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Official Journal of the Japan Wood Research Society

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Compressive and tensile properties of a butt-jointed lamination model

Abstract

A study was undertaken to evaluate the effect of glue application and placement of butt-joints on the compressive and tensile properties in a butt-jointed lamination. The aim was to provide background information for producing butt-jointed, glued, laminated timber. Three butt-jointed lamination models were prepared from spruce-pine-fir (S-P-F) dimension lumber with glued and nonglued butt joints, with different placements of the butt joints in the models. The axial stiffness and strength properties were assessed using both compressive and tensile tests. The results of the study indicated that for the compressive lamination model the application of glue at the butt joint gave more stiffness than the nonglued butt joint. Neither glue application nor placement of the joint had a statistically significant effect on the compressive strength. There were no significant differences between the glued and nonglued butt joint for either tensile strength or stiffness.

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Correspondence to Anim Boanyo Dansoh.

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Dansoh, A., Koizumi, A. & Hirai, T. Compressive and tensile properties of a butt-jointed lamination model. J Wood Sci 49, 405–410 (2003). https://doi.org/10.1007/s10086-002-0508-4

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Key words

  • Butt joint
  • Glued joint
  • Glulam
  • Compression
  • Tension