Abstract
The new revision of the EN 12354-1 standard provides prediction formulas for estimating the vibration reduction index (Kij) of heavy weight junctions, based on laboratory and in situ measurements. At the same time, new Kij prediction formulas for CLT junctions have been added to this revised standard. The goal of this research is to study if the same approach based on numerical models used for heavyweight junctions can be extended to CLT elements junctions. This step is not straightforward because the modelling of CLT structures implies a list of non-trivial aspects to take into account: 1) the details of the junction construction, i.e. direction and type of screws, presence of angle brackets and plates; 2) the orthotropy of CLT panels in terms of mechanical properties and 3) how damping must be considered in the numerical model. The contribution presents the advances made in this direction discussing a comparison among available experimental data, the analysis of specific features of CLT junctions, the comparison with the standard formulation and the extension to different types of junction. © WCTE 2018 Committee.