多层建筑结构水平剪扭-竖向地震反应的智能复合隔震控制  

Torsional-vertical seismic response control of multi-story structure with intelligent compound base-isolation system

作　　者：瞿伟廉[1] 周强[1] 苏经宇[2] 苏幼坡[3] 陈波[1] 

机构地区：[1]武汉理工大学土木工程与建筑学院,湖北武汉430070 [2]中国建筑科学研究院工程抗震研究所,北京100013 [3]河北理工学院河北省地震工程研究中心,河北唐山063009

出　　处：《地震工程与工程振动》2003年第5期187-195,共9页Earthquake Engineering and Engineering Dynamics

基　　金：国家自然科学基金重点项目(50038010);国家自然科学基金项目(50278093)

摘　　要：本文在提出了"碟形弹簧-橡胶隔震垫"和MR阻尼器组合而成的智能复合隔震系统的基础上,建立了智能复合隔震系统对多层建筑结构"水平剪扭-竖向"地震反应控制的设计计算方法。提出了智能复合隔震系统对建筑结构水平地震反应的模糊半主动控制策略和对建筑结构竖向地震反应的被动控制方法。以一个五层框架结构为例进行了仿真分析。分析结果表明,本文提出的智能复合隔震系统是一种十分简单和有效的隔震系统。它可克服建筑结构常规隔震系统的两个主要缺点,有效地抑制多层建筑结构的多维地震反应。The intelligent compound baseisolation system consisting of disk spring, rubber isolator and magnetorheological (MR) damper is proposed in the paper. According to the mechanic characteristics of the system, the computational method of torsionalvertical seismic response control of multistory structure is established. Then fuzzy semiactive control strategy is proposed to control horizontal seismic response and passive control method is used to reduce the vertical response. Taking a fivestory frame structure as an example, an extensive simulation analysis is carried out. The numerical results show that the proposed intelligent compound baseisolation system can overcome two inherent defects of common baseisolation system and effectively reduce multidimensional seismic response of the structure.

关 键 词：碟形弹簧 橡胶隔震垫 MR阻尼器 智能复合隔震系统 水平剪扭-竖向 地震反应控制 

分 类 号：P315.9[天文地球—地震学] TU973.31[天文地球—固体地球物理学]