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Development of the response coefficient-root function method for the transient vibration serviceability design of flat concrete floors

Jetann, Charles Anthony (2010) Development of the response coefficient-root function method for the transient vibration serviceability design of flat concrete floors. PhD thesis, Queensland University of Technology.

Abstract

The vibration serviceability limit state is an important design consideration for two-way, suspended concrete floors that is not always well understood by many practicing structural engineers. Although the field of floor vibration has been extensively developed, at present there are no convenient design tools that deal with this problem. Results from this research have enabled the development of a much-needed, new method for assessing the vibration serviceability of flat, suspended concrete floors in buildings. This new method has been named, the Response Coefficient-Root Function (RCRF) method.
Full-scale, laboratory tests have been conducted on a post-tensioned floor specimen at Queensland University of Technology’s structural laboratory. Special support brackets were fabricated to perform as frictionless, pinned connections at the corners of the specimen. A series of static and dynamic tests were performed in the laboratory to obtain basic material and dynamic properties of the specimen. Finite-element-models have been calibrated against data collected from laboratory experiments. Computational finite-element-analysis has been extended to investigate a variety of floor configurations. Field measurements of floors in existing buildings are in good agreement with computational studies. Results from this parametric investigation have led to the development of new approach for predicting the design frequencies and accelerations of flat, concrete floor structures. The RCRF method is convenient tool to assist structural engineers in the design for the vibration serviceability limit-state of in-situ concrete floor systems.

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ID Code: 41565
Item Type: QUT Thesis (PhD)
Supervisor: Thambiratnam, David
Keywords: suspended concrete floors, floor vibration, vibration serviceability
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Past > Schools > School of Urban Development
Institution: Queensland University of Technology
Deposited On: 04 May 2011 15:06
Last Modified: 30 Sep 2011 11:27

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