New design model for brittle failure in the parallel-to-grain direction of timber connections with large diameter fasteners. (15th August 2020)

• Record Type: Journal Article
• Authors: Yurrita, Miguel; Cabrero, José Manuel
• Is Part Of: Engineering structures. Volume 217(2020)
• Publication Date: 2020-08-15
• Subjects: Timber connection -- Brittle failure -- Parallel-to-grain -- Dowel-type fastener -- Eurocode 5; Structural engineering -- Periodicals; Structural analysis (Engineering) -- Periodicals; Construction, Technique de la -- Périodiques; Génie parasismique -- Périodiques; Pression du vent -- Périodiques; Earthquake engineering; Structural engineering; Wind-pressure; Periodicals; 624.105
• DOI: 10.1016/j.engstruct.2020.110557
• Languages: English
• ISSNs: 0141-0296

Abstract

Highlights: Brittle failure modes may happen in timber connections loaded parallel-to-grain. A new model for brittle failure in joints with large diameter fasteners is proposed. As a design model, it aims to be clear and simple for designers. The new proposal improves the accuracy of the existing models. Abstract: Timber connections may collapse in a brittle or in a ductile mode. The calculation models of timber joints are mainly focused on ductile failure mode, since it has been traditionally assumed that brittle failure was avoided by respecting a minimum spacing between fasteners. However, this assumption alone does not guarantee a ductile failure. This paper proposes a new design model dealing with brittle failure modes of timber connections with large diameter fasteners (those protruding the whole thickness of the timber member such as dowels or bolts). A comparison between the proposal and the existing models, using an extensive database of tests, is used to demonstrate the improved accuracy of the proposed design method.