Analytical solution of one-dimensional periodic base band gap and its optimal design

被引：0
|
作者：
Wu Q.-Y. [1 ,2 ]
Xiang F.-J. [2 ]
Huang Y.-H. [3 ]
Jing G.-Q. [1 ]
Xu Z.-F. [2 ]
Wu Y.-X. [4 ]
机构：
[1] State Key Laboratory for Health and Safety of Bridge Structures, Wuhan
[2] School of Civil Engineering and Architecture, Wuhan Institute of Technology, Wuhan
[3] China Power Construction Engineering Consulting Central Southern Co.，Ltd., Wuhan
[4] College of Civil Engineering of Fuzhou University, Fuzhou
来源：
Zhendong Gongcheng Xuebao/Journal of Vibration Engineering | 2024年 / 37卷 / 05期
关键词：
approximate solution; band gap; optimal design; periodic foundation; vibration reduction;
D O I：
10.16385/j.cnki.issn.1004-4523.2024.05.006
中图分类号：
学科分类号：
摘要：
The band gap characteristics of periodic structures provide a new idea for the field of seismic isolation in civil engineering，among which the one-dimensional periodic foundation structure has garnered significant attention due to its simple structure and economical applicability. In this paper，by studying the vibration characteristics of the one-dimensional periodic base structure，an approximate analytical solution for calculating the one-dimensional rubber-concrete periodic base band gap is derived，and on this basis，a one-dimensional rubber-concrete periodic foundation optimization design method based on the resonance zone of the superstructure is proposed. Numerical examples in the frequency domain and time domain show that the periodic foundation designed by this optimization method can ensure a good damping effect of its superstructure in a wide and continuous frequency range. © 2024 Nanjing University of Aeronautics an Astronautics. All rights reserved.
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页码：780 / 788
页数：8
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