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DynaTTB Dynamic Response of Tall Timber Buildings under Service Load

Project title: DynaTTB Dynamic Response of Tall Timber Buildings under Service Load
Project team UL:: Prof. Boštjan Brank, Blaž Kurent (PhD student)

36 months

From 1 March 2019 to 28 February 2022

Project code: Forest Value Call 2017


Lead partner RISE Research Institute of Sweden
Project leader at UL: Prof. Marie Johansson (Prof. Boštjan Brank for UL partner)
Partners: Norwegian University of Science and Technology (N), University of Exeter (UK), University of Ljubljana (SI), InnoRenew CoE (SI), Centre Scientifique et Technique du Bâtiment (F), Linnaeus University (S), Moelven Töreboda AB (S), Moelven Limtre AS (N), SWECO Norge AS avd Lillehammer (N), Smith and Wallwork Engineers Ltd (UK), GALEO (F), EIFFAGE IMMOBILIER SUD OUEST (F), ARBONIS (F)
Source of finance: Ministry of Education, Science and Sport
Key words: tall timber buildings, structural dynamics, experimental modal analysis, model identification, finite element model updating, design recommendations


The lack of data, design methodology, computation modelling techniques and even basic knowledge are creating design uncertainties, being key obstacles for increasing the use of Tall Timber Buildings (TTB). This, in turn, severely limits the opportunity for timber to be used more widely in construction, despite its status as an environmentally friendly material. The research hypothesis is that it is possible to create computational models for TTBs, based on system identification and calibration of advanced Finite Element models. This will be underpinned by data from full-scale tests of a number of representative mid-to-high rise timber buildings in Norway, Sweden, France, Slovenia and UK.

Main goals

Aim of Dyna-TTB project is to quantify the structural damping in as-built Tall Timber Buildings (TTB), identify and quantify the effects of connections and non-structural elements on the stiffness, damping and wind-induced dynamic response of TTBs, develop a bottom-up Finite Element model for estimating the dynamic response of multi-storey timber buildings, validate the predicted response with in-situ measurements on TTBs and disseminate findings via a TTB Design Guideline for design practitioners.

Project work packages:

  • (1) Coordination,
  • (2) Laboratory-based experimental determination of dynamic response of components, connections and sub-assemblies,
  • (3) In-situ measurements,
  • (4) Numerical modelling of dynamic response,
  • (5) Dissemination and exploitation.