Effects of finger length on finger joint process of glued laminated timber

In this paper, the finger joint of larch were taken four kind of finger length, used Larix Gmelini as materials and resorcinol resin as adhesive. This paper made a systematic study on the influence law of end pressure and finger joint strength by finger length. The research results showed that the optimal the end pressure of finger joint decreased with the increase of finger length and the finger joint strength of glued laminated timber rise with the increase of finger length. The better finger length of finger joint was 13mm.