摩擦悬吊式TMD设计及其风振控制效果

Design of frictional pendulum TMD and its wind control effectiveness

为了减轻河南艺术中心标志塔的风致振动,设计了一种新型的摩擦悬吊式TMD。文章首先详细介绍了所设计摩擦悬吊式TMD的构造和等效分析模型。然后,利用SAP2000中的LINK单元来模拟所设计的摩擦TMD,对其风振控制效果进行了非线性分析。分析结果表明:所设计的摩擦悬吊式TMD,在设计风荷载作用下,可以按照控制效果最优的原则选出最优摩擦力,而所选出的最优摩擦力能保证在0.3至2.0倍设计风荷载范围内的风荷载作用下控制效果基本达到40%以上。

To mitigate the wind-reduced vibration of Henan Art Center Symbolic Tower, a new type of frictional pendulum TMD is designed. The design of frictional pendulum TMD and its equivalent analysis model is presented in detail. The self-designed frictional pendulum TMD is modeled by using non-linear LINK unit. Then, the non-linear analysis of wind control effectiveness of frictional pendulum TMD is carried out. The analysis results demonstrate that the optimal frictional force can be chosen according to the design wind loads and the control effectiveness can be over 40% with the chosen frictional force under 0.3 to 2 times the designed wind loads.