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提出了一种新型基础隔震模型，即带限位装置的摩擦隔震体系 (S- LF)；基于此隔震模型，利用 Poincare映射法研究地面谐运动下 S- LF结构的运动特征；并利用高精度的精细时程积分法，通过对地震作用下 S- LF动力响应的计算，绘制了上部结构最大加速度反应谱和基底最大滑移量反应谱，并研究了各种结构参数对隔震的影响；通过与恢复力摩擦隔震系统 (R- FBI)和纯摩擦力滑移隔震系统 (P- F)的比较表明， S- LF的隔震性能优于 P- F和 R- FBI；最后通过对计算实例的分析发现，地震作用下 S- LF结构的层间最大剪力和最大绝对加速度反应分布较一般传统结构有很大区别。
A new type of base-isolation model is proposed, which is called S-LF with limit device. Based on this model, Poincare mapping method is used to study the motion characteristics of S- LF structure under ground harmonic motion. By using the precise time-integration method, the maximum acceleration response spectrum of the superstructure and the maximum slippage response spectrum of the superstructure were calculated through the calculation of the S-LF dynamic response under the earthquake. The influences of various structural parameters on the isolation The comparison between the R-FBI and P-F system shows that the isolation performance of S-LF is better than that of P-F and R-FBI Finally, through the analysis of calculation examples, it is found that the distribution of maximum shear and maximum absolute acceleration of S-LF structure under earthquake action is much different from the general structure.