The Fatigue Strength of Two-Pin Moment Resisting Dowel Joints

The fatigue resistance of 33 T-type two-pin moment- resisting dowel joints was investigated. All specimens were constructed of sugar maple (0.75 inches thick) conditioned to 7 percent M.C. Two 2 by 3/8 inch dowels spaced 1-1/2 inches apart were used to connect the 2-1/2 inch wide rail or leg of the T-type specimen, to the 3 inch wide post or bar of the T. A gap-filling urea-formaldehyde adhesive was used to assemble the joints. Both reversed and non-reversed loads applied at 40 cycles per minute were used. Joint life was essentially infinite only at a load level of I/6th or less of the ultimate static bending strength of the joint.

You must be logged in to download any documents. Please login (login accounts are free) or learn how to Become a Member