Effect of Timber Grain Orientation on Bonded-In Rod Connection Systems


Pearson, H., Evernden, M. and Harris, R., 2012. Effect of Timber Grain Orientation on Bonded-In Rod Connection Systems. Key Engineering Materials, 517 (1), pp. 695-704.

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Presented in this paper are the results of practical tests to determine some key material properties of engineered timber, in particular glulam. The results are discussed and compared with three known failure criterion, Hankinson’s formula, The Tsai-Wu criterion and Maximum stress theory to determine if they are appropriate models for predicting the properties of glulam. The properties considered have been chosen with respect to a connection system for use in folded plate structures utilizing embedded rods. This paper considers the effect of the timber grain angle on the compression, tensile and steel dowel rod pull-out strengths. The test data shows that Hankinson and Tsai- Wu are both good models to predict both the compression and tensile behavior of engineered timber products at non-tangential angles, whereas maximum stress theory had less correlation and over predicts the results and would not be recommended for use in engineered timber materials.


Item Type Articles
CreatorsPearson, H., Evernden, M. and Harris, R.
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Uncontrolled Keywordstimber, glulam, connections, grain angles, compression, tension, pull-out tests, strength, failure criterion
DepartmentsFaculty of Engineering & Design > Architecture & Civil Engineering
Research CentresBRE Centre in Innovative Construction Materials
ID Code31795


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