Effect of Ambient Temperature on Viscoelastically damped structure
Publication: Journal of Structural Engineering
Volume 118, Issue 7
Abstract
Seismic response characteristics of a 2/5‐scale steel frame structure with added viscoelastic dampers are studied experimentally. The major emphasis is placed on the ambient temperature effect. It is shown that, while seismic response characteristics of a structure can be significantly improved with added dampers, their degree of effectiveness depends on the surrounding temperature within which they operate. Results also show that, even at very high temperatures, the viscoelastically damped structure can still achieve a significant reduction of structural response as compared with when no dampers are added. Designing viscoelastic dampers by considering the ambient temperature is addressed. Empirical equations are established based on regression analysis using data obtained from component tests of the dampers. These equations can satisfactorily estimate the dynamic properties of dampers under various ambient temperatures, excitation frequencies, and deformations. Numerical simulations are carried out on equivalent structural damping and structural response under various ambient temperatures. It has been demonstrated that the dynamic behavior of structures with added viscoelastic dampers can be satisfactorily predicted by conventional analytical tools.
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 118 • Issue 7 • July 1992
Pages: 1955 - 1973
Copyright
Copyright © 1992 ASCE.
History
Published online: Jul 1, 1992
Published in print: Jul 1992
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