Reduced and test-data correlated FE-models of a large timber truss with dowel-type connections aimed for dynamic analyses at serviceability level
2022 (English)In: Engineering structures, ISSN 0141-0296, E-ISSN 1873-7323, Vol. 260, article id 114208Article in journal (Refereed) Published
Abstract [en]
The rise of wood buildings in the skylines of cities forces structural dynamic and timber experts to team up to solve one of the new civil-engineering challenges, namely comfort at the higher levels, in light weight buildings, with respect to wind-induced vibrations. Large laminated timber structures with mechanical joints are exposed to turbulent horizontal excitation with most of the wind energy blowing around the lowest resonance frequencies of 50 to 150 m tall buildings. Good knowledge of the spatial distribution of mass, stiffness and damping is needed to predict and mitigate the sway in lighter, flexible buildings. This paper presents vibration tests and reductions of a detailed FE-model of a truss with dowel-type connections leading to models that will be useful for structural engineers. The models also enable further investigations about the parameters of the slotted-in steel plates and dowels connections governing the dynamical response of timber trusses. © 2022 The Author(s)
Place, publisher, year, edition, pages
Elsevier Ltd , 2022. Vol. 260, article id 114208
Keywords [en]
Connection stiffness, Dowel-type fastener, Dynamic properties, FE-model reduction, Glulam truss, Mechanical connection, Modal testing, Serviceability, Tall timber structure, Wind-induced vibration, Finite element method, Stiffness, Structural dynamics, Tall buildings, Timber, Trusses, Vibration analysis, Wind power, Dynamics properties, FE model, Mechanical connections, Modal testings, Model reduction, Timber structures, Wind induced vibrations, Modal analysis
National Category
Building Technologies
Identifiers
URN: urn:nbn:se:ri:diva-59220DOI: 10.1016/j.engstruct.2022.114208Scopus ID: 2-s2.0-85128704705OAI: oai:DiVA.org:ri-59220DiVA, id: diva2:1667349
Note
Funding details: VINNOVA; Funding details: Svenska Forskningsrådet Formas; Funding details: Energimyndigheten; Funding text 1: This research received funding from the ForestValue Research Program, which is a transnational research, development and innovation program jointly funded by national funding organizations within the framework of the ERA-NET Cofund ‘ForestValue – Innovating forest-based bioeconomy. The Swedish part of the Project Dyna-TTB is supported under grant No 2018-04976 by Swedish Governmental Agency for Innovation Systems (Vinnova), The Swedish Research Council for Environment, Agricultural Sciences and Spatial Planning (FORMAS) and Swedish Energy Agency (SWEA). Moelven Töreboda AB is deeply thanked for the opportunity to do this research at their factory and for their kind assistance in handling the glulam truss.
2022-06-102022-06-102023-06-07Bibliographically approved