SEISMIC RESPONSE ANALYSIS OF ISOLATED PROTECTION DEVICE WITH VARIABLE- STIFFNESS FOR BASE- ISOLATED BUILDINGS

Yang Lin; Zhou Xiyuan; Su Youpo; Chang Yongping

Volume 36 Issue 9

Dec. 2014

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Yang Lin, Zhou Xiyuan, Su Youpo, Chang Yongping. SEISMIC RESPONSE ANALYSIS OF ISOLATED PROTECTION DEVICE WITH VARIABLE- STIFFNESS FOR BASE- ISOLATED BUILDINGS[J]. INDUSTRIAL CONSTRUCTION, 2006, 36(9): 24-29.

Citation:

Yang Lin, Zhou Xiyuan, Su Youpo, Chang Yongping. SEISMIC RESPONSE ANALYSIS OF ISOLATED PROTECTION DEVICE WITH VARIABLE- STIFFNESS FOR BASE- ISOLATED BUILDINGS[J]. INDUSTRIAL CONSTRUCTION, 2006, 36(9): 24-29.

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SEISMIC RESPONSE ANALYSIS OF ISOLATED PROTECTION DEVICE WITH VARIABLE- STIFFNESS FOR BASE- ISOLATED BUILDINGS

1.
1. Beijing Key Lab of Earthquake Engineering and Structural Retrofit,Beijing University of Technology Beijing 100022;
2.
2. Earthquake Engineering Research Center of Hebei Province,Hebei Polytechnic University Tangshan 063009

Received Date: 2006-04-23
Publish Date: 2006-09-20

Abstract

Abstract

If the displacement of rubber bearing of base- isolated buildings, which is usually caused by some what resonance effect from long period ground motion, the additional stiffness components will work together with rubber bearings and then the possibility of further increase of the displacement of rubber bearing is suppressed and reaches the prescribed limitation because the natural period of the base isolation building has been changed. However the extra stiffness would let the story shear forces of the super-structure slightly increase. A mult-i particle structural analytic model is set up. The motion equations of three states of non- affixation, right affixation and left affixation are deduced, and the computer program is developed. On the basis of exemplary analysis for typical base- isolated building , the effectiveness of the device in limitation of developing large lateral displacement of rubber bearing is demonstrated and the way of choosing appropriate parameters for the protective device is discussed.
- base isolation,
- laminated rubber bearings,
- variable stiffness isolated protection

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References(6)

References

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F1M 1 Bruce, Meeri, E1V 1 Carlos. Seismic Analysis of Base-Isolated San Bernardino County Building. Earthquake Spectra, 1992, 18 (14) : 124-131

[3] 周锡元, 韩, 曾德民, 等. 具有软着陆保护的橡胶支座隔震体. 建筑结构学报, 2000, 21(5) : 3-11

[4] 韩, 周锡元. 基础隔震建筑软碰撞保护分析. 建筑学, 1999,15(1) : 14-20

[5] 吕云, 瞿伟廉, 涂建维. 建筑结构地震反应的智能震控制. 武汉理工大学学报, 2002, 24(4) : 20-25

[6] 沈聚敏 , 周锡元, 高小旺, 等. 抗震工程学. 北京: 中建筑工业出版社, 2000

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