Structural Performance of a novel Interlocking Glued Solid Timber system

Patlakas, Panagiotis and Brunetti, Michele and Christovallis, Ioannis and Nocetti, Michela and Pizzo, Benedetto (2019) Structural Performance of a novel Interlocking Glued Solid Timber system. Materials and Structures, 52 (1). ISSN 1359-5997

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MAAS - Structural Performance of a novel IGST system - for BCU repo.pdf - Accepted Version

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This paper introduces a novel Mass Timber Construction (MTC) system and presents the results of an initial exploration of its structural performance. This system is called Interlocking Glued Solid Timber (IGST) and employs standard-sized solid timber joists, glued together in overlapping patterns. Diagonal cuts are utilised in order to bond adjoining elements.

For the purposes of the tests described in this paper, a total of 70 spruce joists were collected at a sawmill and categorised via dynamic modulus of elasticity measurements. Materials testing provided the compressive strength perpendicular to the grain and the shear strength parallel to the grain. Three different types of IGST prototypes were manufactured and tested to failure in a four-point bending test. An additional two series were tested, one of solid joists and one of a glued joist. Three-dimensional finite element models (FEM) were also developed to perform numerical analyses.

The results demonstrated that the ultimate capacity of one type of IGST prototype was very similar to that of a solid joist of equal cross-section.

As the IGST prototype if scalable, it could allow for applications similar to other MTC systems. Finally, the FEMs were generally accurate in predicting the performance of the IGST assemblies, thus allowing them to be used to simulate performance.

Item Type: Article
Additional Information: This is a post-peer-review, pre-copyedit version of an article published in Materials and Structures . The final authenticated version is available online at:
Identification Number:
27 January 2019Accepted
8 February 2019Published Online
8 February 2019Published
Uncontrolled Keywords: Timber; interlocking glued solid timber; glulam; mass timber
Subjects: CAH10 - engineering and technology > CAH10-01 - engineering > CAH10-01-07 - civil engineering
Divisions: Faculty of Computing, Engineering and the Built Environment
Faculty of Computing, Engineering and the Built Environment > School of Engineering and the Built Environment
Depositing User: Panagiotis Patlakas
Date Deposited: 24 Jan 2019 15:33
Last Modified: 03 Mar 2022 15:49

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