Vibration Serviceability of a Building Floor Structure. I: Dynamic Testing and Computer Modeling
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VIEW THE REPLYPublication: Journal of Performance of Constructed Facilities
Volume 24, Issue 6
Abstract
Buildings with large column-free floors or long-cantilevered structures can be susceptible to annoying vibrations due to everyday occupants’ activities such as walking. Computer modeling and analytical representation of building structural properties to predict the floor response subjected to excitations due to human activities are important issues that require further studies. Vibration testing and analysis of built structures can assist in more accurate estimation of structure dynamic properties. This paper presents the results of the modal testing conducted on an office building floor and analysis of the collected vibration measurements. It compares these results with the structural response using computer analyses. It also presents a sensitivity study to assess the importance of various structural parameters on the floor dynamic response. From the results presented, it is concluded that for the structure used in this study the raised flooring and nonstructural elements acted mainly as added mass and did not contribute to the floor damping. Conclusions are also made on the importance of various structural parameters on floor response and the analysis of the modal test results.
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Acknowledgments
This study was supported by the National Science Foundation under Grant No. NSFCMMI-0324471. This support is gratefully acknowledged. Any opinions, findings, and conclusions expressed in this paper are those of the writer and do not necessarily reflect the views of the National Science Foundation. Cooperation of Structural Design, Inc. and in particular Mr. Paul Dannels is greatly appreciated.
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Information & Authors
Information
Published In
Journal of Performance of Constructed Facilities
Volume 24 • Issue 6 • December 2010
Pages: 497 - 507
Copyright
© 2010 ASCE.
History
Received: Aug 19, 2009
Accepted: Mar 5, 2010
Published online: Nov 15, 2010
Published in print: Dec 2010
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