Viscoelastic Dampers for Seismic Pounding Mitigation

by Kazuhiko Kasai, Lehigh Univ, Bethlehem, United States,
Javeed A. Munshi, Lehigh Univ, Bethlehem, United States,
Bruce F. Maison, Lehigh Univ, Bethlehem, United States,



Document Type: Proceeding Paper

Part of: Structural Engineering in Natural Hazards Mitigation

Abstract:

A hysteretic model for viscoelastic (VE) damper is explained. The model accurately accounts for the effects of excitation frequency as well as temperature of the damper. Benefit of using VE-dampers to mitigate seismic pounding damage of closely spaced buildings is demonstrated through dynamic nonlinear time history analyses. No-pounding responses of the buildings with and without the dampers are also explained.



Subject Headings: Model accuracy | Seismic loads | Damping | Stress strain relations | Stress analysis | Earthquake resistant structures | Viscoelasticity | Seismic tests

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