Dowel-type timber joints made of wood are of particular interest for interventions on built heritage because such heritage buildings often involve timber structures. Wooden dowels offer a lower cost when compared with other connectors and conform to the tendency for using wood-based solutions to retrofit timber structures. However, there is a significant lack of information regarding the modelling of these wooden connectors’ responses, in terms of analytical expressions as numerical models. Therefore, this paper presents the results of an extensive experimental campaign of timber-to-timber joints using wooden dowels. Two wood species were considered: chestnut as a hardwood and spruce as a softwood. The wooden dowels were always made of massaranduba, a Brazilian hardwood. The aim of the experimental campaign was to obtain and analyse the response of this type of connection, and then to compare it with the load-carrying capacity accessed through the available analytical expressions to verify its accuracy. The test results highlighted the advantages of using wooden dowels in timber joints. Moreover, it became clear that further analysis and research studies are needed to suggest new expressions that are in accordance with the behaviour of the connection.

中文翻译：

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销钉式木榫钉木节的试验评估

木材制成的榫钉式木材接头对于干预建筑遗产特别感兴趣，因为此类遗产建筑通常涉及木材结构。与其他连接器相比，木榫的成本更低，并且符合使用木质解决方案翻新木结构的趋势。但是，就作为数值模型的分析表达式而言，关于这些木制连接器响应建模的信息非常缺乏。因此，本文介绍了使用木销钉进行的木材到木材接头的广泛实验活动的结果。考虑了两种木材：栗子为硬木，云杉为软木。木制销钉始终由巴西硬木Massaranduba制成。实验活动的目的是获得并分析这种类型的连接的响应，然后将其与通过可用分析表达式访问的承载能力进行比较，以验证其准确性。测试结果突出了在木材接头中使用木制销钉的优势。此外，很明显，需要进行进一步的分析和研究以提出符合连接行为的新表达方式。