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作者在钢管混凝土柱支座隔震房屋实验研究中发现，隔震支座中上盖与底座的接触无论如何处理，摩擦力总是存在的．因此，隔震支座实际上是摩擦耗能与钢管混凝土耗能复合减震系统。本文通过对单个和一组隔震支座的实验研究，确定了短柱支座的恢复力模型，采用了高阶单步算法分析了装有此类支座隔震结构的地震反应，验证了复合隔震支座良好的隔震性能及隔震效果。
In the experimental study of isolated concrete-filled steel tubular columns, it is found that there is always friction in the contact between the upper cover and the base of the isolation bearings. Therefore, the isolation bearing is actually the friction energy dissipation and the concrete-filled steel tube damping composite damping system. In this paper, through the experimental study of a single and a group of isolated bearings, the restoring force model of the short-column bearings is determined and the high-order single-step algorithm is used to analyze the seismic responses of the isolated structures with such bearings. Composite isolation bearings good isolation properties and isolation effect.