In this research, the threshold stiffness and residual displacement of the MPCFS are both investigated. The MPCFS has a higher threshold (breakaway) stiffness and no residual displacement after earthquakes or ambient vibrations, which makes it different from the conventional Curved Surface Slider (CSS). These two features can enable the MPCFS to be more stable when experiencing micro-to-small shakings, and always restore to its central point after earthquakes. With the aim of testifying the two features, a series of analytical simulations are conducted on a four-storey building model equipped with MPCFS. The analytical results are compared with that obtained with CSS. The simulation results validate the aforementioned virtues of MPCFS over the CSS. This indicates that MPCFS has great potential in the engineering practice of seismic isolation.

在这项研究中，对MPCFS的阈值刚度和残余位移进行了研究。MPCFS具有较高的阈值（分离）刚度，并且在地震或环境振动后没有残留位移，这使其与传统的曲面滑块（CSS）不同。这两个功能可以使MPCFS在经历微小到微小的震动时更加稳定，并在地震后始终恢复到其中心点。为了证明这两个功能，对装有MPCFS的四层建筑模型进行了一系列分析模拟。将分析结果与CSS获得的结果进行比较。仿真结果验证了MPCFS在CSS上的上述优点。这表明MPCFS在隔震工程实践中具有巨大的潜力。