Wind-Induced Vibrations in Timber Buildings—Parameter Study of Cross-Laminated Timber Residential Structures
| Auteur(s): |
Ida Edskär
Helena Lidelöw |
|---|---|
| Médium: | article de revue |
| Langue(s): | anglais |
| Publié dans: | Structural Engineering International, mai 2017, n. 2, v. 27 |
| Page(s): | 205-216 |
| DOI: | 10.2749/101686617x14881932435619 |
| Abstrait: | A current trend (2016) to construct high-rise timber buildings is seen. In order to understand the limitations posed by the timber material, wind-induced dynamic behaviour causing vibrations in the serviceability limit state has to be studied. The aim of this research is to calculate the natural frequency and acceleration levels of timber buildings having a cross-laminated timber structure to further the understanding of its behaviour and how a change in parameters affects building performance as reflected against comfort criteria. The results were calculated through finite element modelling using commercial software and by performing a modal analysis. The parameters under scrutiny were material stiffness, wall density, damping ratio, building height, and building footprint. The results show that even at moderate building heights (12–14 storeys), the comfort criteria are not fulfilled. Furthermore, the interaction between stiffness and mass for timber buildings needs to be explored further. And since the change of building footprint has a strong influence on the dynamic behaviour, the interplay between architectural and structural design becomes more important. Finally, more data on measurements of damping in timber buildings need to be collected to further validate simulation models. |
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10078668 - Publié(e) le:
06.10.2018 - Modifié(e) le:
18.10.2018
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