WITHDRAWAL PERFORMANCE OF WOOD SCREW INSERTED INTO CLT WITH SURFACE WETTED BY WATER

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  • CLTに挿入したビスの引き抜き性能に対する水掛かりの影響

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<p>Experiments were conducted to investigate the screw withdrawal performance of CLT that surface was wetted with water. Water wetting time and the location of the screw (surface or edge joint of lamina) were the experimental variables. Experimental results showed that the withdrawal force decreased as the time of water retention increased, and that the withdrawal force was significantly lower when screw was placed at edge joint of lamina. Furthermore, we proposed a formula for calculating the rate of reduction of the withdrawal force and confirmed the validity of the proposed formula.</p>

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