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Tuned Mass Dampers for Towers and Buildings

by Mal P. Sacks, Tacet Engineering Ltd, Toronto, Canada,
John C. Swallow, Tacet Engineering Ltd, Toronto, Canada,



Document Type: Proceeding Paper

Part of: Structural Engineering in Natural Hazards Mitigation

Abstract:

Tuned mass dampers (TMD's) are used to reduce the response of tall slender structures to resonant wind-induced oscillations. This paper reviews the authors' experience with the design and implementation of passive TMD's for a number of structures including: 1. The CN Tower in Toronto, Ontario: a free standing pre-stressed concrete communications tower. 2. Elevator towers in La Prade, Quebec: free standing steel lattice structures. The paper describes the evolution of pendulum-based TMD designs and the variations required to accommodate the different types of structures.

Subject Headings: Damping | Structural analysis | Building design | Wind loads | Wind forces | Wind engineering | Vibration | Canada | Ontario | Toronto | Quebec

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