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Parametric Study of Structures with Added Viscoelastic Dampers

by K. C. Chang, Natl Taiwan Univ, Taipei, Taiwan,
H. A. El-natur, Natl Taiwan Univ, Taipei, Taiwan,



Document Type: Proceeding Paper

Part of: Structural Engineering in Natural Hazards Mitigation

Abstract:

This paper presents the result of a parametric study on the seismic behavior of minimum weight-designed structures with and without added viscoelastic dampers. The structures are first designed using the UBC's equivalent lateral force procedure with and without considering the drift constraints. An optimality criteria method is used in the design process. Generated earthquake ground motions equivalent to UBC-88's elastic design spectrum are used to access the structure's ductility demands. VE dampers are sequentially added to the structural locations corresponding to maximum story drifts. It is shown that safe and economic designs of structures may be achieved by combining minimum weight design methods and viscoelastic dampers.

Subject Headings: Damping | Viscoelasticity | Structural behavior | Minimum weight design | Structural design | Seismic design | Load and resistance factor design

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