建筑物对地铁引发场地振动影响的实测分析

宗刚; 郑玉琴; 任晓崧; 张永红

doi:10.6052/j.issn.1000-4750.2017.06.S055

建筑物对地铁引发场地振动影响的实测分析

1.
同济大学土木工程学院结构工程与防灾研究所, 上海 200092;
2.
同济大学土木工程防灾国家重点实验室, 上海 200092

基金项目: 国家科技支撑计划课题项目（2015BAK17B04）

详细信息

作者简介:
宗刚(1977-),男,吉林人,讲师,博士,主要从事工程结构抗震防灾研究(E-mail:zong@tongji.edu.cn);郑玉琴(1992-),女,四川人,硕士生,主要从事工程结构抗震防灾研究(E-mail:zyqlyj323@163.com);张永红(1993-),男,重庆人,硕士生,主要从事工程结构抗震防灾研究(E-mail:1630750@tongji.edu.cn).

通讯作者:
任晓崧(1968-),男,上海人,教授,博士,主要从事工程结构抗震等领域的教学和科研工作(E-mail:rsx@tongji.edu.cn).

中图分类号: U211.3
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- 文章访问数: 250
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- PDF下载量: 31
出版历程
- 收稿日期: 2017-05-31
- 修回日期: 2017-11-19
- 刊出日期: 2018-06-29

In-situ measurement and analysis of the influence of a building on ground vibration induced by metro

1.
Research Institute of Structural Engineering and Disaster Reduction in College of Civil Engineering;Shanghai 200092, China;
2.
State Key Laboratory of Disaster Reduction Civil Engineering, Tongji University, Shanghai 200092, China

摘要

摘要: 选取上海某地铁沿线工程建设场地，先后开展了建设前自由场和建设后建筑—场地的振动实测，通过实测数据的时域、频域分析，对比研究了建筑物对场地振动的影响规律。结果表明：建筑物的质量对振动响应的影响较小，而地下室结构的墙、板构件对场地内传播的弹性波有显著的反射、阻隔作用。波的反射效应在地下室与轨线间局部区域形成能量聚焦区，导致地表振动响应放大，最高的放大率超过1倍以上；波的阻隔作用使地下室内形成振动能量的屏蔽区，振动响应减小，减小率超过45%。
- 地铁振动 /
- 振动实测 /
- 建筑影响 /
- 减振效应 /
- 波阻抗
Abstract: A construction field nearby a metro line was selected for vibration measurement. In situ measurements for free field vibration and building-field vibration were performed before and after the construction. The influence of the building on the ground vibration were studied by data analysis. The results show that the influence of the building's mass is weak on the ground vibration, while the reflection and obstruction of the walls and baseboard in the basement is prominent. The energy focus region is made by the wave reflection on the basement wall, so the ground vibration is amplified in some local region. The maximum amplification ratio is more than 100%. The energy shielding zone is made in the basement by the obstruction of the wall and baseboard and the vibration is reduced obviously. The minimum reduction ratio is still more than 45%.
- metro vibration /
- vibration measurement /
- building influence /
- vibration reduction /
- wave impedance

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参考文献(15)

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5.	谭佳，许炜萍，赵楚轩，王呼佳，杨朋，孙克国. 地铁过渡段结构振动响应特性与噪声分析. 城市轨道交通研究. 2021(05): 37-41+46 . 百度学术
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文章访问数: 250
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被引次数: 18

建筑物对地铁引发场地振动影响的实测分析

通讯作者: 任晓崧(1968-),男,上海人,教授,博士,主要从事工程结构抗震等领域的教学和科研工作(E-mail:rsx@tongji.edu.cn).

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出版历程

In-situ measurement and analysis of the influence of a building on ground vibration induced by metro

期刊类型引用(8)

其他类型引用(10)

计量

出版历程

目录

通讯作者:
任晓崧(1968-),男,上海人,教授,博士,主要从事工程结构抗震等领域的教学和科研工作(E-mail:rsx@tongji.edu.cn).