Title: Monitoring Damping in Pseudo-Dynamic Tests
Authors: MOLINA RUIZ Francisco JavierMAGONETTE GeorgesPEGON PierreZAPICO BLANCO Beatriz
Citation: JOURNAL OF EARTHQUAKE ENGINEERING vol. 15 no. 6 p. 877-900
Publisher: IMPERIAL COLLEGE PRESS
Publication Year: 2011
JRC N°: JRC55446
ISSN: 1363-2469
URI: http://www.tandfonline.com/loi/ueqe20
http://publications.jrc.ec.europa.eu/repository/handle/JRC55446
DOI: 10.1080/13632469.2010.544373
Type: Articles in Journals
Abstract: By comparison of dynamic and pseudo-dynamic tests, it is shown that conventional construction materials exhibit pure hysteretic damping and consequently, when quasistatic restoring forces are measured directly, the addition of viscous damping in the equation of motion must be avoided unless it is intended to reflect missing physical elements. Equally important in pseudo-dynamic testing is the fact that the apparent damping can be easily distorted by the inevitable control errors. The identification of a spatial model from the results of the tests allows obtaining a reliable estimation of the damping distortion for each vibration mode.
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