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Constrained Viscoelastic Layers for Passive Vibration Control of Structures

by George Tsiatas, Washington State Univ, Pullman, WA, USA,
Dario A. Gasparini, Washington State Univ, Pullman, WA, USA,



Document Type: Proceeding Paper

Part of: Dynamic Response of Structures

Abstract:

Infills with constrained viscoelastic layers for increasing the energy absorption capacity of structures are examined. The infills are expected to 'work' in the linear range of response by contributing the larger portion of the overall damping. To estimate the damping of the composite systems all materials are modeled as viscoelastic and steady state response to harmonic lateral excitation is computed. Effective damping is calculated from the amplification at resonance. The approach is demonstrated for a shear frame and a tube type building.

Subject Headings: Viscoelasticity | Damping | Vibration | Structural control | Steady states | Resonance | Excitation (physics)

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