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

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 stu...

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Main Authors: Blaž Kurent, Noemi Friedman, Boštjan Brank
Format: Article
Language:English
Published: MDPI AG 2024-03-01
Series:Buildings
Subjects:
Online Access:https://www.mdpi.com/2075-5309/14/3/689
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author Blaž Kurent
Noemi Friedman
Boštjan Brank
author_facet Blaž Kurent
Noemi Friedman
Boštjan Brank
author_sort Blaž Kurent
collection DOAJ
description 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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spelling doaj.art-2bce13015207437b99483c6ed3ac7a432024-03-27T13:29:15ZengMDPI AGBuildings2075-53092024-03-0114368910.3390/buildings14030689Modelling of Multi-Storey Cross-Laminated Timber Buildings for Vibration ServiceabilityBlaž Kurent0Noemi Friedman1Boštjan Brank2Faculty of Civil and Geodetic Engineering, University of Ljubljana, 1000 Ljubljana, SloveniaAI Laboratory, HUN-REN Institute for Computer Science and Control (SZTAKI), H-1111 Budapest, HungaryFaculty of Civil and Geodetic Engineering, University of Ljubljana, 1000 Ljubljana, SloveniaIn 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%).https://www.mdpi.com/2075-5309/14/3/689timber buildingcross-laminated timbermodal testingmodal propertiesfinite element modellingmodel updating
spellingShingle Blaž Kurent
Noemi Friedman
Boštjan Brank
Modelling of Multi-Storey Cross-Laminated Timber Buildings for Vibration Serviceability
Buildings
timber building
cross-laminated timber
modal testing
modal properties
finite element modelling
model updating
title Modelling of Multi-Storey Cross-Laminated Timber Buildings for Vibration Serviceability
title_full Modelling of Multi-Storey Cross-Laminated Timber Buildings for Vibration Serviceability
title_fullStr Modelling of Multi-Storey Cross-Laminated Timber Buildings for Vibration Serviceability
title_full_unstemmed Modelling of Multi-Storey Cross-Laminated Timber Buildings for Vibration Serviceability
title_short Modelling of Multi-Storey Cross-Laminated Timber Buildings for Vibration Serviceability
title_sort modelling of multi storey cross laminated timber buildings for vibration serviceability
topic timber building
cross-laminated timber
modal testing
modal properties
finite element modelling
model updating
url https://www.mdpi.com/2075-5309/14/3/689
work_keys_str_mv AT blazkurent modellingofmultistoreycrosslaminatedtimberbuildingsforvibrationserviceability
AT noemifriedman modellingofmultistoreycrosslaminatedtimberbuildingsforvibrationserviceability
AT bostjanbrank modellingofmultistoreycrosslaminatedtimberbuildingsforvibrationserviceability