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Smart Materials Research
Volume 2012 (2012), Article ID 251543, 16 pages
http://dx.doi.org/10.1155/2012/251543
Research Article

Proposed Configurations for the Use of Smart Dampers with Bracings in Tall Buildings

1Department of Mechanical Engineering, Faculty of Engineering, Alexandria University (on leave), Alexandria, Egypt
2Department of Civil and Environmental Engineering, The University of Western Ontario, London, ON, Canada
3Department of Mechanical Engineering, Politecnico di Milano, Milan, Italy

Received 30 June 2011; Revised 15 December 2011; Accepted 15 December 2011

Academic Editor: Marcelo A. Trindade

Copyright © 2012 A. M. Aly Sayed Ahmed et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

This paper presents wind-induced response reduction in a very slender building using smart dampers with proposed bracings-lever mechanism system. The building presents a case study of an engineered design that is instructive. The paper shows that shear response and flexural response of tall buildings present two very different cases for vibration suppression. Smart dampers are implemented optimally in the building to reduce its response in the lateral directions for both structural safety and occupant comfort concerns. New bracings-lever mechanism configurations are proposed for the dampers to improve their performance. The study shows how the proposed configurations can enable application to flexural response and scenarios where the interstory drift is not enough for dampers to work effectively. In addition, a decentralized bang-bang controller improved the performance of the smart dampers.