Comparison of the Efficiency of Tuned Mass and Tuned Liquid Dampers at High-Rise Structures under Near and Far Fault Earthquakes

Document Type : Original Article

Authors

1 Assistant Professor, Faculty of Engineering, University of Mohaghegh Ardabili, Ardabil, Iran

2 Msc, Faculty of Engineering, University of Mohaghegh Ardabili, Ardabil, Iran

Abstract

Tuned mass and tuned liquid dampers are most common passive control systems that used for decrease of seismic responses of buildings. In this study, the performance of high-rise buildings with TM and TL dampers are evaluated under seven near-fault and seven far-fault earthquakes. For this purpose, a twenty-four stories steel moment frame building has been considered and the time history dynamic analyses are performed for both of controlled and uncontrolled states. Moreover, this building has been also modelled with five various mass, stiffness and damping ratios.The results have been shown that decreasing the structural responses at tall buildings against near-fault earthquakes are more than far-fault earthquakes due to the effect of higher modes. Furthermore, the tuned mass damper has better performance at decreasing of the responses in comparison of tuned liquid dampers.

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References

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Journal of Structural and Construction Engineering
Volume 3, Issue 4 - Serial Number 9
March 2017
Pages 105-119

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History

  • Receive Date: 21 May 2016
  • Revise Date: 27 September 2016
  • Accept Date: 21 December 2016

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