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Performance of dowel-type fasteners and notches for hybrid timber structures
Ist Teil von
Engineering structures, 2018-09, Vol.171, p.40-46
Ort / Verlag
Kidlington: Elsevier Ltd
Erscheinungsjahr
2018
Link zum Volltext
Quelle
Alma/SFX Local Collection
Beschreibungen/Notizen
•Mechanical performance of timber-concrete composite connections made with dowel type fasteners.•Mechanical performance of timber-concrete composite connections made with notches.•Design models for timber-concrete composite connections made with dowel type fasteners.•Design models for timber-concrete composite connections made with notches.
One of the most popular Timber-Concrete connection types is the dowel type fastener, due to many factors, such as for example, simplicity, low cost and adequate performance in most conditions. This connection type was traditionally used in timber structures and was adopted for composite structures from the early ages. The basic phenomena governing the mechanical behavior of timber-timber and timber-concrete connections with dowel type fasteners are similar, however, the last show some relevant specificities due largely to the presence of concrete. Such specificities have a non-negligible influence in the performance and consequently in modelling and design. In this paper such specificities are discussed, as well as, their consequences in the modelling. Based on this analysis proposals are made for models to estimate the connections’ load carrying capacity and slip modulus. Additional the existing knowledge about the performance of notched connections is summarized. Therefore, also values for important design parameters such as minimum values for the geometry, values for the slip modulus and possible failure modes of a notched connection are given.