Dynamic performance of timber-concrete composite flooring systems

Publisher:
CRC Press/Balkema
Publication Type:
Conference Proceeding
Citation:
Incorporating Sustainable Practice in Mechanics of Structures and Materials - Proceedings of the 21st Australasian Conference on the Mechanics of Structures and Materials (ACMSM21), 2011, pp. 315 - 319
Issue Date:
2011-01
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Long span and light weight floor construction in recent times has led to increased concerns on the dynamic issues with the flooring systems. Therefore, there is a growing need for measurement of dynamic characteristics such as fundamental natural frequency, damping ratio, and mode shapes of floor systems to investigate their behaviour. A combination of timber and concrete has been extensively used to construct floors over the past three decades to resolve most of the issues such as vibration and acoustic encountered in full timber flooring systems. his paper presents the results such as fundamental natural frequency, damping ratio and composite action index from dynamic investigation on four TCC beams with identical geometry but with different connection systems. Initially all the beams were excited by instrumented hammer and free vibration responses were recorded. The connection systems tested included bird-mouth notch with coach screw, nonnal and SFS screws without any notches.
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