| 新型巨-子结构消能控制体系的动力特性及减震性能研究 |
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| 引用本文： | 李祥秀,刘爱文,刘良坤,李小军.新型巨-子结构消能控制体系的动力特性及减震性能研究[J].振动与冲击,2021(3):187-194. |
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| 作者姓名： | 李祥秀 刘爱文 刘良坤 李小军 |
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| 作者单位： | 中国地震局地球物理研究所;东莞理工学院;北京工业大学建筑工程学院 |
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| 基金项目： | 国家重点研发计划(2016YFC0803107,2017YFC1500404);中国地震局地球物理研究所基本科研业务费专项(DQJB19B43);国家自然科学基金(51608491)。 |
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| 摘 要： | 基于旋转惯容阻尼器(Rotation Inertia Damper,RID)具有实际物理质量小,且能提供较大阻尼力的特点,提出将RID应用到巨型结构体系,形成RID-巨-子结构消能控制体系.通过建立RID-巨-子结构消能控制体系的振动微分方程,分析RID参数(等效质量和等效阻尼系数)对系统动力特性的影响规律.在此基础上...
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| 关 键 词： | 巨-子结构控制体系 旋转惯容阻尼器 动力特性 减震性能 |
Dynamic characteristics and aseismic performance of a new mega-substructure energy-dissipating control system |
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| LI Xiangxiu,LIU Aiwen,LIU Liangkun,LI Xiaojun.Dynamic characteristics and aseismic performance of a new mega-substructure energy-dissipating control system[J].Journal of Vibration and Shock,2021(3):187-194. |
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| Authors: | LI Xiangxiu LIU Aiwen LIU Liangkun LI Xiaojun |
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| Affiliation: | (Institute of Geophysics,China Earthquake Administration,Beijing 100081,China;Dongguan University of Technology,Dongguan 523808,China;School of Civil Engineering,Beijing University of Technology,Beijing 100124,China) |
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| Abstract: | Due to rotation inertia damper(PID)having a small physical mass and providing a larger damping force,it was proposed to be used in mega-structure systems to form a new RID-mega-substructure energy-dissipating control system.The vibration differential equation of the new RID-mega-substructure energy-dissipating control system was established to analyze the influence law of RID parameters including equivalent mass and equivalent damping coefficient on dynamic characteristics of the new system.Then,the aseismic performance of the new system was studied from two aspects of structural time history response and random response.The study results showed that RID parameters can have different effects on natural frequencies and damping ratios of the new system;compared with a mega-substructure aseismic system,the new RID-mega-substructure energy-dissipating control system can effectively reduce seismic responses of a structural system under earthquake;the results can provide suggestions for aseismic design of mega-structure systems. |
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| Keywords: | mega-substructure control system rotation inertia damper(PID) dynamic characteristics aseismic performance |
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