[PDF][PDF] Design model for inclined screws under varying load to grain angles
Proceedings of International Network on Timber Engineering Research …, 2014•researchgate.net
Fully threaded screws are used in various applications for the purpose of connecting or
reinforcing structural timber elements. The screws are easy to apply and exhibit high
performance. Like other dowel type fasteners, fully threaded screws show highest strength
and stiffness properties when being loaded in axial direction. Hence, the optimal inclination
(shank versus grain direction) of the screws has to be chosen with respect to the acting
forces in the joint. Different situations where screws are applied as reinforcing elements are …
reinforcing structural timber elements. The screws are easy to apply and exhibit high
performance. Like other dowel type fasteners, fully threaded screws show highest strength
and stiffness properties when being loaded in axial direction. Hence, the optimal inclination
(shank versus grain direction) of the screws has to be chosen with respect to the acting
forces in the joint. Different situations where screws are applied as reinforcing elements are …
Fully threaded screws are used in various applications for the purpose of connecting or reinforcing structural timber elements. The screws are easy to apply and exhibit high performance. Like other dowel type fasteners, fully threaded screws show highest strength and stiffness properties when being loaded in axial direction. Hence, the optimal inclination (shank versus grain direction) of the screws has to be chosen with respect to the acting forces in the joint.
Different situations where screws are applied as reinforcing elements are shown in Fig. 1 (ad). In the cases of pure compression or pure tension perpendicular to the grain, the screws should be set perpendicular to the grain. For reinforcement purposes in zones subjected to high shear stresses the screws, however, should be applied with an angle of γ= 45◦ between shank and grain direction.
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