[1]王维,李爱群,周德恒,等.新型三维多功能隔振支座设计及其隔振分析[J].东南大学学报(自然科学版),2014,44(4):787-792.[doi:10.3969/j.issn.1001-0505.2014.04.019]
 Wang Wei,Li Aiqun,Zhou Deheng,et al.Design of novel three dimension multifunctional isolation bearing and its isolation behavior analysis[J].Journal of Southeast University (Natural Science Edition),2014,44(4):787-792.[doi:10.3969/j.issn.1001-0505.2014.04.019]
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新型三维多功能隔振支座设计及其隔振分析()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
44
期数:
2014年第4期
页码:
787-792
栏目:
材料科学与工程
出版日期:
2014-07-16

文章信息/Info

Title:
Design of novel three dimension multifunctional isolation bearing and its isolation behavior analysis
作者:
王维12李爱群2周德恒3贾洪3陈美方3
1东南大学土木工程学院, 南京 210096; 2东南大学混凝土及预应力混凝土结构教育部重点实验室, 南京 210096; 3中铁建设集团有限公司, 北京 100131
Author(s):
Wang Wei12 Li Aiqun1 2 Zhou Deheng3 Jia Hong3 Chen Meifang3
1School of Civil Engineering, Southeast University, Nanjing 210096, China
2Key Laboratory of Concrete and Prestressed Concrete Structure of Ministry of Education, Southeast University, Nanjing 210096, China
3China Railway Construction Group Co., Ltd., Beijing 100131, China
关键词:
三维多功能隔振支座 地铁隔振 地震隔震 动力时程分析
Keywords:
three dimension multifunctional isolation bearing underground train vibration isolation earthquake isolation dynamic time history method
分类号:
TB381;TU313.2
DOI:
10.3969/j.issn.1001-0505.2014.04.019
摘要:
为了减小地铁运行引起的建筑振动、避免地震对结构的破坏作用,开发了一种新型三维多功能隔振支座(3D-MIB).首先,介绍了3D-MIB的结构构造与工作机理,提出其设计方法;其次,利用SAP2000软件建立了非隔振结构及设置有3D-MIB隔振结构的有限元模型;然后,对模型进行模态分析以及地铁和地震振动作用下的非线性动力时程分析,并采用加速度隔振率对3D-MIB的隔振效果进行评价.研究结果表明,3D-MIB 延长了结构水平和竖直方向的自振周期,对结构的振型影响较大.与非隔振结构相比,3D-MIB降低了地铁振动下隔振结构各层的水平和竖向加速度峰值,水平和竖向加速度隔震率为50%~70%;3D-MIB降低了罕遇地震作用下隔振结构的水平地震作用,除第1层和第2层外,其他各层的水平加速度隔震率均超过30%;3D-MIB放大了罕遇地震作用下隔振结构各层的竖向加速度响应,结构各层竖向加速度峰值的放大系数为2~5.
Abstract:
In order to reduce the building vibration induced by underground trains and avoid destroying effect caused by earthquakes, a novel three dimension multifunctional isolation bearing(3D-MIB)is prepared. First, the structural construction and working mechanism of the 3D-MIB are introduced, and the design method of the 3D-MIB is proposed. Secondly,two finite element models,a non-isolation structure model and an isolation structure model with the 3D-MIB,are established by using the software SAP2000. Then, the modal analysis and the nonlinear time history analysis under motions induced by both underground trains and earthquakes are investigated. The acceleration isolation ratios are chosen to evaluate the isolation property of the 3D-MIB. The results show that the 3D-MIB can extend the horizontal and vertical natural vibration periods, which has great influence on the structure vibration model. Compared with the non-isolation structure model, the 3D-MIB reduces the peak horizontal and vertical acceleration responses of the isolation structure model induced by underground train motions. The horizontal and vertical acceleration isolation ratios of each storey are 50% to 70%. The 3D-MIB is useful in isolating horizontal vibration induced by rare earthquakes. The horizontal acceleration isolation ratio of each storey, except storey 1 and 2, is more than 30%. Besides, the 3D-MIB can amplify the vertical acceleration responses of the isolation structure model under rare earthquakes, and the amplified coefficient of the vertical acceleration of each storey is 2 to 5.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期: 2014-02-25.
作者简介: 王维(1985—),男,博士生;李爱群(联系人),男,博士,教授,博士生导师, aiqunli@seu.edu.cn.
基金项目: “十一五”国家科技支撑计划资助项目(2006BAJ03A04)、国家自然科学基金资助项目(51278104)、中央高校基础科研业务费专项资金资助项目(3205003904).
引用本文: 王维,李爱群,周德恒,等.新型三维多功能隔振支座设计及其隔振分析[J].东南大学学报:自然科学版,2014,44(4):787-792. [doi:10.3969/j.issn.1001-0505.2014.04.019]
更新日期/Last Update: 2014-07-20