Reference lateral design value of single shear connection of Merbau wood using bolt

Abstract

The reference lateral design value is the basic load capacity for a fastener subjected to a lateral shear load. The design value is a consideration in designing a wooden connection. The main objective of this research was to determine the reference design value for a single bolt connection using Merbau wood. In this study, the experimental reference lateral design values were determined from the load-deformation curve with a 5% diameter offset method based on connection testing which refers to ASTM D5652 standard test methods for bolted connections in wood and wood-based products. Meanwhile, the prediction reference lateral design values were determined based on the formulas in the national design specification for wood construction. The wood used was Merbau (Intsia spp) using three bolt diameters (1/2, 5/8 and 3/4 in) and several wood thickness combinations. The results showed that the experimental design reference values ranged from 475 kg to 887 kg. The reference lateral design value was influenced by a combination of wood thickness and bolt diameter. The greater the thickness of the wood and the diameter of the bolt, the higher the value of the design obtained. The ratio between predictive Z according to yield mode and minimum Z in NDS and experimental Z showed the range from 0.53 to 1.07 and from 0.53 to 0.91.