Horizontal vibration of an embedded rigid cylindrical foundation in viscoelastic soil

被引：0
|
作者：
Zheng C. [1 ,2 ]
He Y. [1 ,2 ]
Gan S. [3 ]
Luan L. [4 ]
机构：
[1] Fujian Provincial Key Laboratory of Advanced Technology and Informatization in Civil Engineering, Fujian University of Technology, Fuzhou
[2] School of Civil Engineering, Fujian University of Technology, Fuzhou
[3] Power China Huadong Engineering Co., Ltd., Hangzhou
[4] Ocean, University of China, Qingdao
来源：
Tumu Gongcheng Xuebao/China Civil Engineering Journal | 2023年 / 56卷 / 11期
关键词：
amplification factor; horizontal loading; rigid foundation; viscoelastic half-space;
D O I：
10.15951/j.tmgcxb.22060590
中图分类号：
学科分类号：
摘要：
Considering the dynamic interaction between the side of embedded foundation and the subsoil, the horizontal vibration characteristics of a rigid cylindrical foundation embedded in viscoelastic half space are theoretically investigated. Based on the elastodynamic theory, the governing equations of the viscoelastic soil and foundation are established, then the analytical solution for the horizontal dynamic response factor and dynamic impedance of the rigid foundation are obtained by employing Hankel integral transformations and considering the mixed boundary value conditions. The proposed solution is compared with the existing solutions to verify its rationality, then a parametric study is presented to investigate the influence of relevant parameters on the horizontal dynamic response factor and dynamic impedance. The numerical results show that: the horizontal dynamic response factor and impedance are obviously affected by the embedment ratio of the foundation and relative stiffness of the soil, while the contribution ratio of the side soil impedance to the total dynamic impedance becomes more prominent. The damping ratio and Poisson's ratio of soil have significant effects on the stiffness coefficient of foundation. The influence of damping ratio increases with the dimensionless frequency of the excitation, while the influence of Poisson's ratio decreases in the low and high frequency range. © 2023 Editorial Office of China Civil Engineering Journal. All rights reserved.
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页码：155 / 164
页数：9
相关论文
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