高层建筑竖向隔震可行性分析
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（苏州设计研究院股份有限公司，苏州215021）[摘要] 竖向地震动接近于高频振动，竖向隔震就是通过减小结构竖向刚度使得结构自振周期增大，避开竖向地震动的卓越周期，从而降低地震作用，即建筑结构竖向隔震要求结构竖向刚度存在薄弱层。工业机械中竖向隔振技术已经得到应用，但在建筑结构中，应用竖向隔震技术带来的结构整体稳定问题难以解决。[关键词] 竖向隔震;传递系数;卓越周期;静位移;稳定性中图分类号：TU973，TU352 文献标识码：A 文章编号：1002-848X(2013)S1-0590-03Feasibility analysis on vertical isolation for high-rise buildingsShen Zhenzhen(Abstract: Vertical ground motion is close to a high frequency vibration, and vertical vibration isolation is to makes structural free vibration period increases by reducing vertical stiffness of the structure, to avoid vertical ground motion period, so as to reduce the earthquake effect. The structure vertical vibration isolation requires that the vertical stiffness has weak layer. Vertical vibration isolation technology has been applied in mechanical industry. But in building structures, the application of vertical vibration isolation technology brings the problem of structural overall instability.Keywords: vertical vibration isolation; transfer coefficient; excellent cycle; static displacement; stability
