滚轴与橡胶垫隔震结构模型震动台试验研究

Experimental study on shaking table of model building with rollers and lead rubber bearing

建筑物平移时已经具备了设置隔震消能装置的条件,平移时用的滚轴不再取出,在建筑物下设计安装隔震橡胶垫,使滚轴与橡胶垫共同承受上部结构传来的荷载,并且在地震作用下共同起减震作用。对滚轴与橡胶垫隔震结构模型进行了震动台试验研究,通过输入不同大小和类型的地震波,分析隔震上部结构和隔震支座的地震反应。分析结果表明,滚轴与橡胶垫隔震结构的隔震效果明显,试验结果可以为隔震设计和加固中使用这种隔震结构及进一步的理论分析提供重要依据。

After the building.is moved , rubber bearings can easily be placed,which resist the loads of the superstructure and absorb the earthquake vibration together with the rollers. So shaking table tests on model building with rollers and lead rubber bearing were conducted under different earthquake waves. The paper analyses earthquake responses of the structural elements above the isolation layer and seismic isolator. The results indicate that the anti-vibrational capacity of the building with rollers and lead rubber bearing is improved significantly. The results of shaking table tests are useful for isolation design and theoretics analysis.