华南理工大学学报(自然科学版) ›› 2003, Vol. 31 ›› Issue (7): 52-57.

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变刚度半主动控制结构的地震影响系数分析

刘汾涛 魏德敏 吴波   

  1. 华南理工大学建筑学院,广东 广州 510640
  • 出版日期:2003-07-20 发布日期:2022-09-27
  • 通信作者: 刘汾涛(1973一),女,硕士生,主要从事结构振动控制研究.
  • 作者简介:刘汾涛(1973一),女,硕士生,主要从事结构振动控制研究.
  • 基金资助:
    国家自然科学基金“九五”重大项目资助(5989541o)

Analysis of Seismic In fluence Coefficient of Structres with Active Variable Stiffness Systes#br#

  1. CoHege of Architecture and Civil Engineering,S0utIl China Univ.of  ech.Guangzhou 510640,China
  • Online:2003-07-20 Published:2022-09-27
  • Contact: 刘汾涛(1973一),女,硕士生,主要从事结构振动控制研究.
  • About author:刘汾涛(1973一),女,硕士生,主要从事结构振动控制研究.

摘要: 对两种不同控制律下变刚度半主动控 制结构的地震影响系数进行了比较和分析.研究结果表明,控制律不同对受控结构各振型地震影响系数比的均值和标准差影响较小.此外,随着振型附加刚度比的增加,地震影响系数比的均值和标准差呈现逐渐增大的趋势,根据仿真分析结果,建立了该类有控结构地震影响系数比的定量计算方法 ,并在此基础上,对变刚度半主动控制结构的实用抗震设计提出了建议.

关键词: 半主动控制, 地震影响系数, 抗震设计

Abstract:

Seismic influence coefficients of structures with active variable stiffness (AVS) systems, corresponding to two different control laws, are compared and analyzed. Results show that the effect of control laws on the mean value and the standard deviation of the seismic influence coefficient ratios, corresponding to each mode of a controlled structure, is limited. With an increase in the modal additional stiffness ratio, the mean value and the standard deviation of the seismic influence coefficient ratio tend to

increase. Based on the simulation results, the determining method of the seismic influence coefficient ratio for controlled structures is proposed. Some suggestions on aseismic design of structures with AVS systems are also presented.

Key words: semi-active, control seismic influence, coefficient aseismic design

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