Dynamic identification and model calibration of connection stiffness in multi-storey cross-laminated timber buildings

Tulebekova, Saule; Malo, Kjell Arne; Rönnquist, Anders

doi:10.1016/j.jobe.2023.106607

Cited by 4 publications

(3 citation statements)

References 25 publications

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“…With only three case studies, this conclusion should not be generalized. A different conclusion about the stiffness of wall-floor connections was, for example, reached by Tulebekova et al [59]. In the model updating of two CLT buildings, they found that the shear stiffness of the connections should be modelled.…”

Section: Connectionsmentioning

confidence: 96%

“…A set of seven CLT buildings ranging from 9 to 13 storeys were tested with AVT by Tulebekova et al [59]. The buildings were modelled with full-scale FE models, exhibiting natural frequencies that are 10% to 20% lower than what was measured.…”

Section: Modal Testing and Model Updatingmentioning

confidence: 99%

“…The value for damping was assumed based on the reports in the literature. For example, damping ratios in some of the observed timber buildings [59,68,69,80], were identified to be between 1.2% and 2.3%, and, most commonly, between 1.5% and 2.0%. For hybrid timber buildings, damping ratios were identified to be higher-between 1.5% and 3.0% [64], or even as high as 4.0% [84].…”

Section: Serviceability Checkmentioning

confidence: 99%

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Modelling of Multi-Storey Cross-Laminated Timber Buildings for Vibration Serviceability

Kurent,

Friedman,

Brank

2024

Buildings

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In this study, the vibration serviceability of multi-storey timber buildings is addressed. The core of this study pertains to the preparation of a comprehensive finite element model to predict modal properties for an accurate vibration serviceability checking. To that end, findings obtained from studying three multi-storey timber buildings are summarized and discussed. Two of the buildings (of seven and eight storeys) consist entirely of cross-laminated timber (CLT), while the third is a five-storey hybrid CLT-concrete building. Thanks to the detailed finite element models and modal testing results, one has the capability to conduct sensitivity analyses, classical and Bayesian model updating, and uncertainty quantifications. With these methodologies, influential modelling parameters as well as the sources of modelling error were identified. This allowed for conclusions to be drawn about the in-plane shear stiffness of the constructed walls (whose higher value causes the natural frequencies to increase by up to 25%), the soil deformability (which may cause the natural frequencies to drop by up to 20%), and the perpendicular-to-the-grain deformation of floor slabs (which may lead to an overestimation of a fundamental frequency by up to 8%).

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Section: Connectionsmentioning

confidence: 96%

Section: Modal Testing and Model Updatingmentioning

confidence: 99%