[提要]  对基础隔震模型振动台试验中使用的铅芯橡胶支座性能进行了试验研究，在振动台试验前后分别对所使用的橡胶支座做了性能试验，研究了单个支座性能试验结果与模型中支座的性能关系。对振动台试验初始工况和模型经历数十个地震动输入工况后橡胶支座的性能作了研究。分析的主要参数有铅芯橡胶支座的屈服后水平刚度、屈服荷载及支座水平力-位移滞回曲线。分析结果可供采用铅芯橡胶支座的基础隔震房屋分析和设计时参考。
[关键词]  铅芯橡胶支座  支座性能试验振动台试验  支座性能

Bearing test is a key issue in the design of any isolated structures.Test studies are performed to investigate the properties of the lead rubber bearing utilized in a model shaking table test. Bearing tests are conducted before and after shaking table test separately to estimate the difference of the bearing characteristics under the two cases. The performance of separate bearing test is compared with that of model bearing test to examine the bearing behavior in separate bearing and in model test. The properties are also stuclied under both the first and the last test consequence.
Keywords:  lead rubber bearing; bearing test; shaking table test; bearing properties