【摘要】 论述了在高层建筑结构中利用悬吊质量摆减震的原理并对其减震性能进行了研究.通过对具有不同悬吊质量摆的高层建筑结构的自振特性及反应谱法地震反应分析,得出在高层建筑结构顶部几层设置几个质量摆且质量摆的频率和结构的基频相近时减震效果最好.用反应谱法对悬吊结构进行地震反应分析时,所考虑的振型数应为结构的第一振型和相应于结构振动的前几个振型.更多还原

【Abstract】 The damping principle of high rise multistorey buildings equipped with suspension-mass pendulums was discussed and their damping performance was investigated.Through analysis of natural frequencies and seismic response by means of response spectrum method for such building structure with different suspension mass pendulums,it was concluded that optimal damping effect would be obtained when a few suspended mass pendulums with similar frequency as the structural basic frequency fixed on the top stories of the high building.When the structural seismic responses of suspension-mass pendulums were analyzed with response spectrum method,the vibration modal numbers considered were to be structural first vibration modal and previous vibration modals of structural vibration as well.更多还原