Based on a basic sliding structural model, this study builds seismic response estimation methods and a stopper design to avoid significant additional damage to superstructures. The design and estimation methods are examined using numerical simulations of flat-sliding structures having friction coefficients around 0.2 and designed stoppers. From the examinations, properly designed stoppers are found to provide the expected suppression effect without causing significant additional force to the superstructure. The estimation methods reasonably evaluate seismic responses for cases with and without stoppers. Stoppers properly designed can be placed without a gap as a best practice, although a small gap within a couple of centimeters is also acceptable in terms of the efficiency of seismic mitigation and suppression of displacement.

本文分析研究了缓冲止动器在具有非现代滑动界面的平面滑动结构中的应用，以抑制其在地震期间的残余滑动位移。本研究基于一个基本的滑动结构模型，建立了地震反应估计方法和止动器设计，以避免对上部结构造成重大的额外损坏。使用摩擦系数约为 0.2 的平面滑动结构和设计的制动器的数值模拟来检查设计和估计方法。从检查中发现，设计合理的挡块可提供预期的抑制效果，而不会对上部结构造成显着的附加力。估计方法合理地评估了有塞子和没有塞子的情况下的地震响应。