[1]胡钟玮,徐赵东,管庆松,等.新型多维隔减震装置在高烈度区工程中的应用[J].东南大学学报(自然科学版),2020,50(3):425-432.[doi:10.3969/j.issn.1001-0505.2020.03.003]
 Hu Zhongwei,Xu Zhaodong,Guan Qingsong,et al.Application of novel multi-dimensional earthquake isolation and mitigation device for practical engineering in high intensity region[J].Journal of Southeast University (Natural Science Edition),2020,50(3):425-432.[doi:10.3969/j.issn.1001-0505.2020.03.003]
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新型多维隔减震装置在高烈度区工程中的应用()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
50
期数:
2020年第3期
页码:
425-432
栏目:
土木工程
出版日期:
2020-05-20

文章信息/Info

Title:
Application of novel multi-dimensional earthquake isolation and mitigation device for practical engineering in high intensity region
作者:
胡钟玮1徐赵东1管庆松12潘文2黄兴淮1潘鹏3
1东南大学土木工程学院, 南京 210096; 2震安减震科技股份有限公司, 昆明 650041; 3清华大学土木工程学院, 北京 100084
Author(s):
Hu Zhongwei1 Xu Zhaodong1 Guan Qingsong12 Pan Wen2 Huan Xinghuai1 Pan Peng3
1School of Civil Engineering, Southeast University, Nanjing 210096, China
2Quakesafe Technologies Co., Ltd., Kunming 650041, China
3School of Civil Engineering, Tsinghua University, Beijing 100084, China
关键词:
多维隔减震装置 黏弹性材料 性能试验 力学模型 地震响应
Keywords:
multi-dimensional earthquake isolation and mitigation device viscoelastic material characteristic test mechanical model earthquake responses
分类号:
TU318
DOI:
10.3969/j.issn.1001-0505.2020.03.003
摘要:
为提升建筑结构多方向的抗震能力,基于黏弹性材料的高耗能特性提出了一种由筒式阻尼器和隔震支座组成的新型多维隔减震装置,并应用于云南某小学的实际工程.首先通过试验得到筒式阻尼器的耗能特性,然后建立多维隔减震装置的力学模型和受控结构运动微分方程,通过对比计算研究装置的多方向隔减震效果.结果表明:装置中的筒式阻尼器具备较强的耗能能力,且其力学性能会随激励频率和幅值变化而变化;结构中加入新型装置后,水平和竖向的地震响应均得到有效控制;在EI Centro地震波作用下,与橡胶隔震结构相比,多维隔减震结构X方向和Y方向的最大隔震层位移分别降低39.5%和38.9%,X方向和Y方向结构最大层间位移分别降低39.4%和45.5%,Z方向最大位移和加速度响应分别降低12.2%和6.3%,说明新型多维隔减震装置可有效减轻结构多方向地震响应.
Abstract:
To improve the multi-directional earthquake resistance of building structures, a novel multi-dimensional earthquake isolation and mitigation device composed by several cylindrical dampers and an isolation bearing was proposed based on the high energy dissipation characteristics of viscoelastic material and applied to a practical engineering of a primary school in Yunnan. Firstly,the energy dissipation characteristics of the cylindrical damper were obtained by experiments. Then, the mechanical model of the novel device and the differential equation of the motion of the controlled structure were established. The multi-directional vibration isolation and mitigation effectiveness of the device was investigated by contrast calculation. The results indicate that the cylindrical damper has high energy dissipation capacity and its mechanical characteristics change with the change of the frequency and the displacement. After adding the novel device to the structure, the horizontal and vertical earthquake responses are both effectively controlled. Under the EI Centro wave, compared with the rubber-isolated structure, the maximum isolation layer displacements of the multi-dimensional isolation and mitigation structure in the X and Y directions decrease by 39.5% and 38.9%, and the structure’s maximum story drifts in the X and Y directions decrease by 39.4% and 45.5%, respectively. Furthermore, the maximum displacement and acceleration responses in the Z direction decrease by 12.2% and 6.3%, respectively. The novel device can effectively reduce the multi-directional earthquake responses of structures.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期: 2019-10-15.
作者简介: 胡钟玮(1995—),男,硕士生;徐赵东(联系人),男,博士,教授,博士生导师,xzdsubmission@163.com.
基金项目: 教育部长江学者特聘教授奖励计划资助项目、“十三五”国家重点研发计划“战略性国际科技创新合作”重点专项资助项目(2016YFE0200500)、国家“万人计划”科技创新领军人才资助项目、江苏省特聘教授资助项目.
引用本文: 胡钟玮,徐赵东,管庆松,等.新型多维隔减震装置在高烈度区工程中的应用[J].东南大学学报(自然科学版),2020,50(3):425-432. DOI:10.3969/j.issn.1001-0505.2020.03.003.
更新日期/Last Update: 2020-05-20