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Modelling of moment transmitting beam-to-column timber connections accounting for frictional transmission
https://orcid.org/0000-0003-2586-5695
https://orcid.org/0000-0003-4188-9726
https://orcid.org/0000-0001-8794-9961
https://orcid.org/0000-0002-1241-4927
Abstract The development of accurate structural modelling techniques is required to promote the use of timber as a renewable alternative to other structural materials. Due to their remarkable influence on the global behaviour of a timber structure, an accurate description of the performance of structural connections is needed. Particularly in the case of moment transmitting beam-to-column connections with dowel-type fasteners, such properties are difficult to obtain experimentally. This paper develops a finite element (FE) model that simulates the behaviour of these connections under quasi-static loading, with a focus on the estimation of rotational stiffness and load distribution among the dowels. The model is validated against short-term laboratory tests. Resulting friction between timber members due to the installation procedure must be considered, as it greatly influences the rotational response. Besides, non-linear behaviour of timber and a softened contact parameter have been implemented, and their influence on the FE model validation process is demonstrated.
Highlights New modelling strategy for moment transmitting connections. Rotational stiffness before timber failure is accurately predicted. Load distribution among dowels is analysed. Frictional behaviour must be taken into account for this type of connections. Non-elastic material response is necessary for correct a validation of the FE model.
Modelling of moment transmitting beam-to-column timber connections accounting for frictional transmission
https://orcid.org/0000-0003-2586-5695
https://orcid.org/0000-0003-4188-9726
https://orcid.org/0000-0001-8794-9961
https://orcid.org/0000-0002-1241-4927
Abstract The development of accurate structural modelling techniques is required to promote the use of timber as a renewable alternative to other structural materials. Due to their remarkable influence on the global behaviour of a timber structure, an accurate description of the performance of structural connections is needed. Particularly in the case of moment transmitting beam-to-column connections with dowel-type fasteners, such properties are difficult to obtain experimentally. This paper develops a finite element (FE) model that simulates the behaviour of these connections under quasi-static loading, with a focus on the estimation of rotational stiffness and load distribution among the dowels. The model is validated against short-term laboratory tests. Resulting friction between timber members due to the installation procedure must be considered, as it greatly influences the rotational response. Besides, non-linear behaviour of timber and a softened contact parameter have been implemented, and their influence on the FE model validation process is demonstrated.
Highlights New modelling strategy for moment transmitting connections. Rotational stiffness before timber failure is accurately predicted. Load distribution among dowels is analysed. Frictional behaviour must be taken into account for this type of connections. Non-elastic material response is necessary for correct a validation of the FE model.
Modelling of moment transmitting beam-to-column timber connections accounting for frictional transmission
https://orcid.org/0000-0003-2586-5695
https://orcid.org/0000-0003-4188-9726
https://orcid.org/0000-0001-8794-9961
https://orcid.org/0000-0002-1241-4927
Abstract The development of accurate structural modelling techniques is required to promote the use of timber as a renewable alternative to other structural materials. Due to their remarkable influence on the global behaviour of a timber structure, an accurate description of the performance of structural connections is needed. Particularly in the case of moment transmitting beam-to-column connections with dowel-type fasteners, such properties are difficult to obtain experimentally. This paper develops a finite element (FE) model that simulates the behaviour of these connections under quasi-static loading, with a focus on the estimation of rotational stiffness and load distribution among the dowels. The model is validated against short-term laboratory tests. Resulting friction between timber members due to the installation procedure must be considered, as it greatly influences the rotational response. Besides, non-linear behaviour of timber and a softened contact parameter have been implemented, and their influence on the FE model validation process is demonstrated.
Highlights New modelling strategy for moment transmitting connections. Rotational stiffness before timber failure is accurately predicted. Load distribution among dowels is analysed. Frictional behaviour must be taken into account for this type of connections. Non-elastic material response is necessary for correct a validation of the FE model.
Modelling of moment transmitting beam-to-column timber connections accounting for frictional transmission
Basterrechea-Arévalo, M. (author) / Cabrero, J.M. (author) / Iraola, B. (author) / Goñi, R. (author)
Engineering Structures ; 247
2021-08-31
Article (Journal)
Electronic Resource
English
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