Damping in high strength concrete beams - prediction and comparison

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Title Damping in high strength concrete beams - prediction and comparison
Author Chowdhury, Sanaul Huq; Loo, Yew-Chaye
Publication Title Progress in Mechanics of Structures and Materials
Editor Peter J. Moss and Rajesh P. Dhakal
Year Published 2006
Place of publication Leiden, The Netherlands
Publisher Taylor & Francis/Balkema
Abstract The response of a structure to a dynamic load is many times greater than its response to the same load applied statically. The relation between a structure's static and dynamic responses depends primarily on its damping characteristics. Cracking also significantly affects the damping in reinforced concrete structures. The authors developed a formula for predicting logarithmic decrements of damping in reinforced concrete beams using the residual crack width and the span length. But all the beams used in this formulation were of normal strength concrete (NSC). Presented herein are the test results of 15 reinforced high strength concrete (HSC) beams. Residual crack widths and logarithmic decrements of damping at each load level for each beam had been recorded. The measured damping values are compared with the values predicted using authors' NSC beam formula. The comparison shows a reasonable correlation confirming the applicability of the NSC beam damping formula to HSC beams.
Peer Reviewed Yes
Published Yes
ISBN 0-415-42692-3
Conference name The 19th Australasian Conference on the Mechanics of Structures and Materials (ACMSM19)
Location Christchurch, New Zealand
Date From 2006-11-29
Date To 2006-12-01
URI http://hdl.handle.net/10072/13402
Date Accessioned 2007-01-03
Date Available 2007-08-07T03:52:07Z
Language en_AU
Faculty Faculty of Science, Environment, Engineering and Technology
Subject Structural Engineering
Publication Type Conference Publications (Full Written Paper - Refereed)
Publication Type Code e1

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