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Wind-Induced Vibrations in Timber Buildings-Parameter Study of Cross-Laminated Timber Residential Structures
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Industrilized and sustainable construction.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Industrilized and sustainable construction.
2017 (English)In: Structural Engineering International, ISSN 1016-8664, E-ISSN 1683-0350, Vol. 27, no 2, 205-216 p.Article in journal (Refereed) Published
Abstract [en]

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.

Place, publisher, year, edition, pages
International Association for Bridge and Structural Engineering, 2017. Vol. 27, no 2, 205-216 p.
National Category
Building Technologies
Research subject
Timber Structures
Identifiers
URN: urn:nbn:se:ltu:diva-63686DOI: 10.2749/101686617X14881932435619ISI: 000400418500008Scopus ID: 2-s2.0-85021183724OAI: oai:DiVA.org:ltu-63686DiVA: diva2:1105073
Note

Validerad;2017;Nivå 2;2017-06-02 (andbra)

Available from: 2017-06-02 Created: 2017-06-02 Last updated: 2017-11-24Bibliographically approved

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Edskär, IdaLidelöw, Helena

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