华南理工大学学报(自然科学版) ›› 2006, Vol. 34 ›› Issue (7): 94-98.

• 土木建筑工程 • 上一篇    下一篇

框架—剪力墙基础隔震结构的地震扭转反应

袁兵1 黄炎生2 任立飞2 梁芳慧2   

  1. 1.广东工业大学 建设学院,广东 广州 510006;2.华南理工大学 建筑学院,广东 广州 510640
  • 收稿日期:2006-03-03 出版日期:2006-07-25 发布日期:2006-07-25
  • 通信作者: 袁兵(1969-),女,硕士,讲师,主要从事工程力学及其相关领域的研究. E-mail:yuanbing.cn@tom.com
  • 作者简介:袁兵(1969-),女,硕士,讲师,主要从事工程力学及其相关领域的研究.
  • 基金资助:

    广东省自然科学基金资助项目(032489);广州市科技攻关资助项目(2003Z3—D0221)

Seismic Torsional Response of Base-Isolated Structure with Frame-Shear Wall

Yuan Bing1  Huang Yan-sheng2  Ren Li-fei2  Liang Fang-hui2   

  1. 1.Faculty of Construction,Guangdong Univ.of Tech.,Guangzhou 510006,Guangdong,China; 2.College of Architecture and Civil Engineering,South China Univ.of Tech.,Guangzhou 510640,Guangdong,China
  • Received:2006-03-03 Online:2006-07-25 Published:2006-07-25
  • Contact: 袁兵(1969-),女,硕士,讲师,主要从事工程力学及其相关领域的研究. E-mail:yuanbing.cn@tom.com
  • About author:袁兵(1969-),女,硕士,讲师,主要从事工程力学及其相关领域的研究.
  • Supported by:

    广东省自然科学基金资助项目(032489);广州市科技攻关资助项目(2003Z3—D0221)

摘要: 为了研究框架一剪力墙基础隔震结构的地震扭转反应,建立了地震作用下高层框架剪力墙基础隔震结构的平移一扭转耦联振动模型和运动方程,分析了单轴偏心基础隔震结构的平移一扭转耦联地震响应,并探讨了不同偏心率下隔震结构的地震反应.结果表明:在结构设计中应合理调整隔震结构上部结构和隔震层的偏心率.只有在上部结构和隔震层的偏心率满足一定关系的情况下,采用基础隔震才能明显减小结构的扭转反应.

关键词: 框架一剪力墙, 基础隔震, 平移一扭转耦联, 偏心率

Abstract:

In order to investigate the seismic torsional response of base-isolated structures with frame-shear walls,the lateral-torsion coupling vibration model and the corresponding motion equation are formulated for the high-storey structure with frame-shear wall and isolated foundation under seismic action. The lateral-torsion eoupling seismic response of the uniaxial-eccentricity base-isolated structure is then analyzed,and the seismic responses of several base-isolated structures with various eccentricity ratios are discussed. The results show that the eccentricitv ratio of the superstructure to the base-isolated layer should be reasonably adjusted in the design of a structure,and that the torsional response of the base-isolated structure can be obviously reduced only when the eccentricity ratio satisfies a certain condition.

Key words: frame-shear wall, base isolation, lateral-torsion coupling, eccentricity ratio