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Steel and Composite Structures Volume 43, Number 3, May10 2022 (Special Issue) pages 403-417 DOI: https://doi.org/10.12989/scs.2022.43.3.403 |
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Vibration behaviour of cold-formed steel and particleboard composite flooring systems |
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Suleiman A. AL Hunaity, Harry Far and Ali Saleh
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| Abstract | ||
| Recently, there has been an increasing demand for buildings that allow rapid assembly of construction elements, have ample open space areas and are flexible in their final intended use. Accordingly, researchers have developed new competitive structures in terms of cost and efficiency, such as cold-formed steel and timber composite floors, to satisfy these requirements. Cold-formed steel and timber composite floors are light floors with relatively high stiffness, which allow for longer spans. As a result, they inherently have lower fundamental natural frequency and lower damping. Therefore, they are likely to undergo unwanted vibrations under the action of human activities such as walking. It is also quite expensive and complex to implement vibration control measures on problematic floors. In this study, a finite element model of a composite floor reported in the literature was developed and validated against four-point bending test results. The validated FE model was then utilised to examine the vibration behaviour of the investigated composite floor. Predictions obtained from the numerical model were compared against predictions from analytical formulas reported in the literature. Finally, the influence of various parameters on the vibration behaviour of the composite floor was studied and discussed. | ||
| Key Words | ||
| cold-formed steel; composite flooring systems; finite element method; floor vibrations; modal analysis; natural frequency | ||
| Address | ||
| Suleiman A. AL Hunaity, Harry Far and Ali Saleh: School of Civil and Environmental Engineering, Faculty of Engineering and Information Technology, University of Technology Sydney (UTS), Sydney, Australia | ||