某大跨结构舒适度分析及振动控制

Comfort Analysis and Vibration Control of A Long-span Structure

通过介绍调谐质量消能器的特性,对某大跨结构的二层大跨度楼盖进行了舒适度分析,采用调谐质量消能器对大跨度楼盖进行减振设计。分析表明,调谐质量消能器有效改善了大跨楼盖的舒适度,减振前在人行荷载及跳跃荷载激励下大跨楼盖不满足舒适度要求,采用调谐质量消能器减振系统减振后,楼盖舒适度均满足设计要求,在类似的大跨楼盖结构具有良好的经济性与适用性。

The performance of TMD（tuned mass damper）was introduced.Comfort analysis and research were carried on large span floor on the second floor of the basketball hall,TMD were used in large span floor,and corresponding analysis and design of floor vibration. The analysis indicate that the comfort of large span floor is effectively improved and meets with standard in all human-induced load cases and human-jump load cases by use of TMD.TMD vibration decreasing system is economical and can be applied to the similar large-span floor structure.