Effect of adhesive applied to the tooth-wood interface on metal-plate connections loaded in tension

The structural behavior of metal-plate connections (MPCs) is affected not only by the isolated properties of the adjoining wood members and metal plate but also by the interfacial region between individual teeth and the surrounding wood. This study looked at maintaining a good interface by applying an epoxy adhesive to metal-plate teeth immediately preceding joint assembly. Addition of an adhesive layer between the teeth and wood substantially increased MPC stiffness, critical slip, and ultimate load for tensile specimens.

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