Page 7 - InnoRenew CoE International Conference 2022
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In-situ measurements and FE numerical study of
InnoRenew CoE building’s dynamic performance
Igor Gavrić1,2*, Iztok Šušteršič1,2, Rok Prislan1,2
1 InnoRenew CoE, Livade 6a, 6310 Izola, Slovenia; e-mail: igor.gavric@innorenew.eu, iztok.sustersic@innorenew.eu, rok.prislan@innorenew.eu
2 University of Primorska, Faculty of Mathematics, Natural Sciences and Information Technologies, Glagoljaška 8, 6000 Koper, Slovenia
* Corresponding author
This study presents the results of ambient and vibration-based testing of a 4-storey InnoRenew CoE hybrid
timber structure within the Dynamic Response of Tall Timber Buildings under Service Load (DynaTTB) research
project (Abrahamsen et al., 2020). The main objective of the project is to identify experimentally a number of
full-scale tall timber buildings (existing or currently being built) and, based on these, develop representative finite
element (FE) models for predicting the vibration response of TTBs exposed to wind-induced dynamic loading.
The main outcomes of this project will be included in a Guideline for practicing engineers with recommendations
for the design of TTBs subjected to wind loads in the Serviceability Limit State (SLS).
In-situ measurements were performed at different construction stages. The first experimental data set refers to
ambient vibration measurements with two independent sets of measurement devices. The second experimental
data set was obtained by exciting the structure at different positions with APS 400 vibration exciter during
construction, and the third one after the building was finished. The experimental results were then compared
to FE models which represent the building’s dynamic response in terms of eigenfrequencies and mode shapes
and was further updated and validated. The effects of parameters such as connections’ stiffness, foundations,
mechanical properties of timber (elastic and shear modulus) and non-loadbearing structures such as screeds,
partition walls, and façade were analysed.
In this study we critically discuss the influence of aforementioned parameters on the building’s lateral stiffness,
compare the results with the FE model used for the structural design of this building, and provide insights that
are essential in determining the correct building stiffness for both seismic and wind design cases.
Keywords: cross-laminated timber (CLT), in-situ testing, dynamic response, finite element modelling
Acknowledgement: The authors gratefully acknowledge funding received from the ForestValue Research
Programme which is a transnational research, development and innovation programme jointly funded by
national funding organisations within the framework of the ERA-NET Cofund “ForestValue – Innovating Forest
based bioeconomy”. The results of the Slovenian part of the project were co-financed by Ministry of Education,
Science and Sport of the Republic of Slovenia. Authors also gratefully acknowledge receiving funding from
programme Horizon 2020 Framework Programme of the European Union; H2020 WIDESPREAD-2-Teaming:
(#739574) and the Republic of Slovenia.
REFERENCES
Abrahamsen, R., Bjertnaes, M A., Bouillot, J., Brank, B., Cabaton, L. et al., 2020. Dynamic Response of Tall
Timber Buildings Under Service Load: The DynaTTB Research Program. In: M. Papadrakakis, M. Fragiadakis, C.
Papadimitriou (ed.), EURODYN 2020, XI international conferece on structural dynamics: Proceedings, Volym II
(pp. 4900-4910). National Technical University of Athens.
17–18 NOVEMBER 2022 I IZOLA, SLOVENIA 7
InnoRenew CoE building’s dynamic performance
Igor Gavrić1,2*, Iztok Šušteršič1,2, Rok Prislan1,2
1 InnoRenew CoE, Livade 6a, 6310 Izola, Slovenia; e-mail: igor.gavric@innorenew.eu, iztok.sustersic@innorenew.eu, rok.prislan@innorenew.eu
2 University of Primorska, Faculty of Mathematics, Natural Sciences and Information Technologies, Glagoljaška 8, 6000 Koper, Slovenia
* Corresponding author
This study presents the results of ambient and vibration-based testing of a 4-storey InnoRenew CoE hybrid
timber structure within the Dynamic Response of Tall Timber Buildings under Service Load (DynaTTB) research
project (Abrahamsen et al., 2020). The main objective of the project is to identify experimentally a number of
full-scale tall timber buildings (existing or currently being built) and, based on these, develop representative finite
element (FE) models for predicting the vibration response of TTBs exposed to wind-induced dynamic loading.
The main outcomes of this project will be included in a Guideline for practicing engineers with recommendations
for the design of TTBs subjected to wind loads in the Serviceability Limit State (SLS).
In-situ measurements were performed at different construction stages. The first experimental data set refers to
ambient vibration measurements with two independent sets of measurement devices. The second experimental
data set was obtained by exciting the structure at different positions with APS 400 vibration exciter during
construction, and the third one after the building was finished. The experimental results were then compared
to FE models which represent the building’s dynamic response in terms of eigenfrequencies and mode shapes
and was further updated and validated. The effects of parameters such as connections’ stiffness, foundations,
mechanical properties of timber (elastic and shear modulus) and non-loadbearing structures such as screeds,
partition walls, and façade were analysed.
In this study we critically discuss the influence of aforementioned parameters on the building’s lateral stiffness,
compare the results with the FE model used for the structural design of this building, and provide insights that
are essential in determining the correct building stiffness for both seismic and wind design cases.
Keywords: cross-laminated timber (CLT), in-situ testing, dynamic response, finite element modelling
Acknowledgement: The authors gratefully acknowledge funding received from the ForestValue Research
Programme which is a transnational research, development and innovation programme jointly funded by
national funding organisations within the framework of the ERA-NET Cofund “ForestValue – Innovating Forest
based bioeconomy”. The results of the Slovenian part of the project were co-financed by Ministry of Education,
Science and Sport of the Republic of Slovenia. Authors also gratefully acknowledge receiving funding from
programme Horizon 2020 Framework Programme of the European Union; H2020 WIDESPREAD-2-Teaming:
(#739574) and the Republic of Slovenia.
REFERENCES
Abrahamsen, R., Bjertnaes, M A., Bouillot, J., Brank, B., Cabaton, L. et al., 2020. Dynamic Response of Tall
Timber Buildings Under Service Load: The DynaTTB Research Program. In: M. Papadrakakis, M. Fragiadakis, C.
Papadimitriou (ed.), EURODYN 2020, XI international conferece on structural dynamics: Proceedings, Volym II
(pp. 4900-4910). National Technical University of Athens.
17–18 NOVEMBER 2022 I IZOLA, SLOVENIA 7
