中文摘要：

工业厂房中安装的动力设备易引发结构的振动,危害正常生产和结构安全。本文针对浮置平台隔振技术进行了相关研究,建立了两自由度隔振体系的力学模型,给出了考虑楼板刚度时振动的传递率,分析了不同隔振器刚度和楼板刚度对隔振效果的影响。对某实际工程进行了有限元建模分析,对比了隔振前后的楼板振动响应,隔振效果显著,且未改变动力设备振动的频谱特性,对设备的正常运行没有影响。对隔振后的厂房结构进行现场振动测试,楼面振动响应得到有效控制,满足相关规范要求,设备区域减振率达到70%-80%。

英文摘要：

Power equipment installed in industrial buildings is easy to cause vibration of structure,which is harmful to normal production and structure security. In this paper,research on floating platform vibration isolation technology is conducted. A two DOFs mechanical model is established,and transmissibility of vibration considering floor stiffness is calculated. Influence on vibration transmissibility with different floor stiffness and isolation stiffness is discussed. FEM model of a practical engineering is built and comparison between floor vibration with and without isolation is done. Significant vibration isolation effect can be seen from FEM result. The spectrum does not change and the equipment is not influenced. Site dynamic test is conducted on isolated building. Floor vibration is well controlled and the dynamic response matches related codes. Vibration of equipment zone has decreased 70% -80%.