# [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] 点击复制 新型三维多功能隔振支座设计及其隔振分析() 分享到： var jiathis_config = { data_track_clickback: true };

44

2014年第4期

787-792

2014-07-16

## 文章信息/Info

Title:
Design of novel three dimension multifunctional isolation bearing and its isolation behavior analysis

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):
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

Keywords:

TB381;TU313.2
DOI:
10.3969/j.issn.1001-0505.2014.04.019

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.

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