Amplification System for Supplemental Damping Devices in Seismic Applications
Publication: Journal of Structural Engineering
Volume 131, Issue 6
Abstract
Seismic protection systems include the use of special passive devices to introduce supplemental damping into the structure. In building applications, passive devices are normally used in brace configurations and activated by a component of the structural drift. However, in applications where small elastic interstory displacements are expected, the conventional usage of such devices may not be suitable. Lever mechanisms, which amplify the displacements and velocities affecting the damping device, can be employed to overcome this deficiency. This work describes a displacement amplification device (DAD) based on a gear-type mechanism and connected in series with a fluid viscous damper (FVD). Laboratory test results are given here for a small-scale version of the DAD-FVD system. Potential implementations of this amplification system in civil structures are briefly described.
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References
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 131 • Issue 6 • June 2005
Pages: 979 - 983
Copyright
© 2005 ASCE.
History
Received: Sep 19, 2002
Accepted: Nov 12, 2004
Published online: Jun 1, 2005
Published in print: Jun 2005
Notes
Note. Associate Editor: Andrei M. Reinhorn
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