Optimization design method for tuned viscous mass dampers based on the energy balance principle

被引：0
|
作者：
Pei X. [1 ]
Qiu J. [2 ]
Fu T. [1 ]
机构：
[1] School of Civil Engineering and Architecture, Jiangsu University of Science and Technology, Zhenjiang
[2] International Century Design of Architecture Co., Ltd., Changzhou
来源：
Zhendong yu Chongji/Journal of Vibration and Shock | 2017年 / 36卷 / 19期
关键词：
Energy balance equation; Energy dispersion coefficient; Optimized arrangement; Prediction formula; Simplified formula; Tuned viscous mass damper;
D O I：
10.13465/j.cnki.jvs.2017.19.005
中图分类号：
学科分类号：
摘要：
A multi-layer steel frame structure equipped with tuned viscous mass dampers was designed and its mechanical models were proposed. The energy balance equation was established and the expressions for the elastic vibration energy of the structure and dampers as well as the energy dissipation of viscous dampers were presented. Prediction formulas for the shear coefficients and story drifts were derived.Simplified formulas for the energy dispersion coefficients of mass dampers and viscous dampers were put forward. A time history analysis validated the accuracy of the prediction and simplification. Optimized arrangements of dampers to meet different requirements were obtained according to the different linear combinations of displacement reduction rate and acceleration reduction rate. It is concluded: the simplified formulas can match well with the real energy dispersion coefficients and the prediction curves can envelope and match well with the results of the time history analysis. When the structure parameters reach an optimal condition, i.e., mass ratio 0.2, stiffness ratio 0.8 and dampers' damping ratio 0.8, the structure seismic performance will be the best in various application conditions. © 2017, Editorial Office of Journal of Vibration and Shock. All right reserved.
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页码：29 / 35
页数：6
相关论文
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