Paper Title:
Connecting Parameter Study on Adjacent Structures Linked by Dampers
  Abstract

In order to research the optimal parameters of dampers linking adjacent structures for seismic mitigation, two SDOF systems connected with visco-elastic damper (VED) are taken as research object and the primary structural vibration frequency ratio, connection stiffness and linking damping ratio as research parameters. Modified Kanai-Tajimi spectrum is selected to model the earthquake excitation. The peak distribution of power spectral density curves are analyzed, then the formulas of structural mean squared displacement (MSD) and research parameters is derived based on random vibration theory. Then the relationship of the adjacent structural seismic response versus the research parameters was presented. The optimal value of the linking visco-elastic damper damping ratio and stiffness ratio are investigated. Finally, the seismic responses of example structures with or without connecting dampers are contrastively analyzed. The dependence of response mitigation effective on research parameters is highlighted. The results indicate fine earthquake-reduction effectiveness of dampers connecting adjacent structures. It is also shows that optimal parameters of damper cannot reduce the seismic responses of the primary structures connected to the best extent simultaneously. The damper parameters should be determined according to the best seismic mitigation effectiveness of the primary, auxiliary structure or the combined structure system.

  Info
Periodical
Advanced Materials Research (Volumes 243-249)
Edited by
Chaohe Chen, Yong Huang and Guangfan Li
Pages
3832-3838
DOI
10.4028/www.scientific.net/AMR.243-249.3832
Citation
H. S. Sun, L. N. Cheng, "Connecting Parameter Study on Adjacent Structures Linked by Dampers", Advanced Materials Research, Vols. 243-249, pp. 3832-3838, 2011
Online since
May 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Chao Pan, Da Gen Weng
Abstract:A new damping wall system is proposed to improve the seismic performance of high-rise coupling shear walls. The coupling beams of the...
4185
Authors: C.C. Lv, W.F. He, Yan Guo, W.G. Liu
Chapter 9: Earthquake Engineering and Earthquake Resistant Design
Abstract:Vibration control of a 22 story RC frame-shear wall apartment building with large aspect ratio was studied in this paper. Three vibration...
836