Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Experimental, analytical and numerical vibration analysis of long-span timber-timber composite floors in self-tensioning and non-tensioning configurations
Highlights A test campaign was developed determing dynamic properties of timber pieces. The study covers non-tensioning and self tensioning timber-timber configurations. The study covers highly slender long span pieces under different loading conditions. A minimum difference between non-tensioning and self-tensioning was detected. A simple and precise analytical method to predict eigenfrequency is presented. A FEM numerical analysis was developed, with a very accurate fit with test results.
Abstract An experimental campaign was carried out on the dynamic behaviour of timber-timber composite pieces under different loading conditions. This study compares the behaviour of non-tensioning and self-tensioning configurations under different stages of loading. The results show that the presence of an un-bonded prestressed bar hardly alters the eigenfrequency value in comparison with non-tensioned solutions, although it significantly reduces the damping ratio. An analytical methodology is presented that makes it possible to predict dynamic behaviour in terms of eigenfrequency with great exactitude. The simplicity of factors required by the analytical technique means that this method can be used as a design tool. FEM models were developed for each test configuration, and the different load states were analysed. The results show an extremely precise match with those obtained in the test campaign, indicating that this numerical methodology is suitable for the dynamic analysis of these structural elements.
Experimental, analytical and numerical vibration analysis of long-span timber-timber composite floors in self-tensioning and non-tensioning configurations
Highlights A test campaign was developed determing dynamic properties of timber pieces. The study covers non-tensioning and self tensioning timber-timber configurations. The study covers highly slender long span pieces under different loading conditions. A minimum difference between non-tensioning and self-tensioning was detected. A simple and precise analytical method to predict eigenfrequency is presented. A FEM numerical analysis was developed, with a very accurate fit with test results.
Abstract An experimental campaign was carried out on the dynamic behaviour of timber-timber composite pieces under different loading conditions. This study compares the behaviour of non-tensioning and self-tensioning configurations under different stages of loading. The results show that the presence of an un-bonded prestressed bar hardly alters the eigenfrequency value in comparison with non-tensioned solutions, although it significantly reduces the damping ratio. An analytical methodology is presented that makes it possible to predict dynamic behaviour in terms of eigenfrequency with great exactitude. The simplicity of factors required by the analytical technique means that this method can be used as a design tool. FEM models were developed for each test configuration, and the different load states were analysed. The results show an extremely precise match with those obtained in the test campaign, indicating that this numerical methodology is suitable for the dynamic analysis of these structural elements.
Experimental, analytical and numerical vibration analysis of long-span timber-timber composite floors in self-tensioning and non-tensioning configurations
Suárez-Riestra, F. (Autor:in) / Estévez-Cimadevila, J. (Autor:in) / Martín-Gutiérrez, E. (Autor:in) / Otero-Chans, D. (Autor:in)
Construction and Building Materials ; 218 ; 341-350
11.05.2019
10 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Dynamic , Tensioning , Long-span , Experimental , Analytical , Numerical
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