Theoretical and experimental analysis of timber-to-timber joints connected with inclined screws

✍ Scribed by Roberto Tomasi; Alessandro Crosatti; Maurizio Piazza

• Publisher: Elsevier Science
• Year: 2010
• Tongue: English
• Weight: 878 KB
• Volume: 24
• Category: Article
• ISSN: 0950-0618
• DOI: 10.1016/j.conbuildmat.2010.03.007

✦ Synopsis

The aim of this paper is to propose a method for calculating the load-bearing capacity and stiffness of screws placed in an inclined position with respect to the shear plane and subjected to shear-compression load, to shear-tension load or to a combination due to their crossed X-position. At the same time, the authors also wish to highlight how the current method indicated by Eurocode 5 is partially unsuitable for describing the experimental results of strength and stiffness for these particular configurations. To this regard, push-out tests were carried out and the analysis of the resulting load-displacement curves has led to the definition of the main parameters describing the mechanical behaviour of the connections: strength, stiffness, effective number, ductility. The experimental values of strength and stiffness were then compared with the theoretical ones obtained using the Eurocode 5 calculation method and the calculation method proposed in this paper.