These general dowel equations are applicable to NDS connection conditions, allow for evaluation of connections with gaps between connected members, and include separate equation variables to better account for varying bearing and moment resistances of fasteners having more than one diameter along their length (such as threaded fasteners).

Dowel bearing strength is the property of connection members that imparts resistance to embedding of a dowel. Whale and Smith (1986) related this property to species density and dowel diameter for bolts and nails. The authors defined bearing strength as the max-imum test load.

Jan 25, 2017 · NDS Dowel-fastener Connections • 2015 NDS Chapter 12 (New location) • Can be used for any dowel-shaped fastener • Includes lateral and withdrawal provisions • Bolts • Lag screws • Wood screws • Nails • Spikes • Drift bolts • Drift pins 59

Dowelled connections transfer the force between members through a com-bination of dowel bearing and bending of the dowel fastener. Bolts must be structural quality bolts, equal to or better than ANSI/ ASME Standard B18.2.1. Bolt holes must be a minimum of 1/32 inch and a maximum of 1/16 inch larger than the bolt diameter.

Apr 1, 2024 · The dowel-bearing strength of NABS is higher compared to other engineered bamboo products with similar dowel diameters, which also indicates that the mechanical properties of engineered bamboo products are significantly affected by raw bamboo species and production process.

resistance and dowel bearing resistance on a connection’s lateral strength. Based on the European Yield Model (Soltis 1991), connection strength is assumed to be reached when: (1) compressive strength of the member benea. h the dowel is exceeded; or (2) one or more plastic hinges forms in the dowel. Behavior of the connection is as.

Wood Maximum Dowel Bearing Strengths, for Dowel-Type Fasteners in Wood Members. Dowel bearing length in the side member (s) and main member, is best determined based on the length of dowel bearing perpendicular to the application of load.

dowel bearing strength was determined for matched specimens of three softwood species (southern pine, Douglas-fir/larch, and spruce-pine-fir) using a 0.131-inch- (3.33-mm-) diameter nail.

1.1 This test method provides the basic procedure for evaluating dowel-bearing strength of wood and wood-based products. The bearing test results are used to determine the static load resistance and deformation characteristics of connections in wood and

Oct 22, 2024 · Analyzing the failure modes, load–displacement curves, and key mechanical properties of the specimens, comparing the dowel bearing strength trends across grain angles in different bamboo and wood materials. Discrepancies between theoretical predictions and experimental results were also evaluated.