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Dynamic Response of Tall Timber Buildings Under Service Load: The DynaTTB Research Program
Moelven Limtre, Norway.
Sweco, Norway.
Eiffage, France.
University of Ljubljana, Slovenia.
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2020 (English)Conference paper, Published paper (Refereed)
Abstract [en]

Wind-induced dynamic excitation is becoming a governing design action determin-ing size and shape of modern Tall Timber Buildings (TTBs). The wind actions generate dynamic loading, causing discomfort or annoyance for occupants due to the perceived horizontal sway – i.e. vibration serviceability failure. Although some TTBs have been instrumented and meas-ured to estimate their key dynamic properties (natural frequencies and damping), no systematic evaluation of dynamic performance pertinent to wind loading has been performed for the new and evolving construction technology used in TTBs. The DynaTTB project, funded by the Forest Value research program, mixes on site measurements on existing buildings excited by heavy shakers, for identification of the structural system, with laboratory identification of building elements mechanical features coupled with numerical modelling of timber structures. The goal is to identify and quantify the causes of vibration energy dissipation in modern TTBs and pro-vide key elements to FE modelers.

The first building, from a list of 8, was modelled and tested at full scale in December 2019. Some results are presented in this paper. Four other buildings will be modelled and tested in spring 2020.

Place, publisher, year, edition, pages
2020.
Keywords [en]
timber building, wind load, discomfort, modelling, damping, full scale
National Category
Civil Engineering
Identifiers
URN: urn:nbn:se:ri:diva-50886OAI: oai:DiVA.org:ri-50886DiVA, id: diva2:1504645
Conference
EURODYN 2020, XI International Conference on Structural Dynamics, Athens, Greece, 22–24 June 2020
Available from: 2020-11-30 Created: 2020-11-30 Last updated: 2023-06-07Bibliographically approved

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Landel, Pierre

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