摩擦板-弹簧地下室顶板与基础顶面隔震对比

Comparison of Vibration Isolation System of Friction Plate-Spring Basement Roof and Top Surface of Foundation

从理论上分析了干摩擦板-复位弹簧隔震系统的隔震性能,根据拉格朗日方程推导了结构无隔震系统、地下室顶板与基础顶面分别设置隔震系统地震动力反应分析计算公式。分析与计算结果表明:结构设置减震系统后楼层位移、层间位移、速度及加速度明显减小。在基础顶面设置隔震系统比地下室顶板设置隔震系统具有较好的隔震效果。

The vibration isolation performance of isolation system of dry friction plate-return spring was analyzed theoretically.The formula of seismic dynamic response analysis of isolation system was deduced according to Lagrange,which was set up by structure vibration isolation system,the basement roof and top surface isolation respectively.The results of analysis and calculation decreases obviously after setting structural damping system.The effect of setting isolation system of the top surface is better than setting isolation system of the basement roof.