| Seismic response control of a complex structure using multiple MR dampers： experimental investigation |
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| 引用本文： | 陈静,徐幼麟,瞿伟廉,吴志伦.Seismic response control of a complex structure using multiple MR dampers： experimental investigation[J].地震工程与工程振动(英文版),2004,3(2):181-193. |
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| 作者姓名： | 陈静 徐幼麟 瞿伟廉 吴志伦 |
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| 作者单位： | [1]ResearchCenterforUrbanHazardsMitigation,TheHongKongPolytechnicUniversity,HungHorn,Kowloon,HongKong,China／／CollegeofAutomation,WuhanUniversityofTechnology,Wuhan430070,China [2]CollegeofCivilEngineeringandArchitecture,WuhanUniversityofTechnology,Wuhan430070,China [3]ResearchCenterforUrbanHazardsMitigation,TheHongKongPolytechnicUniversity,HungHorn,Kowloon,HongKong,China |
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| 基金项目： | The Hong Kong Polytechnic University under Area of Strategic Development Programme in Structural Control and Intelligent Building,国家自然科学基金 |
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| 摘 要： | This paper presents an experimental investigation on semi-active seismic response control of a multistory building with a podium structure using multiple magnetorheological (MR) dampers manipulated by a logic control algorithm. The experiments are performed in three phases on a seismic simulator with a slender 12-story building model representing a multi-story building and a relatively stiff 3-story building model typifying a podium structure. The first phase of the investigation is to assess control performance of using three MR dampers to link the 3-story building to the 12-story building, in which seismic responses of the controlled two buildings are compared with those of the two buildings without any connection and with rigid connection. The second phase is to investigate reliability of the semi-active control system and robustness of the logic control algorithm when 2 out of 3 MR dampers fail and when the electricity supply to MR dampers is completely stopped. The last phase is to examine sensitivity of semi-active control performance of two buildings to change in ground excitation. The experimental results show that multiple MR dampers with the logic control algorithm can achieve a significant reduction in seismic responses of both buildings. The proposed semi-active control system is of high reliability and good robustness.
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| 关 键 词： | 地震响应 复合隔震结构 实验观测 MR阻尼器 逻辑控制 |
| 收稿时间： | 22 October 2004 |
| 修稿时间： | 2 November 2004 |
Seismic response control of a complex structure using multiple MR dampers: experimental investigation |
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| Chen?JingEmail author,Xu?Youlin,Qu?Weilian,Wu?Zhilun.Seismic response control of a complex structure using multiple MR dampers: experimental investigation[J].Earthquake Engineering and Engineering Vibration,2004,3(2):181-193. |
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| Authors: | Email author" target="_blank">Chen?JingEmail author Xu?Youlin Qu?Weilian Wu?Zhilun |
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| Institution: | Research Center for Urban Hazards Mitigation, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China;College of Automation, Wuhan University of Technology, Wuhan 430070, China;Research Center for Urban Hazards Mitigation, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China;College of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan 430070, China |
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| Abstract: | This paper presents an experimental investigation on semi-active seismic response control of a multistory building with a
podium structure using multiple magnetorheological (MR) dampers manipulated by a logic control algorithm. The experiments
are performed in three phases on a seismic simulator with a slender 12-story building model representing a multi-story building
and a relatively stiff 3-story building model typifying a podium structure. The first phase of the investigation is to assess
control performance of using three MR dampers to link the 3-story building to the 12-story building, in which seismic responses
of the controlled two buildings are compared with those of the two buildings without any connection and with rigid connection.
The second phase is to investigate reliability of the semi-active control system and robustness of the logic control algorithm
when 2 out of 3 MR dampers fail and when the electricity supply to MR dampers is completely stopped. The last phase is to
examine sensitivity of semi-active control performance of two buildings to change in ground excitation. The experimental results
show that multiple MR dampers with the logic control algorithm can achieve a significant reduction in seismic responses of
both buildings. The proposed semi-active control system is of high reliability and good robustness.
Supported by: The Hong Kong Polytechnic University under Area of Strategic Development Programme in Structural Control and
Intelligent Building; National Natural Science Foundation of China Under Grant NNSF-50038010 |
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| Keywords: | experimental investigation complex structure multiple MR dampers logic control seismic response |
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