Dynamic characteristics and seismic response of adjacent buildings linked by discrete dampers

W. S. Zhang, You Lin Xu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

131 Citations (Scopus)

Abstract

Coupling adjacent buildings using discrete viscoelastic dampers for control of response to low and moderate seismic events is investigated in this paper. The complex modal superposition method is first used to determine dynamic characteristics, mainly modal damping ratio and modal frequency, of damper-linked linear adjacent buildings for practical use. Random seismic response of linear adjacent buildings linked by dampers is then determined by a combination of the complex modal superposition method and the pseudo-excitation method. This combined method can effectively and accurately determine random seismic response of non-classically damped systems in the frequency domain. Parametric studies are finally performed to identify optimal parameters of viscoelastic dampers for achieving the maximum modal damping ratio or the maximum response reduction of adjacent buildings. It is demonstrated that using discrete viscoelastic dampers of proper parameters to link adjacent buildings can reduce random seismic responses significantly.
Original languageEnglish
Pages (from-to)1163-1185
Number of pages23
JournalEarthquake Engineering and Structural Dynamics
Volume28
Issue number10
DOIs
Publication statusPublished - 1 Jan 1999

Keywords

  • Adjacent buildings
  • Analytical method
  • Discrete damper
  • Modal damping ratio
  • Parametric study
  • Seismic response

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Earth and Planetary Sciences (miscellaneous)

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