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首页> 外文会议>4th International Moratuwa Engineering Research Conference >Load Slip Behaviour of Bolted Timber Joints Made of “Hora” Timber Species
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Load Slip Behaviour of Bolted Timber Joints Made of “Hora” Timber Species

机译：“霍拉”木材制成的螺栓连接木材接头的载荷滑移行为

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The strength and load slip behaviour of bolted timber joints depends on such as embedment strength of timber, bending strength of the bolt and on the joint geometry. This paper discusses an experimental study in which bolt diameter and timber member thickness ratio between side member and middle member were varied in three member bolted joints of “Hora” (Dipterocarpus zeylanicus) timber species consisting of a single bolt. Specimens were tested in compression applied parallel to grain direction. Load slip curves were plotted and compared to obtain influence of geometry parameters on load slip behaviour. In most cases load per unit slip is greatly increased with increase in bolt diameter. It was also identified that load per unit slip did not change considerably with timber member thickness ratio. British Standards are widely used in Sri Lanka. These are based on empirical approaches developed on European softwoods. In Sri Lanka hardwoods are frequently used. Experimental values were compared with predicted values from BS 5268-Part 2:2002. Failure modes predicted from BS 5268-part 2: 2002, compared well with those observed experimentally. Up to the predicted permissible load, experimental and theoretical joint slip values are very similar; the difference was less than 1mm.
机译：螺栓连接的木材接头的强度和载荷滑移性能取决于木材的包埋强度，螺栓的弯曲强度以及接头的几何形状。本文讨论了一个实验研究，其中在由单个螺栓组成的“霍拉”（Dipterocarpus zeylanicus）木材物种的三个构件的螺栓连接中，改变螺栓的直径和侧构件与中间构件之间的木材构件厚度比。样品在平行于晶粒方向的压缩条件下进行测试。绘制负载滑移曲线并进行比较，以获得几何参数对负载滑移行为的影响。在大多数情况下，单位滑移的载荷会随着螺栓直径的增加而大大增加。还可以确定，每单位滑移的载荷不会随着木材构件厚度比的变化而显着变化。英国标准在斯里兰卡广泛使用。这些基于在欧洲软木上开​​发的经验方法。在斯里兰卡，经常使用硬木。将实验值与BS 5268-Part 2：2002中的预测值进行比较。根据BS 5268第2部分：2002预测的失效模式与实验观察到的相比很好。在预计的允许载荷范围内，实验和理论接头滑移值非常相似。差异小于1mm。

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