Optimal design for rubber concrete layered periodic foundations based on the analytical approximations of band gaps and mapping relations

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外文摘要：The seismic performance of rubber concrete-layered periodic foundations are significantly influenced by their design,in which the band gaps play a paramount role.Aiming at providing better designs for these foundations,this study first proposes and validates the analytical formulas to approximate the bounds of the first few band gaps.In addition,the mapping relations linking the frequencies of different band gaps are presented.Furthermore,an optimal design method for these foundations is developed,which is validated through an engineering example.It is demonstrated that ensuring the superstructure's resonance zones are completely covered by the corresponding periodic foundation's band gaps can achieve satisfactory vibration attenuation effects,which is a good strategy for the design of rubber concrete layered periodic foundations.

外文关键词：

periodic foundationband gapvibration attenuationseismic isolationoptimal design

作者：

Wu Qiaoyun、Xu Zhifeng、Xu Peishan、Zeng Wenxuan、Chen Xuyong

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作者单位：

School of Civil Engineering and Architecture,Wuhan Institute of Technology,Wuhan 430073,China

State Key Laboratory for Health and Safety of Bridge Structures,Wuhan 430034,China

Wuhan Urban Construction Group Co.,Ltd.,Wuhan 430022,China

基金：

National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaOpen Projects Foundation of the State Key Laboratory for Health and Safety of Bridge StructuresDawn Program of Knowledge Innovation Project from the Bureau of Science and Technology of Wuhan MunicipalityScience Research Foundation of Wuhan Institute of Technology

项目编号：

5207839552178301BHSKL19-07-GF2022010801020357K2021030

出版年：

2024

DOI：

10.1007/s11803-024-2259-3

地震工程与工程振动(英文版)

中国地震局工程力学研究所

地震工程与工程振动(英文版)

影响因子：0.476

ISSN：1671-3664

年,卷(期)：2024.23(3)

参考文献量2