Bending moment resistance of corner joints constructed with spline under diagonal tension and compression

Abstract

We determined the effects of the penetration depth and spline material and composite material type as well as joining method on bending moment resistance under diagonal compression and tension in common wood panel structures. Composite materials were laminated medium density fiberboard (MDF) and particleboard. Joining methods were butt and miter types. Spline materials were high density fiberboard (HDF). The penetration depths of plywood, wood (Carpinus betolus) and spline were 8, 11 and 14 mm. The results showed that in both diagonal compression and tension, MDF joints are stronger than particleboard joints, and the bending moment resistance under compression is higher compared with that in tension. The highest bending moment resistance under tension was shown in MDF, butt joined using plywood spline with 8 mm penetration depth, whereas under compression bending moment resistance was seen in MDF, miter joined with the HDF spline of 14 mm penetration depth.

Keywords

Penetration depth / composite material type / joining type / bending moment resistance