利用TMD系统进行多维减震的一个新方法

A new method for vertical damping with TMD system

介绍了利用顶部调谐质量阻尼器系统不但进行水平减震,还能同时进行竖向减震的一种新方法,是对TMD系统在多维减震新方法的探讨,并提出TMD多维减震系统计算模型。运用有限元软件SAP2000对某16层钢筋混凝土框架结构建立模型,竖向TMD子结构、水平TMD结构不同质量、刚度、阻尼下,对建筑物进行竖向地震作用的时程分析。结果表明,在最佳TMD子结构、TMD结构及建筑物质量、刚度、阻尼比时,减震效果达到最好,竖向减震达到30.1%~65.5%,竖向减震效果良好。

In this paper a new method is introduced not only for horizontal damping but also for vertical damping simultaneously by using top tuned mass damper system,and a new method of TMD system for multi-dimensional damping and proposed TMD multidimensional damping system calculation model is discussed.A model of a 16-story reinforced concrete frame structure is built by using finite element software SAP2000,and the time-history analysis of building vertical TMD substructure and horizontal TMD structure with different mass,stiffness and damping under vertical seismic action is performed.The result shows that the damping effect achieves the best at the optimal TMD substructure,TMD structure and building quality,stiffness and damping ratio,and the vertical damping effect is good when vertical damping reaches 30.1%~65.5%.