基于新型支座的地铁上盖高层建筑基础隔振模型试验研究

汤康生; 吴燕; 盛涛; 陈晓明

doi:10.13204/j.gyjzG20052403

基于新型支座的地铁上盖高层建筑基础隔振模型试验研究

doi: 10.13204/j.gyjzG20052403

汤康生¹,
吴燕²,
盛涛^1, ,,
陈晓明¹

1. 宁波大学土木与环境工程学院, 浙江宁波 315211;
2. 宁波市轨道交通物产置业有限公司, 浙江宁波 315101

基金项目:

浙江省自然科学基金项目（LY18E080011）；宁波市自然科学基金项目（2019A610402）。

详细信息

作者简介:
汤康生,男,1997年出生,硕士研究生。

通讯作者:
盛涛,男,博士,副教授,shengtao@nbu.edu.cn。

计量
- 文章访问数: 116
- HTML全文浏览量: 25
- PDF下载量: 1
- 被引次数: 0
出版历程
- 收稿日期: 2020-05-24
- 网络出版日期: 2021-09-16
- 刊出日期: 2021-09-16

EXPERIMENTAL RESEARCH ON BASE ISOLATION MODEL OF OVER-TRACK HIGH-RISE BUILDINGS USING A NEW TYPE OF BEARING

1. College of Civil and Environment Engineering, Ningbo University, Ningbo 315211, China;
2. Ningbo Rail Transit Property Co. Ltd., Ningbo 315101, China

摘要

摘要: 设计一种竖向刚度可精确调节的新型支座。以某地铁上盖高层建筑为原型建立1∶10缩尺模型，输入地铁和道路交通环境振动激励，分析基于新型支座的基础竖向隔振实际效果。试验结果表明：1）调整砂颗粒和橡胶颗粒的填充配合比，可实现新型支座的竖向刚度精确调节，最大误差不超过3%；2）地铁激励下高层建筑的室内振动沿楼层向上呈不规则波动变化趋势；3）应用基础竖向隔振措施后，各层楼面的竖向振级差值变小，不规则波动的变化趋势变平缓；4）基础竖向隔振措施可显著提升高层建筑的室内舒适度，楼盖的1/3倍频程分频振级最大降低15 dB，且所有楼层均满足规范舒适度要求；5）新型支座由于颗粒材料自带的摩擦耗能特性，使得基础隔振结构对道路交通引起的低频环境振动也具有较好的抗干扰性，可抑制共振现象。
- 新型支座 /
- 地铁 /
- 竖向隔振 /
- 高层建筑 /
- 舒适度
Abstract: A new type of bearing with vertical stiffness that can be adjusted precisely was designed. A 1/10 scale model was established on the basis of a high-rise building above a subway, and the vibration excitation of subway and road traffic environment was input, and the actual effect of vertical vibration isolation based on the new type of bearing was analyzed. The test results showed:1) the mix proportion of sand particles and rubber particles was adjusted, and the vertical stiffness of the new bearing could be precisely adjusted with a maximum error of no more than 3%; 2)the trend of irregular fluctuations of indoor vibration of high-rise buildings under the excitation of the subway upward along the floor was presented; 3)after applying the basic vertical vibration isolation measures, the vertical vibration level difference of each floor became smaller, and the trend of irregular fluctuations became gentle; 4)after the implementation of the basic vertical vibration isolation measures, the indoor comfort of the high-rise building had been significantly improved, and the floor 1/3 octave frequency division vibration level was reduced by a maximum of about 15 dB, and all floors had met the standard comfort requirements;5) the new bearing was affected by the friction energy dissipation among sand grains, which led to the base isolation structure had a stronger anti-interference resistance to low-frequency environmental vibration caused by road traffic and could suppress resonance phenomena.
- a new type of bearing /
- subway /
- vertical vibration isolation /
- high-rise buildings /
- comfort

HTML全文

参考文献(20)

[1]	谢伟平, 赵娜, 何卫, 等. 地铁上盖物业振动舒适度分析[J]. 土木工程学报, 2013, 46(6):90-96.
[2]	刘维宁, 马蒙. 地铁列车振动环境影响的预测、评估与控制[M].北京:科学出版社, 2014.
[3]	朱利明, 王成龙, 蓝天, 等. 地铁运行引起的南京鼓楼振动测试与分析[J]. 建筑结构学报, 2018, 39(增刊1):291-296.
[4]	闫维明, 张向东, 任珉, 等. 地铁平台上建筑物竖向振动测试与分析[J]. 北京工业大学学报, 2008, 34(8):836-841.
[5]	岳建勇. 地铁交通引起的建筑物振动实测与数值模拟分析[J]. 岩土力学, 2020, 41(8):1-9.
[6]	TOOME M, LOVE J S. Subway Train-Induced Noise and Vibration in Buildings:Predictions and Measurements[J]. Canadian Acoustics Acoustique Canadienne, 2017, 45(3):164-165.
[7]	ZOU C, WANG Y M, JAMES A M, et al. Train-Induced Field Vibration Measurements of Ground and Over-Track Buildings[J]. Science of The Total Environment, 2017, 575:1339-1351.
[8]	申跃奎, 张涛. 地铁振动在建筑物中的传播和砂垫层减振研究[J]. 工业建筑, 2010, 40(10):49-53.
[9]	李爱群, 王维. 三维多功能隔振支座设计及其在地铁建筑减振中的应用[J]. 地震工程与工程振动, 2014, 34(2):202-208.
[10]	WOO K H, LEE C H. A Study on Safety and Impact on Subway by Application of Vibration-Proof Mat[J]. Journal of the Korea Safety Management and Science, 2019, 21(3):17-21.
[11]	SHENG T, SHI W X, SHAN J Z, et al. Base Isolation of Buildings for Subway-Induced Environmental Vibration:Field Experiments and a Semi-Analytical Prediction Model[J]. The Structural Design of Tall and Special Buildings, 2020, 29(16). DOI: 10.1002/tal.1798.
[12]	SHENG T, BIAN X C, LIU G B, et al. Experimental Study on the Sandbag Isolator of Buildings for Subway-Induced Vertical Vibration and Secondary Air-Borne Noise[J]. Geotextiles and Geomembranes, 2020, 48(4):504-515.
[13]	夏倩, 屈文俊, 商晓东. 地铁振动对既有砌体结构影响的试验研究[J]. 振动与冲击, 2013, 32(12):11-16.
[14]	丁洁民, 尹志刚. 地铁引起建筑物振动舒适度分析[J]. 振动与冲击, 2008, 27(9):96-99.
[15]	楼梦麟, 李守继. 地铁引起建筑物振动评价研究[J]. 振动与冲击, 2007, 26(8):68-71.
[16]	周颖, 吕西林. 建筑结构振动台模型试验方法与技术[M]. 北京:科学出版社, 2016:8-12.
[17]	中华人民共和国住房和城乡建设部. 混凝土物理力学性能试验方法标准:GB/T 50081-2019[S]. 北京:中国建筑工业出版社, 2019:5-11.
[18]	国家环境保护局.城市区域环境振动标准:GB 10070-1988[S]. 北京:中国标准出版社, 1989.
[19]	贾文博. 紧邻地铁隧道的高层建筑物振动响应分析及控制技术研究[D]. 北京:北京交通大学, 2019:41-43.
[20]	International Organization for Standardization. Mechanical Vibration and Shock Evaluation of Human Exposure to Whole Body Vibration, Part 1:General Requirements:ISO 2631-1[S]. Geneva:ISO, 1997.