粘滞流体阻尼器减振技术在山西博物馆中的应用研究

The Application of Vibration Reduction Technique with Viscous Damper in Shanxi Museum

为克服山西博物馆由于特殊的建筑造型造成抗震不利的弱点,详细分析了原有结构的振动特性,找出了其存在的薄弱环节——结构的扭转效应比较大,特别是在大震作用下的层间位移过大,不满足规范要求,因此,结构设计时,采用减振技术,在二、三、四层布置了粘滞阻尼器,以减少结构的地震反应,尤其是在大震时的地震反应。通过计算,采用粘滞阻尼器减振技术后,结构在罕遇地震作用下的地震反应明显降低,尤其是扭转地震反应降低了42%,最大层间位移角为1/244,达到了国家规范的要求。

In order to overcome earthquake-resistant weaknesses of Shanxi Museum due to its unique mould, this paper firstly studied its vibration characteristics and found its structural weaknesses torsion effect being larger and particularly the displacement between adjacent floors under strong earthquake being much larger than the national code limitation. Then the vibration reduction technique was applied to the structure, which is the viscous dampers were arranged in the second, third and fourth floors of the building to reduce the earthquake especial strong earthquake action. The results show that duction technique had been greatly re displacement angle between adjacent its requirements of the national code its structural earthquake responses by using the vibration reduced, especially torsion response by 42% and the maximum floors under strong earthquake to 1/244. As the result, all had been reached.