Acceleration Response of Prestressed Cable RC Truss Floor System Subjected to Heel-Drop Loading
Publication: Journal of Performance of Constructed Facilities
Volume 30, Issue 5
Abstract
This paper describes and discusses the vibration serviceability of the innovative prestressed cable-reinforced concrete truss (i.e., prestressed cable RC truss, PCT for abbreviation) floor system subjected to heel-drop impact loading, based on the theoretical and experimental studies. In the theoretical analysis, the PCT floor system is idealized as an anisotropic rectangular plate with four built-in edges and the weighted residual method was used. A field test was carried out to investigate the dynamic characteristics of the PCT floor system and to validate and demonstrate the convergence of the theoretical solution. As a result, the experimental results agree well with the theoretical ones. The decrease of vibration is dramatic in the direction perpendicular to the PCT girder and is at a slower rate along the direction of the girder. The investigated PCT floor system has a low fundamental natural frequency () with low damping ratio (). According to one standard of vibration criteria, the innovative floor system exhibits satisfactory vibration perceptibility.
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Acknowledgments
The authors are grateful for the financial support provided by the National Natural Science Foundation of China (51378244, 51438001).
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Published In
Journal of Performance of Constructed Facilities
Volume 30 • Issue 5 • October 2016
Copyright
© 2016 American Society of Civil Engineers.
History
Received: Jul 1, 2015
Accepted: Nov 5, 2015
Published online: Jan 27, 2016
Discussion open until: Jun 27, 2016
Published in print: Oct 1, 2016
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