The damping analysis of experimental concrete beams under free-vibration

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Title The damping analysis of experimental concrete beams under free-vibration
Author Salzmann, Angela; Fragomeni, Salvatore; Loo, Yew-Chaye
Journal Name Advances in Structural Engineering - An International Journal
Editor JM Ko
Year Published 2003
Place of publication Essex, UK
Publisher Multi-Science Publishing Co. Ltd.
Abstract This paper presents an overview of the free-vibration damping analysis technique commonly employed by laboratories to determine the amount of material damping contained by a concrete specimen. From laboratory investigations the difficulties associated with a technique often employed for the extraction of damping from the free-vibration decay curve are identified. Extensive free-vibration tests undertaken on a wide variety of concrete beams indicate that for the traditional logdec technique, damping is to be extracted from the optimal peak ratio (An/A1) region of the free-vibration decay curve. An analysis of the effect of experimental test variables; hammer weight and hammer excitation position, on the calculation of damping is undertaken. The results show that neither test variable produces measurable impact on the calculation of damping.
Peer Reviewed Yes
Published Yes
Alternative URI http://dx.doi.org/10.1260/136943303321625739
Volume 6
Issue Number 1
Page from 53
Page to 64
ISSN 1369-4332
Date Accessioned 2004-02-02
Date Available 2015-01-18T22:00:30Z
Language en_US
Faculty Faculty of Engineering and Information Technology
Subject PRE2009-Structural Engineering
URI http://hdl.handle.net/10072/5950
Publication Type Journal Articles (Refereed Article)
Publication Type Code c1

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