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利用慢变参数、时程分析和能量分析方法，探讨了铅芯橡胶减震支座（ＬＲＢ） 的非线性动力性态．结果表明，ＬＲＢ 具有强非线性特性，采用ＬＲＢ 能有效地降低系统的谐振峰值，但将增加系统的高阶振型．ＬＲＢ的合理配置，可减少系统地震能量的输入，这是ＬＲＢ减震的主要原因
Using slow-varying parameters, time-history analysis and energy analysis methods, the nonlinear dynamic behavior of the lead-rubber shock-absorbing bearing (LRB) was investigated. The results show that LRB has strong nonlinear characteristics. Using LRB can effectively reduce the resonant peak of the system, but it will increase the higher order mode of the system. The rational configuration of LRB can reduce the input of system seismic energy, which is the main reason for LRB damping.