This state-of-the-art report has been prepared within COST Action FP1402 Basis of structural timber design from research to standards, Working Group 3 Connections. The Action was established to create an expert network that is able to develop and establish the specific information needed for standardization committee decisions. Its main objective is to overcome the gap between broadly available scientific results and the specific information needed by standardization committees. This necessitates an expert network that links practice with research, i.e. technological developments with scientific background. COST presents the ideal basis to foster this type of joint effort. Chapter 8 Connections presents an integral part of Eurocode 5 and is in need of revision. This state-of-the-art report shall provide code writers with background information necessary for the development of the so-called Second Generation of the Eurocodes, now aimed to be produced in 2022.
This paper illustrates arrangements of self-tapping screws to reinforce the mechanical behaviour of transverse compression. Several experimental approaches are studied such as the reinforcement below the support, beside the support or the combination of these two reinforcements. The last experimental approach is explored to solicit the shear over the entire height of the screw. These different approaches of reinforcement allow seeing a panel of constructive solutions to transverse compression reinforcement by screws. This panel allows adapting the type of reinforcement with the studied building.