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VNUHCM Journal of

Science and Technology Development

An official journal of Viet Nam National University Ho Chi Minh City, Viet Nam since 1997

ISSN: 1859-0128
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COMPARE THE EFFICIENCY OF CONTROLLED STIFFNESS DAMPER WITH VARIABLE FRICTION DAMPER FOR SEISMIC PROTECTION OF BUILDING

Phuc Quang Bao Nguyen 1, *
Hoa Nhan Pham 2
Thang Quoc Chu 3

  1. VNU-HCM
  2. Hochiminh city University of Technology
  3. International University, VNU-HCM
Correspondence to: Phuc Quang Bao Nguyen, VNU-HCM. Email: pvphuc@hcmuns.edu.vn.
Volume & Issue: Vol. 12 No. 8 (2009) | Page No.: 81-89 | DOI: 10.32508/stdj.v12i8.2277
Published: 2009-04-28

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Copyright © 2009 by the author(s).

Copyright The Author(s) 2023. This article is published with open access by Vietnam National University, Ho Chi Minh city, Vietnam. This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0) which permits any use, distribution, and reproduction in any medium, provided the original author(s) and the source are credited. 

Abstract

The implementation of variable friction dampers (VFD) for vibration mitigation of seismic structures generally requires an efficient semi-active control law. In this paper, a semi-active modal control method is proposed to determine the controllable clamping force of a variable friction damper. A comparative study was performed on a multiple DOF structure controlled by passive friction dampers, variable friction dampers in subsection numerical examples. Finally, this paper also provides preliminary conclusions about the advantages and disadvantages for friction dissipators.

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