Research on mechanical properties of multi-dimensional vibration control damper

被引：0
|
作者：
Han Q. [1 ,2 ]
Guo F. [1 ]
Liu M. [1 ]
Lu Y. [1 ,2 ]
机构：
[1] School of Civil Engineering, Tianjin University, Tianjin
[2] Key Laboratory of Coast Civil Structure Safety of China Ministry of Education, Tianjin University, Tianjin
来源：
Jianzhu Jiegou Xuebao/Journal of Building Structures | 2019年 / 40卷 / 10期
关键词：
Dynamic analysis; Large span spatial structure; Mechanical property; Multi-dimensional vibration control damper; Static analysis;
D O I：
10.14006/j.jzjgxb.2019.0044
中图分类号：
学科分类号：
摘要：
Due to the multi-dimensional nature of the structural layout and the load applied to the structure, the response of large span spatial structures is also multi-dimensional. Unlike a truss structure, a single-layer reticulated large-span spatial structure is usually subjected to a multi-dimensional internal force combination. In this paper, a new type of multi-dimensional vibration control damper, which can provide the multi-dimensional stiffness for large span spatial structures, was presented. Through the analysis of the mechanical properties of the damper, a multi-dimensional stiffness formula of the damper was deduced. The theoretical formula program was written using MATLAB, the result of which was compared with the simulation results from ABAQUS. The static performance of the multi-dimensional damper was verified, and the energy dissipation capacity of the multi-dimensional damper and the effect of vibration reduction were discussed. The results show that the multi-dimensional vibration control damper can provide the multi-dimensional stiffness when subjected to static force, thus reducing the weakening of the structure caused by replacement of bars. Under the dynamic action, the damper can provide effective multi-dimensional vibration reduction for the large span spatial structure. After replacing the bar with a multi-dimensional vibration control damper, the peak value of vertical displacement of the structural node is decreased by 43.3%, and the vertical acceleration peak point of the structural node is decreased by 47.1%. © 2019, Editorial Office of Journal of Building Structures. All right reserved.
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页码：69 / 77
页数：8
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