Dynamic Response of Tall Timber Buildings Under Service Load – The Dynattb Research Program

Abrahamsen, R. B.; Bjertnæs, Magne A.; Bouillot, J.; Brank, Boštjan; Cabaton, Lionel; Crocetti, Roberto; Flamand, Olivier; Garains, Fabien; Gavrić, Igor; Germain, Olivier; Hahusseau, Ludwig; Hameury, Stéphane; Johansson, Marie; Johansson, Thomas B.; Ao, Wai Kei; Kurent, Blaž; Landel, Pierre; Linderholt, Andreas; Malo, Kjell Arne; Manthey, Manuel; Nåvik, Petter; Pavic, Alex; Perez, Fernando; Rönnquist, Anders; Stamatopoulos, Haris; Šušteršič, Iztok; Tulebekova, Salue

doi:10.47964/1120.9397.18405

Cited by 21 publications

(15 citation statements)

References 6 publications

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“…Currently, the knowledge on the stiffness and the key dynamic properties (natural frequencies, mode shapes and damping) of TTBs is limited, particularly with respect to connections used (e.g. Abrahamsen et al, 2020), which is one of the main barriers for further TTBs developments. Underestimation of the fundamental natural frequency of up to 50% by a TTB structural model, relative to its experimental counterpart, is common (e.g.…”

Section: Introductionmentioning

confidence: 99%

Model updating of seven-storey cross-laminated timber building designed on frequency-response-functions-based modal testing

Kurent

Brank

2021

Structure and Infrastructure Engineering

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Section: Introductionmentioning

confidence: 99%

Model updating of seven-storey cross-laminated timber building designed on frequency-response-functions-based modal testing

Kurent

Brank

2021

Structure and Infrastructure Engineering

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“…The mass m at the head of the panel is assumed equal to 8 KN, ie a fraction of the vertical load applied in quasistatic tests. The viscosity coefficient of timber structures is approximately 2%, as found by [1,46]. However, identifying the viscosity coefficient in operational conditions generally underestimates the actual viscosity coefficient at more significant displacements.…”

Section: Resultsmentioning

confidence: 81%

Assessment of the Seismic Response of CLT Shear Walls Using the EEGBW, a Bouc–Wen Class Predictive Model

Aloisio

Fragiacomo

2021

Infrastructures

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The paper presents an application of the Extended Energy-dependent Generalized Bouc–Wen model (EEGBW) to simulate the experimental cyclic response of Cross-Laminated Timber (CLT) panels. The main objectives of the paper are assessing the sensitivity of the quadratic error between experimental and numerical data to the EEGBW parameters, showing the fitting performance of the EEGBW model in matching the experimental cyclic response of CLT panels, highlighting the stability of the model in nonlinear dynamic analysis with seismic excitation. The research proves that the considered Bouc–Wen class hysteresis model can reproduce the hysteretic response of structural arrangements characterized by pinching and degradation phenomena. The model exhibits significant stability in nonlinear dynamic analysis with seismic excitation. The model’s stability and versatility endorse its application to simulate structural systems’ dynamic response when Finite Element modelling might be an impractical choice.

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“…For tall timber buildings, the design base shear forces due to wind loading are normally larger than those due to earthquake loading because of their high flexibility [7]. Abrahamsen et al have experimentally explored the vibration behaviours of some real tall timber buildings in Europe and tried to predict the vibration responses of the tall timber buildings under wind loading through finite element modelling [8]. Aloisio et al studied an eight-storey CLT building using a simplified analytical model and calibrated the experimental modal parameters using a proper objective function based on the storey masses of the building.…”

Section: Introductionmentioning

confidence: 99%

Numerical Analysis on Global Serviceability Behaviours of Tall Glulam Frame Buildings to the Eurocodes and UK National Annexes

Zhao¹,

Zhang²,

Kilpatrick³

et al. 2021

J. Civ. Eng. Constr.

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Glued-laminated timber (Glulam) is an innovative engineered timber product and has been widely used for constructing spatial grand timber structures and tall timber buildings due to its exceptional natural attraction, easy processing, decent fire resistance and outstanding structural performance. However, global serviceability performances of tall timber buildings constructed from Glulam products for beams, columns and bracings and CLT products for lift core and floors under wind load are not well known yet though they are crucial in structural design and global analysis. In this study, finite element software SAP2000 is used to numerically simulate the global static and dynamic serviceability behaviours of a 105 m high 30-storey tall Glulam building with CLT lift core and floors assumed in Glasgow, Scotland, UK. The maximum horizontal storey displacement due to wind is 58.5% of the design limit and the maximum global horizontal displacement is 49.7% of the limit set to the Eurocodes. The first three lowest vibrational frequencies, modes and shapes of the building are obtained, with the fundamental frequency being 33.3% smaller than the code recommended value due to its low mass and stiffness. The peak acceleration of the building due to wind is determined to the Eurocodes and ISO 10137. The results show that the global serviceability behaviours of the building satisfy the requirements of the Eurocodes and other design standards. Parametric studies on the peak accelerations of the tall Glulam building are also conducted by varying timber material properties and building masses. Increasing the timber grade for CLT members, the generalised building mass and the generalised building stiffness can all be adopted to lower the peak accelerations at the top level of the building so as to reduce the human perceptions to the wind induced vibrations with respect to the peak acceleration.

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Dynamic Response of Tall Timber Buildings Under Service Load – The Dynattb Research Program

Cited by 21 publications

References 6 publications

Model updating of seven-storey cross-laminated timber building designed on frequency-response-functions-based modal testing

Model updating of seven-storey cross-laminated timber building designed on frequency-response-functions-based modal testing

Assessment of the Seismic Response of CLT Shear Walls Using the EEGBW, a Bouc–Wen Class Predictive Model

Numerical Analysis on Global Serviceability Behaviours of Tall Glulam Frame Buildings to the Eurocodes and UK National Annexes

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