[1]韩冰,梁建文.层状饱和场地中圆柱形基础的阻抗函数[J].地震工程与工程振动,2019,39(01):001-7.[doi:10.13197/j.eeev.2019.01.1.hanb.001]
 HAN Bing,LIANG Jianwen.Impedance functions of cylindrical rigid foundations embedded in layered, fluid-saturated, poroelastic half-spac[J].EARTHQUAKE ENGINEERING AND ENGINEERING DYNAMICS,2019,39(01):001-7.[doi:10.13197/j.eeev.2019.01.1.hanb.001]
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层状饱和场地中圆柱形基础的阻抗函数
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《地震工程与工程振动》[ISSN:/CN:]

卷:
39
期数:
2019年01
页码:
001-7
栏目:
论文
出版日期:
2019-02-28

文章信息/Info

Title:
Impedance functions of cylindrical rigid foundations embedded in layered, fluid-saturated, poroelastic half-spac
作者:
韩冰12 梁建文12
1. 天津大学 水利工程仿真与安全国家重点实验室, 天津 300354;
2. 天津大学 建筑工程学院土木工程系, 天津 300354
Author(s):
HAN Bing12 LIANG Jianwen12
1. State Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, Tianjin 300354, China;
2. Department of Civil Engineering, Tianjin University, Tianjin 300354, China
关键词:
三维层状场地饱和圆柱形基础阻抗函数孔隙流体场地动力特性
Keywords:
3D modellayered half-spacefluid-saturatedcylindrical foundationimpedance functionpore fluidsite dynamic characteristics
分类号:
TU375
DOI:
10.13197/j.eeev.2019.01.1.hanb.001
摘要:
本文利用间接边界元法,建立层状饱和场地中三维土-基础动力相互作用模型,研究了孔隙中流体的存在、场地动力特性和圆柱形基础的高度对基础阻抗函数的影响。数值结果表明,孔隙中流体的存在对基础阻抗函数有明显的影响,尤其是水平和竖向分量;场地动力特性也对基础阻抗函数有明显的影响,层状饱和场地中阻抗函数围绕相应均匀半空间结果振荡,且基岩与土层刚度比越大或土层厚度越小,振荡的幅度越大,土层厚度越小,振荡的周期越小;另外,基础高度也对阻抗函数有明显的影响,随基础高度增大,阻抗函数逐渐增大。
Abstract:
The effects of the presence of the pore fluid, the site dynamic characteristics and the height of the cylindrical rigid foundation on impedance functions are studied by a three-dimensional dynamic soil-foundation interaction model in layered, fluid-saturated, poroelastic half-space using the indirect boundary element method. It’s shown that the pore fluid has evident influences on impedance functions,especially for horizontal and vertical components. The site dynamic characteristics also have significant effects, and the impedance functions in layered, fluid-saturated, poroelastic half-space oscillate around those in corresponding uniform half-space, with larger oscillation amplitudes for larger bedrock stiffness and smaller soil layer thickness, and with smaller oscillation period for smaller soil layer thickness. In addition, the height of the foundation influences the impedance function significantly, with larger amplitudes for higher foundation.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2018-06-22;改回日期:2018-11-07。
基金项目:国家自然科学基金项目(51578372)
作者简介:韩冰(1987-),女,博士,主要从事地震工程研究.E-mail:hanbing@tju.edu.cn
通讯作者:梁建文。E-mail:liang@tju.edu.cn
更新日期/Last Update: 1900-01-01