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Dynamic behaviour of flat post-tensioned floor plates

Jetann, Charles A., Thambiratnam, David P., Kajewski, Stephen L., & Farr, Andrew (2006) Dynamic behaviour of flat post-tensioned floor plates. In Proceedings of the 13th International Conference of Sound and Vibration, Vienna University of Technology, Vienna, Austria, pp. 1-8.

Abstract

Vibration is a serviceability limit state for the design of suspended floor systems in buildings that is not well understood by many structural engineers. Dynamic behaviour is an important design consideration for slender, two-way floors, particularly for those of post-tensioned concrete construction. At present, there are no reliable design guidelines that deal with this problem. This paper describes a research program on the dynamic behaviour of posttensioned concrete floors that is presently underway at Queensland University of Technology in Brisbane, Australia. Results from this research will enable the development of much needed design guidance on the dynamic behaviour post-tensioned concrete floors in buildings. A full-scale, post-tensioned slab specimen has been constructed in the university’s structural laboratory. Purpose-designed support brackets have been fabricated which have enabled an investigation on the effects of various support conditions at the corners of the specimen. A series of static and dynamic tests are being performed in the laboratory to obtain basic material properties and behavior of the specimen. Data collected from these experiments will be used to tune finite element models for computational, parametric studies. Preliminary finite element analyses of both composite and homogeneous material cross-sections have been calibrated against results from initial laboratory experiments. Further field instrumentation and testing of floors in existing buildings will be conducted to validate computational studies. These computational studies will be expanded to generate predictive guidelines for the free vibration and response of two-way, post-tensioned concrete floors.

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ID Code: 4931
Item Type: Conference Paper
Additional Information: Author contact: c.jetann@qut.edu.au
Additional URLs:
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CIVIL ENGINEERING (090500) > Construction Engineering (090502)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Copyright Owner: Copyright 2006 (please consult author)
Deposited On: 29 Nov 2006
Last Modified: 04 Feb 2013 15:55

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