A Study on the Strength of 5 MM Dia Common Wire Nails under Varied Conditions of Members Thicknesses ( Double Shear and Quadruple Shear) in Structural Joint of Pterocarpus dalbergioides

Techniques of nail-jointed timber structures are now well-known for their role In promoting the utilization of short length small dimensioned stocks of timbers, simplicity of fabrication and economy in construction costs. In the present work on nailed joints an attempt bas been made to detrmine the relationship through actual laboratory tests, between strength of 5 mm dia 150 mm long common wire nails under fOllr different condition, of member thicknesses (double shear and quadruple shear joints) in Padauk (Pterocarpus dalbergioides) and two types of araln loadings. The data obtained may be applied in design problems of nail-jointed units for determining multiple shear strength of nails when their double sbear strengtb is known and vice versa for temporary and permanent type of constructions.