铅芯橡胶支座的隔震效果分析

Analysis of isolating affection about lead rubber isolation bearings

采用Wen微分滞回模型,代表铅芯橡胶隔震支座的非线性滞回恢复力特性,对基础隔震结构的隔震效果进行了分析。结果表明,Wen微分滞回曲线可以较为准确地反映铅芯橡胶隔震支座的本构关系,其隔震效果比较明显。

By using differential equation model to represent the nonlinear hysteretic restoring-foree character of the lead rubber isolation bearings, isolating affection of base-isolation building are studied. Analysis results indicate that differential equation model can represent hysteretic restoring-foree character of the lead rubber isolation bearings exactly, and base isolation has obviously seismic isolation effect.