[1]张尚荣,胡宇琛,谭金宝,等.随机地震激励下相邻隔震结构被动控制研究[J].自然灾害学报,2021,30(01):070-77.[doi:10.13577/j.jnd.2021.0107]
 ZHANG Shangrong,HU Yuchen,TAN Jinbao,et al.Passive control for adjacent isolated structure under random seismic excitation[J].,2021,30(01):070-77.[doi:10.13577/j.jnd.2021.0107]
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随机地震激励下相邻隔震结构被动控制研究
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《自然灾害学报》[ISSN:/CN:23-1324/X]

卷:
30
期数:
2021年01期
页码:
070-77
栏目:
出版日期:
2021-02-28

文章信息/Info

Title:
Passive control for adjacent isolated structure under random seismic excitation
作者:
张尚荣1 胡宇琛1 谭金宝1 刘芳兰1 谭平2
1. 宁夏大学 土木与水利工程学院, 宁夏 银川 750021;
2. 广州大学 工程抗震研究中心, 广东 广州 510405
Author(s):
ZHANG Shangrong1 HU Yuchen1 TAN Jinbao1 LIU Fanglan1 TAN Ping2
1. School of Civil and Hydraulic Engineering, Ningxia University, Yinchuan 750021, China;
2. Earthquake Engineering Research and Test Center of Guangzhou University, Guangzhou 510405, China
关键词:
相邻隔震结构Kelvin-Voigt模型被动优化控制平稳随机激励结构随机响应
Keywords:
adjacent isolated structureKelvin-Voigt modelpassive optimal controlstationary random excitationstructural stochastic response
分类号:
TU352.12;X9
DOI:
10.13577/j.jnd.2021.0107
摘要:
利用隔震结构和非隔震结构间的相互作用来减小地震作用下的结构响应,考虑地震激励的随机性,基于Clough-Penzien谱模型,推导了相邻结构随机响应的拓展状态方程,采用两种优化控制目标,分析得到了相邻隔震结构体系间连接控制装置的控制参数与结构随机响应的关系及其对控制效果的影响,并分别从地震响应时程和振动累计能量时程角度研究了相应地多自由度相邻隔震结构复合被动控制体系,在不同优化准则及不同控制方案下,结构体系的减震控制效果。研究结果表明,相邻隔震结构复合被动控制体系,可以获得较好的减震控制效果,阻尼系数在减震控制中起主要作用,但存在最优取值,并不是越大越好;采用以左、右子结构振动总能量最小为优化准则,在顶层+中间层安装控制装置的控制方案,可以有效地减小相邻结构的地震响应,得到的控制效果较好。
Abstract:
A control method for reducing structural response under seismic excitation was proposed by using the interaction between isolated structure and non-isolated structure. In this method, considering the randomness of seismic excitation, the extended state equation of random response of adjacent structures was derived based on Clough-Penzien spectral model. Then, using two optimization control objective, both the relationship between the control parameters and the structure random response of the adjacent isolation structures and its influence on the control effect were analyzed and obtained. Finally, under different optimization criteria and different control schemes,based on the seismic response time history and the accumulated vibration energy time history, the isolation control effect of the composite passive control system of adjacent isolated structures with corresponding multiple degrees of freedom is studied. The results show that the composite passive control system of adjacent isolated structures can achieve better shock absorption control effect, and the damping coefficient plays a major role in the shock absorption control, but there is an optimal value, and the bigger is not the better. When the minimum vibration energy of left and right substructures is adopted as the optimization criterion,The seismic response of adjacent structures can be effectively reduced and can get a good effect for control by adopting the installs control devices in the top and middle floors.

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备注/Memo

备注/Memo:
收稿日期:2019-12-25;改回日期:2020-08-13。
基金项目:"西部之光"人才培养计划(XAB2017AW09);宁夏自然科学基金项目(2019AAC03041);国家自然科学基金项目(51608283)
作者简介:张尚荣(1984-),男,讲师,博士,主要从事结构减震控制方面的研究.E-mail:sr_zhang@nxu.edu.cn
更新日期/Last Update: 1900-01-01