Iterative Perturbation Methods for Isolation Structure Dynamic Model Responses Calculation with Non-Classical Damping and its Correlation Analysis

Abstract:

In this paper, on the base of considering building base isolation system stiffness distribution characteristics, the iterative perturbation methods for isolation structure dynamic calculation with non-classical damping are established systematically by using the upper and lower structure stiffness ratio as perturbation parameters. Theoretical derivation and examples show that the method can clearly realize effective separation between the super structure and isolation layer damping ratio and coupling among all variables. The calculation process is simple, stable and fast convergence. The calculated results are also accurate. At the same time, this paper also compares the method proposed in this paper with the classical damping method and analyses the influence of basic damping and the super structure damping on isolation structure dynamic response.

• Periodical: Advanced Materials Research (Volumes 415-417)
• Pages: 2172-2179
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.415-417.2172
• Online since: December 2011
• Authors: Xiang Zhen Li, Wei Ming Xiang, Huang Chang Fu, Yi Feng Xie
• Keywords: Isolation Structure, Iterative Perturbation, Non-Classical Damping

References

[1] Xiangzhen Li: Earthquake Engineering and Engineering,2005,25(3):163-166.In Chinese.

[2] Weiming Xiang, Xiangzhen Li: Earthquake Resistant Engineering and Retrofitting, 2004, 26(6) : 15-19. In Chinese.

[3] TAKEDA ZUICHI: Building isolation and vibration-proof and control [M].Beijing:China Architecture Industry Press,1997,4. In Chinese.

[4] Wenliang Wang, Zuorun Du: Structural Vibration and Dynamic Substructure Method [M]. Shanghai: Princeton University Press, 1985. In Chinese.

[5] Yonggang Guo, Naisi Qu, Yuxin Dong: Earthquake Engineering and Engineering Vibration, 1995,15(4):48-54. In Chinese.